diff --git a/Documentation/NuttShell.html b/Documentation/NuttShell.html
index 73bb1bf6583..c2bc61cbb61 100644
--- a/Documentation/NuttShell.html
+++ b/Documentation/NuttShell.html
@@ -8,7 +8,7 @@
   <tr align="center" bgcolor="#e4e4e4">
     <td>
       <h1><big><font color="#3c34ec"><i>NuttShell (NSH)</i></font></big></h1>
-      <p>Last Updated: September 1, 2011</p>
+      <p>Last Updated: February 2, 2012</p>
     </td>
   </tr>
 </table>
@@ -2131,13 +2131,6 @@ nsh>
       Default: 80
     </td>
   </tr>
-  <tr>
-    <td valign="top"><b><code>CONFIG_NSH_STACKSIZE</code></b></td>
-    <td>
-      The stack size to use when spawning new threads or tasks.  Such
-      new threads are generated when a command is executed in background
-      or as new TELNET connections are established.
-    </td>
   </tr>
   <tr>
     <td valign="top"><b><code>CONFIG_NSH_NESTDEPTH</code></b></td>
@@ -2227,6 +2220,52 @@ nsh>
   </tr>
 </table></center>
 
+<p>
+  If Telnet is selected for the NSH console, then we must configure
+  the resources used by the Telnet daemon and by the Telnet clients.
+</p>
+
+<center><table width="100%">
+  <tr bgcolor="#e4e4e4">
+    <th align="left" width="25%">Configuration</th>
+    <th align="left">Description</th>
+  </tr>
+  <tr>
+    <td valign="top"><b><code>CONFIG_NSH_TELNETD_PORT</code></b></td>
+    <td>
+      The telnet daemon will listen on this TCP port number for connections.  Default: 23
+    </td>
+  </tr>
+  <tr>
+    <td valign="top"><b><code>CONFIG_NSH_TELNETD_DAEMONPRIO</code></b></td>
+    <td>
+      Priority of the Telnet daemon.
+      Default: <code>SCHED_PRIORITY_DEFAULT</code>
+    </td>
+  </tr>
+  <tr>
+    <td valign="top"><b><code>CONFIG_NSH_TELNETD_DAEMONSTACKSIZE</code></b></td>
+    <td>
+      Stack size allocated for the
+      Telnet daemon. Default: 2048
+    </td>
+    </td>
+  </tr>
+  <tr>
+    <td valign="top"><b><code>CONFIG_NSH_TELNETD_CLIENTPRIO</code></b></td>
+    <td>
+      Priority of the Telnet client.
+      Default: <code>SCHED_PRIORITY_DEFAULT</code>
+    </td>
+  </tr>
+  <tr>
+    <td valign="top"><b><code>CONFIG_NSH_TELNETD_CLIENTSTACKSIZE</code></b></td>
+    <td>
+      Stack size allocated for the Telnet client. Default: 2048
+    </td>
+  </tr>
+</table></center>
+
 <p>
   One or both of <code>CONFIG_NSH_CONSOLE</code> and <code>CONFIG_NSH_TELNET</code>
   must be defined.  If <code>CONFIG_NSH_TELNET</code> is selected, then there some
@@ -2457,7 +2496,6 @@ nsh>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_ARCHROMFS</code></a></li>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_ROMFSMOUNTPT</code></a></li>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_ROMFSSECTSIZE</code></a></li>
-  <li><a href="#nshconfiguration"><code>CONFIG_NSH_STACKSIZE</code></a></li>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_STRERROR</code></a></li>
   <li><a href="#nshconfiguration"><code>CONFIG_NSH_TELNET</code></a></li>
   <li><a href="#configuration">Configuration settings</a></li>
diff --git a/configs/amber/hello/defconfig b/configs/amber/hello/defconfig
index 862d079b962..3f8f8ce354f 100644
--- a/configs/amber/hello/defconfig
+++ b/configs/amber/hello/defconfig
@@ -658,7 +658,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -689,7 +688,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=1024
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/avr32dev1/nsh/defconfig b/configs/avr32dev1/nsh/defconfig
index 3d2c5544f29..7b43524b2fd 100755
--- a/configs/avr32dev1/nsh/defconfig
+++ b/configs/avr32dev1/nsh/defconfig
@@ -672,7 +672,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -703,7 +702,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=1024
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/avr32dev1/ostest/defconfig b/configs/avr32dev1/ostest/defconfig
index 668b2ec0542..fd2f7e07352 100755
--- a/configs/avr32dev1/ostest/defconfig
+++ b/configs/avr32dev1/ostest/defconfig
@@ -672,7 +672,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -703,7 +702,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/c5471evm/httpd/defconfig b/configs/c5471evm/httpd/defconfig
index 66a070a0d33..3e993a23067 100644
--- a/configs/c5471evm/httpd/defconfig
+++ b/configs/c5471evm/httpd/defconfig
@@ -401,7 +401,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/c5471evm/nettest/defconfig b/configs/c5471evm/nettest/defconfig
index 6daa4309b7e..3a3d4411eab 100644
--- a/configs/c5471evm/nettest/defconfig
+++ b/configs/c5471evm/nettest/defconfig
@@ -401,7 +401,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=y
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/c5471evm/nsh/appconfig b/configs/c5471evm/nsh/appconfig
index c3dade0753a..a2ec0db6619 100644
--- a/configs/c5471evm/nsh/appconfig
+++ b/configs/c5471evm/nsh/appconfig
@@ -50,6 +50,9 @@ CONFIGURED_APPS += netutils/dhcpc
 CONFIGURED_APPS += netutils/resolv
 CONFIGURED_APPS += netutils/tftpc
 CONFIGURED_APPS += netutils/webclient
+ifeq ($(CONFIG_NSH_TELNET),y)
+CONFIGURED_APPS += netutils/telnetd
+endif
 endif
 
 
diff --git a/configs/c5471evm/nsh/defconfig b/configs/c5471evm/nsh/defconfig
index 8ad5bdce91b..23fef3fd1a6 100644
--- a/configs/c5471evm/nsh/defconfig
+++ b/configs/c5471evm/nsh/defconfig
@@ -401,7 +401,6 @@ CONFIG_NSH_CONSOLE=n
 CONFIG_NSH_TELNET=y
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=y
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/c5471evm/ostest/defconfig b/configs/c5471evm/ostest/defconfig
index fa0f15446e0..2b2df80dc94 100644
--- a/configs/c5471evm/ostest/defconfig
+++ b/configs/c5471evm/ostest/defconfig
@@ -401,7 +401,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=y
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/demo9s12ne64/ostest/defconfig b/configs/demo9s12ne64/ostest/defconfig
index fa7c36db930..52252cf3dfb 100755
--- a/configs/demo9s12ne64/ostest/defconfig
+++ b/configs/demo9s12ne64/ostest/defconfig
@@ -648,7 +648,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -679,7 +678,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=512
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ea3131/nsh/defconfig b/configs/ea3131/nsh/defconfig
index fa09b56004d..12ba1c799f4 100644
--- a/configs/ea3131/nsh/defconfig
+++ b/configs/ea3131/nsh/defconfig
@@ -656,7 +656,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -687,7 +686,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ea3131/ostest/defconfig b/configs/ea3131/ostest/defconfig
index cc4e8ddb612..67d422e5d57 100644
--- a/configs/ea3131/ostest/defconfig
+++ b/configs/ea3131/ostest/defconfig
@@ -656,7 +656,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -687,7 +686,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ea3131/pgnsh/defconfig b/configs/ea3131/pgnsh/defconfig
index da217f4d336..bec794719fc 100644
--- a/configs/ea3131/pgnsh/defconfig
+++ b/configs/ea3131/pgnsh/defconfig
@@ -807,7 +807,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -838,7 +837,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ea3131/usbserial/defconfig b/configs/ea3131/usbserial/defconfig
index 470df0d8a8d..bdb7ea0559b 100644
--- a/configs/ea3131/usbserial/defconfig
+++ b/configs/ea3131/usbserial/defconfig
@@ -659,7 +659,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -690,7 +689,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ea3131/usbstorage/defconfig b/configs/ea3131/usbstorage/defconfig
index f681f3f2a2b..e9a4a5eb40b 100644
--- a/configs/ea3131/usbstorage/defconfig
+++ b/configs/ea3131/usbstorage/defconfig
@@ -659,7 +659,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -690,7 +689,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ea3152/ostest/defconfig b/configs/ea3152/ostest/defconfig
index 8a3dcb98a52..8a6d6672552 100644
--- a/configs/ea3152/ostest/defconfig
+++ b/configs/ea3152/ostest/defconfig
@@ -657,7 +657,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -688,7 +687,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/eagle100/httpd/defconfig b/configs/eagle100/httpd/defconfig
index 200b9006c7e..74cb4ef5bfe 100644
--- a/configs/eagle100/httpd/defconfig
+++ b/configs/eagle100/httpd/defconfig
@@ -522,7 +522,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -553,7 +552,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/eagle100/nettest/defconfig b/configs/eagle100/nettest/defconfig
index 1f3e0ec5ce1..a21a608cd7f 100644
--- a/configs/eagle100/nettest/defconfig
+++ b/configs/eagle100/nettest/defconfig
@@ -513,7 +513,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -544,7 +543,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/eagle100/nsh/defconfig b/configs/eagle100/nsh/defconfig
index 400777d774e..d44f5b4f326 100644
--- a/configs/eagle100/nsh/defconfig
+++ b/configs/eagle100/nsh/defconfig
@@ -498,7 +498,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -529,7 +528,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/eagle100/nxflat/defconfig b/configs/eagle100/nxflat/defconfig
index 712658716fb..bc78a52918b 100644
--- a/configs/eagle100/nxflat/defconfig
+++ b/configs/eagle100/nxflat/defconfig
@@ -511,7 +511,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -542,7 +541,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/eagle100/ostest/defconfig b/configs/eagle100/ostest/defconfig
index 5cf69cf43c6..91f6dca425f 100644
--- a/configs/eagle100/ostest/defconfig
+++ b/configs/eagle100/ostest/defconfig
@@ -505,7 +505,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -536,7 +535,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/eagle100/thttpd/defconfig b/configs/eagle100/thttpd/defconfig
index 980211f1a65..2f53e4eb4ca 100644
--- a/configs/eagle100/thttpd/defconfig
+++ b/configs/eagle100/thttpd/defconfig
@@ -609,7 +609,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -640,7 +639,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ez80f910200kitg/ostest/defconfig b/configs/ez80f910200kitg/ostest/defconfig
index e1a0ad5ef84..ab9f1f8cd9d 100644
--- a/configs/ez80f910200kitg/ostest/defconfig
+++ b/configs/ez80f910200kitg/ostest/defconfig
@@ -640,7 +640,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -668,7 +667,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=1024
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ez80f910200zco/dhcpd/defconfig b/configs/ez80f910200zco/dhcpd/defconfig
index dd3230e82dd..e4c25f5995b 100644
--- a/configs/ez80f910200zco/dhcpd/defconfig
+++ b/configs/ez80f910200zco/dhcpd/defconfig
@@ -667,7 +667,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -695,7 +694,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=1024
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ez80f910200zco/httpd/defconfig b/configs/ez80f910200zco/httpd/defconfig
index 7b1961a3544..7cfd0357da2 100644
--- a/configs/ez80f910200zco/httpd/defconfig
+++ b/configs/ez80f910200zco/httpd/defconfig
@@ -675,7 +675,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -703,7 +702,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=1024
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ez80f910200zco/nettest/defconfig b/configs/ez80f910200zco/nettest/defconfig
index f2f267b9265..97dc6836c54 100644
--- a/configs/ez80f910200zco/nettest/defconfig
+++ b/configs/ez80f910200zco/nettest/defconfig
@@ -667,7 +667,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -695,7 +694,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=1024
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ez80f910200zco/nsh/defconfig b/configs/ez80f910200zco/nsh/defconfig
index 73393b56e08..580233bed96 100644
--- a/configs/ez80f910200zco/nsh/defconfig
+++ b/configs/ez80f910200zco/nsh/defconfig
@@ -667,7 +667,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -695,7 +694,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ez80f910200zco/ostest/defconfig b/configs/ez80f910200zco/ostest/defconfig
index 340ee9d4230..6712b4bf56f 100644
--- a/configs/ez80f910200zco/ostest/defconfig
+++ b/configs/ez80f910200zco/ostest/defconfig
@@ -650,7 +650,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -678,7 +677,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=1024
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ez80f910200zco/poll/defconfig b/configs/ez80f910200zco/poll/defconfig
index d90836a171a..6cb6fbdf1c0 100644
--- a/configs/ez80f910200zco/poll/defconfig
+++ b/configs/ez80f910200zco/poll/defconfig
@@ -667,7 +667,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -695,7 +694,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=1024
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/hymini-stm32v/buttons/defconfig b/configs/hymini-stm32v/buttons/defconfig
index 811400e259a..8a2bf3b07c4 100644
--- a/configs/hymini-stm32v/buttons/defconfig
+++ b/configs/hymini-stm32v/buttons/defconfig
@@ -761,7 +761,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -792,7 +791,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/hymini-stm32v/nsh/defconfig b/configs/hymini-stm32v/nsh/defconfig
index 2dddc77fed4..9bc30fb1203 100755
--- a/configs/hymini-stm32v/nsh/defconfig
+++ b/configs/hymini-stm32v/nsh/defconfig
@@ -745,7 +745,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -777,7 +776,6 @@ CONFIG_NSH_BUILTIN_APPS=n
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/hymini-stm32v/nsh2/defconfig b/configs/hymini-stm32v/nsh2/defconfig
index 897feeabff8..8519a27fb86 100644
--- a/configs/hymini-stm32v/nsh2/defconfig
+++ b/configs/hymini-stm32v/nsh2/defconfig
@@ -869,7 +869,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -903,7 +902,6 @@ CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/hymini-stm32v/nx/defconfig b/configs/hymini-stm32v/nx/defconfig
index 48f1a866d98..272661e14ae 100644
--- a/configs/hymini-stm32v/nx/defconfig
+++ b/configs/hymini-stm32v/nx/defconfig
@@ -913,7 +913,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -946,7 +945,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/hymini-stm32v/nxlines/defconfig b/configs/hymini-stm32v/nxlines/defconfig
index e6b33fbced4..9467ca1d2bd 100644
--- a/configs/hymini-stm32v/nxlines/defconfig
+++ b/configs/hymini-stm32v/nxlines/defconfig
@@ -896,7 +896,6 @@ CONFIG_LCD_MAXCONTRAST=100
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -929,7 +928,6 @@ CONFIG_LCD_MAXCONTRAST=100
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/hymini-stm32v/usbserial/defconfig b/configs/hymini-stm32v/usbserial/defconfig
index d5ef2ffc48f..a56197c5bb9 100755
--- a/configs/hymini-stm32v/usbserial/defconfig
+++ b/configs/hymini-stm32v/usbserial/defconfig
@@ -806,7 +806,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -837,7 +836,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/hymini-stm32v/usbstorage/defconfig b/configs/hymini-stm32v/usbstorage/defconfig
index e55183f54af..6ff131166f5 100755
--- a/configs/hymini-stm32v/usbstorage/defconfig
+++ b/configs/hymini-stm32v/usbstorage/defconfig
@@ -753,7 +753,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -787,7 +786,6 @@ CONFIG_NSH_BUILTIN_APPS=n
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/kwikstik-k40/ostest/defconfig b/configs/kwikstik-k40/ostest/defconfig
index 3dec59521dd..d759ab84f22 100755
--- a/configs/kwikstik-k40/ostest/defconfig
+++ b/configs/kwikstik-k40/ostest/defconfig
@@ -799,7 +799,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -830,7 +829,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/lm3s6432-s2e/nsh/appconfig b/configs/lm3s6432-s2e/nsh/appconfig
index 7d52c91a6f9..74d29ef6773 100644
--- a/configs/lm3s6432-s2e/nsh/appconfig
+++ b/configs/lm3s6432-s2e/nsh/appconfig
@@ -50,6 +50,9 @@ CONFIGURED_APPS += netutils/dhcpc
 CONFIGURED_APPS += netutils/resolv
 CONFIGURED_APPS += netutils/tftpc
 CONFIGURED_APPS += netutils/webclient
+ifeq ($(CONFIG_NSH_TELNET),y)
+CONFIGURED_APPS += netutils/telnetd
+endif
 endif
 
 
diff --git a/configs/lm3s6432-s2e/nsh/defconfig b/configs/lm3s6432-s2e/nsh/defconfig
index bf609f55f93..3f0a256df45 100644
--- a/configs/lm3s6432-s2e/nsh/defconfig
+++ b/configs/lm3s6432-s2e/nsh/defconfig
@@ -522,7 +522,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -553,7 +552,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/lm3s6432-s2e/ostest/defconfig b/configs/lm3s6432-s2e/ostest/defconfig
index b833876867d..716a2c0a708 100644
--- a/configs/lm3s6432-s2e/ostest/defconfig
+++ b/configs/lm3s6432-s2e/ostest/defconfig
@@ -519,7 +519,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -550,7 +549,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/lm3s6965-ek/nsh/appconfig b/configs/lm3s6965-ek/nsh/appconfig
index 4dbbc3bb755..6277056d00d 100644
--- a/configs/lm3s6965-ek/nsh/appconfig
+++ b/configs/lm3s6965-ek/nsh/appconfig
@@ -50,6 +50,9 @@ CONFIGURED_APPS += netutils/dhcpc
 CONFIGURED_APPS += netutils/resolv
 CONFIGURED_APPS += netutils/tftpc
 CONFIGURED_APPS += netutils/webclient
+ifeq ($(CONFIG_NSH_TELNET),y)
+CONFIGURED_APPS += netutils/telnetd
+endif
 endif
 
 
diff --git a/configs/lm3s6965-ek/nsh/defconfig b/configs/lm3s6965-ek/nsh/defconfig
index 1572b145633..d8c8150b565 100755
--- a/configs/lm3s6965-ek/nsh/defconfig
+++ b/configs/lm3s6965-ek/nsh/defconfig
@@ -522,7 +522,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -553,7 +552,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/lm3s6965-ek/nx/defconfig b/configs/lm3s6965-ek/nx/defconfig
index 2a8bb6e990d..e5038a63034 100755
--- a/configs/lm3s6965-ek/nx/defconfig
+++ b/configs/lm3s6965-ek/nx/defconfig
@@ -643,7 +643,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -674,7 +673,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/lm3s6965-ek/ostest/defconfig b/configs/lm3s6965-ek/ostest/defconfig
index a9708b6608b..eeb5f241dcc 100755
--- a/configs/lm3s6965-ek/ostest/defconfig
+++ b/configs/lm3s6965-ek/ostest/defconfig
@@ -519,7 +519,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -550,7 +549,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/lm3s8962-ek/nsh/appconfig b/configs/lm3s8962-ek/nsh/appconfig
index 5268df23949..5eeb5660769 100644
--- a/configs/lm3s8962-ek/nsh/appconfig
+++ b/configs/lm3s8962-ek/nsh/appconfig
@@ -50,6 +50,9 @@ CONFIGURED_APPS += netutils/dhcpc
 CONFIGURED_APPS += netutils/resolv
 CONFIGURED_APPS += netutils/tftpc
 CONFIGURED_APPS += netutils/webclient
+ifeq ($(CONFIG_NSH_TELNET),y)
+CONFIGURED_APPS += netutils/telnetd
+endif
 endif
 
 
diff --git a/configs/lm3s8962-ek/nsh/defconfig b/configs/lm3s8962-ek/nsh/defconfig
index 4b4bbed6c27..766a4118869 100755
--- a/configs/lm3s8962-ek/nsh/defconfig
+++ b/configs/lm3s8962-ek/nsh/defconfig
@@ -522,7 +522,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -553,7 +552,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/lm3s8962-ek/nx/defconfig b/configs/lm3s8962-ek/nx/defconfig
index 0ccbe5e023f..ce5db777d14 100755
--- a/configs/lm3s8962-ek/nx/defconfig
+++ b/configs/lm3s8962-ek/nx/defconfig
@@ -642,7 +642,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -673,7 +672,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/lm3s8962-ek/ostest/defconfig b/configs/lm3s8962-ek/ostest/defconfig
index a2e7a03797a..c5701f3d99e 100755
--- a/configs/lm3s8962-ek/ostest/defconfig
+++ b/configs/lm3s8962-ek/ostest/defconfig
@@ -519,7 +519,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -550,7 +549,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/lpcxpresso-lpc1768/dhcpd/defconfig b/configs/lpcxpresso-lpc1768/dhcpd/defconfig
index 1b80f4ccf39..40d2c5b3133 100755
--- a/configs/lpcxpresso-lpc1768/dhcpd/defconfig
+++ b/configs/lpcxpresso-lpc1768/dhcpd/defconfig
@@ -756,7 +756,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -787,7 +786,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/lpcxpresso-lpc1768/nsh/appconfig b/configs/lpcxpresso-lpc1768/nsh/appconfig
index b37487fd0fd..1b4a2e23c2d 100644
--- a/configs/lpcxpresso-lpc1768/nsh/appconfig
+++ b/configs/lpcxpresso-lpc1768/nsh/appconfig
@@ -50,6 +50,9 @@ CONFIGURED_APPS += netutils/dhcpc
 CONFIGURED_APPS += netutils/resolv
 CONFIGURED_APPS += netutils/tftpc
 CONFIGURED_APPS += netutils/webclient
+ifeq ($(CONFIG_NSH_TELNET),y)
+CONFIGURED_APPS += netutils/telnetd
+endif
 endif
 
 
diff --git a/configs/lpcxpresso-lpc1768/nsh/defconfig b/configs/lpcxpresso-lpc1768/nsh/defconfig
index b6b438ae88e..ca1539e6def 100755
--- a/configs/lpcxpresso-lpc1768/nsh/defconfig
+++ b/configs/lpcxpresso-lpc1768/nsh/defconfig
@@ -788,7 +788,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -819,7 +818,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/lpcxpresso-lpc1768/nx/defconfig b/configs/lpcxpresso-lpc1768/nx/defconfig
index 6b584ab87d3..d7ef4291db1 100755
--- a/configs/lpcxpresso-lpc1768/nx/defconfig
+++ b/configs/lpcxpresso-lpc1768/nx/defconfig
@@ -876,7 +876,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -907,7 +906,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/lpcxpresso-lpc1768/ostest/defconfig b/configs/lpcxpresso-lpc1768/ostest/defconfig
index 1e42d603177..8f50ccd291b 100755
--- a/configs/lpcxpresso-lpc1768/ostest/defconfig
+++ b/configs/lpcxpresso-lpc1768/ostest/defconfig
@@ -744,7 +744,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -775,7 +774,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/lpcxpresso-lpc1768/thttpd/defconfig b/configs/lpcxpresso-lpc1768/thttpd/defconfig
index ecfe5959a5a..5c18ffcef05 100755
--- a/configs/lpcxpresso-lpc1768/thttpd/defconfig
+++ b/configs/lpcxpresso-lpc1768/thttpd/defconfig
@@ -843,7 +843,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -874,7 +873,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/lpcxpresso-lpc1768/usbstorage/defconfig b/configs/lpcxpresso-lpc1768/usbstorage/defconfig
index f18ac3a2aa5..73aa6105a72 100755
--- a/configs/lpcxpresso-lpc1768/usbstorage/defconfig
+++ b/configs/lpcxpresso-lpc1768/usbstorage/defconfig
@@ -733,7 +733,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -764,7 +763,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/m68332evb/defconfig b/configs/m68332evb/defconfig
index 2259d41b83b..ac4df599538 100644
--- a/configs/m68332evb/defconfig
+++ b/configs/m68332evb/defconfig
@@ -347,7 +347,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/mbed/hidkbd/defconfig b/configs/mbed/hidkbd/defconfig
index 71be225be2d..332ddb97793 100644
--- a/configs/mbed/hidkbd/defconfig
+++ b/configs/mbed/hidkbd/defconfig
@@ -775,7 +775,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -806,7 +805,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/mbed/nsh/defconfig b/configs/mbed/nsh/defconfig
index 6d23e1d193d..0438f5e70e0 100755
--- a/configs/mbed/nsh/defconfig
+++ b/configs/mbed/nsh/defconfig
@@ -704,7 +704,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -735,7 +734,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/mcu123-lpc214x/composite/defconfig b/configs/mcu123-lpc214x/composite/defconfig
index b08f2030854..9ad8a8e2bad 100644
--- a/configs/mcu123-lpc214x/composite/defconfig
+++ b/configs/mcu123-lpc214x/composite/defconfig
@@ -671,7 +671,6 @@ CONFIG_COMPOSITE_VERSIONNO=0x0101
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -701,7 +700,6 @@ CONFIG_COMPOSITE_VERSIONNO=0x0101
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/mcu123-lpc214x/nsh/defconfig b/configs/mcu123-lpc214x/nsh/defconfig
index c398546dff1..5c4b847b1d2 100644
--- a/configs/mcu123-lpc214x/nsh/defconfig
+++ b/configs/mcu123-lpc214x/nsh/defconfig
@@ -546,7 +546,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -577,7 +576,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/mcu123-lpc214x/ostest/defconfig b/configs/mcu123-lpc214x/ostest/defconfig
index 1793d5d27e0..923d1b39c78 100644
--- a/configs/mcu123-lpc214x/ostest/defconfig
+++ b/configs/mcu123-lpc214x/ostest/defconfig
@@ -536,7 +536,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -567,7 +566,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/mcu123-lpc214x/usbserial/defconfig b/configs/mcu123-lpc214x/usbserial/defconfig
index f7bc30d69c4..10971212556 100644
--- a/configs/mcu123-lpc214x/usbserial/defconfig
+++ b/configs/mcu123-lpc214x/usbserial/defconfig
@@ -537,7 +537,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -568,7 +567,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/mcu123-lpc214x/usbstorage/defconfig b/configs/mcu123-lpc214x/usbstorage/defconfig
index 44dd15ff048..e7ebfb70beb 100644
--- a/configs/mcu123-lpc214x/usbstorage/defconfig
+++ b/configs/mcu123-lpc214x/usbstorage/defconfig
@@ -537,7 +537,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -567,7 +566,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/micropendous3/hello/defconfig b/configs/micropendous3/hello/defconfig
index ccd0f9d6010..e3603ec1474 100644
--- a/configs/micropendous3/hello/defconfig
+++ b/configs/micropendous3/hello/defconfig
@@ -652,7 +652,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -683,7 +682,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=1024
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/mx1ads/ostest/defconfig b/configs/mx1ads/ostest/defconfig
index b5f97c37c5c..134896042b5 100644
--- a/configs/mx1ads/ostest/defconfig
+++ b/configs/mx1ads/ostest/defconfig
@@ -525,7 +525,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/ne64badge/ostest/defconfig b/configs/ne64badge/ostest/defconfig
index 32af8f7e698..7af1d943bf4 100755
--- a/configs/ne64badge/ostest/defconfig
+++ b/configs/ne64badge/ostest/defconfig
@@ -659,7 +659,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -690,7 +689,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=512
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ntosd-dm320/nettest/defconfig b/configs/ntosd-dm320/nettest/defconfig
index b8962b73944..973f54f7acb 100644
--- a/configs/ntosd-dm320/nettest/defconfig
+++ b/configs/ntosd-dm320/nettest/defconfig
@@ -521,7 +521,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/ntosd-dm320/nsh/appconfig b/configs/ntosd-dm320/nsh/appconfig
index 2c1a116c3f6..21cbb632778 100644
--- a/configs/ntosd-dm320/nsh/appconfig
+++ b/configs/ntosd-dm320/nsh/appconfig
@@ -50,6 +50,9 @@ CONFIGURED_APPS += netutils/dhcpc
 CONFIGURED_APPS += netutils/resolv
 CONFIGURED_APPS += netutils/tftpc
 CONFIGURED_APPS += netutils/webclient
+ifeq ($(CONFIG_NSH_TELNET),y)
+CONFIGURED_APPS += netutils/telnetd
+endif
 endif
 
 
diff --git a/configs/ntosd-dm320/nsh/defconfig b/configs/ntosd-dm320/nsh/defconfig
index 3556438f3bc..0af74e3f220 100644
--- a/configs/ntosd-dm320/nsh/defconfig
+++ b/configs/ntosd-dm320/nsh/defconfig
@@ -533,7 +533,6 @@ CONFIG_EXAMPLES_OSTEST_STACKSIZE=8192
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -561,7 +560,6 @@ CONFIG_EXAMPLES_OSTEST_STACKSIZE=8192
 CONFIG_NSH_FILEIOSIZE=1024
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=80
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/ntosd-dm320/ostest/defconfig b/configs/ntosd-dm320/ostest/defconfig
index a9790803cae..d61a8d14494 100644
--- a/configs/ntosd-dm320/ostest/defconfig
+++ b/configs/ntosd-dm320/ostest/defconfig
@@ -513,7 +513,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/ntosd-dm320/poll/defconfig b/configs/ntosd-dm320/poll/defconfig
index c1e62fb1ba7..b849e524007 100644
--- a/configs/ntosd-dm320/poll/defconfig
+++ b/configs/ntosd-dm320/poll/defconfig
@@ -528,7 +528,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/ntosd-dm320/thttpd/defconfig b/configs/ntosd-dm320/thttpd/defconfig
index df4e96add4c..9295faf4388 100644
--- a/configs/ntosd-dm320/thttpd/defconfig
+++ b/configs/ntosd-dm320/thttpd/defconfig
@@ -657,7 +657,6 @@ CONFIG_EXAMPLE_NETTEST_CLIENTIP=(10<<24|0<<16|0<<8|1)
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -688,7 +687,6 @@ CONFIG_EXAMPLE_NETTEST_CLIENTIP=(10<<24|0<<16|0<<8|1)
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
@@ -698,7 +696,6 @@ CONFIG_NSH_TELNET=n
 CONFIG_NSH_ARCHINIT=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/ntosd-dm320/udp/defconfig b/configs/ntosd-dm320/udp/defconfig
index 00aec20d6e1..cc63323de96 100644
--- a/configs/ntosd-dm320/udp/defconfig
+++ b/configs/ntosd-dm320/udp/defconfig
@@ -528,7 +528,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/ntosd-dm320/uip/defconfig b/configs/ntosd-dm320/uip/defconfig
index 15d3d96482d..8b4d65dcfee 100644
--- a/configs/ntosd-dm320/uip/defconfig
+++ b/configs/ntosd-dm320/uip/defconfig
@@ -529,7 +529,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/nucleus2g/nsh/defconfig b/configs/nucleus2g/nsh/defconfig
index 3b3528b0956..d9433e3c6b5 100755
--- a/configs/nucleus2g/nsh/defconfig
+++ b/configs/nucleus2g/nsh/defconfig
@@ -769,7 +769,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -800,7 +799,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/nucleus2g/ostest/defconfig b/configs/nucleus2g/ostest/defconfig
index 719adae7ea6..c68dd09d0b3 100755
--- a/configs/nucleus2g/ostest/defconfig
+++ b/configs/nucleus2g/ostest/defconfig
@@ -704,7 +704,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -735,7 +734,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/nucleus2g/usbserial/defconfig b/configs/nucleus2g/usbserial/defconfig
index 33b3e32bad7..cdaf254e126 100755
--- a/configs/nucleus2g/usbserial/defconfig
+++ b/configs/nucleus2g/usbserial/defconfig
@@ -705,7 +705,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -736,7 +735,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/nucleus2g/usbstorage/defconfig b/configs/nucleus2g/usbstorage/defconfig
index fc16725f685..58a6d43286b 100755
--- a/configs/nucleus2g/usbstorage/defconfig
+++ b/configs/nucleus2g/usbstorage/defconfig
@@ -705,7 +705,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -736,7 +735,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-lpc1766stk/ftpc/appconfig b/configs/olimex-lpc1766stk/ftpc/appconfig
index e20ef946415..41b612b3ecc 100644
--- a/configs/olimex-lpc1766stk/ftpc/appconfig
+++ b/configs/olimex-lpc1766stk/ftpc/appconfig
@@ -50,3 +50,8 @@ CONFIGURED_APPS += netutils/ftpc
 # Optional networking support
 
 CONFIGURED_APPS += netutils/uiplib
+
+ifeq ($(CONFIG_NSH_TELNET),y)
+CONFIGURED_APPS += netutils/telnetd
+endif
+
diff --git a/configs/olimex-lpc1766stk/ftpc/defconfig b/configs/olimex-lpc1766stk/ftpc/defconfig
index d2949b9aa2a..e8c79d23b05 100755
--- a/configs/olimex-lpc1766stk/ftpc/defconfig
+++ b/configs/olimex-lpc1766stk/ftpc/defconfig
@@ -950,7 +950,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -982,7 +981,6 @@ CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-lpc1766stk/hidkbd/defconfig b/configs/olimex-lpc1766stk/hidkbd/defconfig
index 6d64decaec3..0678befb4a0 100755
--- a/configs/olimex-lpc1766stk/hidkbd/defconfig
+++ b/configs/olimex-lpc1766stk/hidkbd/defconfig
@@ -843,7 +843,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -874,7 +873,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-lpc1766stk/nettest/defconfig b/configs/olimex-lpc1766stk/nettest/defconfig
index d3fb829d672..6ad668f45d6 100755
--- a/configs/olimex-lpc1766stk/nettest/defconfig
+++ b/configs/olimex-lpc1766stk/nettest/defconfig
@@ -796,7 +796,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -827,7 +826,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-lpc1766stk/nsh/appconfig b/configs/olimex-lpc1766stk/nsh/appconfig
index e1a7d522c58..b535ca8696e 100644
--- a/configs/olimex-lpc1766stk/nsh/appconfig
+++ b/configs/olimex-lpc1766stk/nsh/appconfig
@@ -50,6 +50,9 @@ CONFIGURED_APPS += netutils/dhcpc
 CONFIGURED_APPS += netutils/resolv
 CONFIGURED_APPS += netutils/tftpc
 CONFIGURED_APPS += netutils/webclient
+ifeq ($(CONFIG_NSH_TELNET),y)
+CONFIGURED_APPS += netutils/telnetd
+endif
 endif
 
 ifeq ($(CONFIG_ARCH_BUTTONS),y)
diff --git a/configs/olimex-lpc1766stk/nsh/defconfig b/configs/olimex-lpc1766stk/nsh/defconfig
index 157ccf08c66..899da216b25 100755
--- a/configs/olimex-lpc1766stk/nsh/defconfig
+++ b/configs/olimex-lpc1766stk/nsh/defconfig
@@ -891,7 +891,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -923,7 +922,6 @@ CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-lpc1766stk/nx/defconfig b/configs/olimex-lpc1766stk/nx/defconfig
index b2bbd75d450..4ed0b2b1682 100755
--- a/configs/olimex-lpc1766stk/nx/defconfig
+++ b/configs/olimex-lpc1766stk/nx/defconfig
@@ -952,7 +952,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -983,7 +982,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-lpc1766stk/ostest/defconfig b/configs/olimex-lpc1766stk/ostest/defconfig
index 7925624e368..8b77fc16591 100755
--- a/configs/olimex-lpc1766stk/ostest/defconfig
+++ b/configs/olimex-lpc1766stk/ostest/defconfig
@@ -788,7 +788,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -819,7 +818,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-lpc1766stk/slip-httpd/defconfig b/configs/olimex-lpc1766stk/slip-httpd/defconfig
index d6e96418130..b760229d30a 100755
--- a/configs/olimex-lpc1766stk/slip-httpd/defconfig
+++ b/configs/olimex-lpc1766stk/slip-httpd/defconfig
@@ -903,7 +903,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -934,7 +933,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-lpc1766stk/thttpd/defconfig b/configs/olimex-lpc1766stk/thttpd/defconfig
index 78411123f65..558c4530879 100755
--- a/configs/olimex-lpc1766stk/thttpd/defconfig
+++ b/configs/olimex-lpc1766stk/thttpd/defconfig
@@ -895,7 +895,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -926,7 +925,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-lpc1766stk/usbserial/defconfig b/configs/olimex-lpc1766stk/usbserial/defconfig
index 76aa55200f1..07b371c4173 100755
--- a/configs/olimex-lpc1766stk/usbserial/defconfig
+++ b/configs/olimex-lpc1766stk/usbserial/defconfig
@@ -788,7 +788,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -819,7 +818,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-lpc1766stk/usbstorage/defconfig b/configs/olimex-lpc1766stk/usbstorage/defconfig
index 6df0b20d62f..f1d070243ac 100755
--- a/configs/olimex-lpc1766stk/usbstorage/defconfig
+++ b/configs/olimex-lpc1766stk/usbstorage/defconfig
@@ -788,7 +788,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -819,7 +818,6 @@ CONFIG_EXAMPLE_BUTTONS_NAME7="RIGHT"
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-lpc1766stk/wlan/defconfig b/configs/olimex-lpc1766stk/wlan/defconfig
index 7f1ed86e6ad..567796a6f77 100755
--- a/configs/olimex-lpc1766stk/wlan/defconfig
+++ b/configs/olimex-lpc1766stk/wlan/defconfig
@@ -828,7 +828,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -859,7 +858,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-lpc2378/nsh/defconfig b/configs/olimex-lpc2378/nsh/defconfig
index 561096828fb..2b1e389c5b6 100755
--- a/configs/olimex-lpc2378/nsh/defconfig
+++ b/configs/olimex-lpc2378/nsh/defconfig
@@ -354,7 +354,6 @@ CONFIG_EXAMPLES_SERLOOP_BUFIO=
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -385,7 +384,6 @@ CONFIG_EXAMPLES_SERLOOP_BUFIO=
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-lpc2378/ostest/defconfig b/configs/olimex-lpc2378/ostest/defconfig
index f462c21d67d..9384a187701 100755
--- a/configs/olimex-lpc2378/ostest/defconfig
+++ b/configs/olimex-lpc2378/ostest/defconfig
@@ -354,7 +354,6 @@ CONFIG_EXAMPLES_SERLOOP_BUFIO=
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -385,7 +384,6 @@ CONFIG_EXAMPLES_SERLOOP_BUFIO=
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-strp711/nettest/defconfig b/configs/olimex-strp711/nettest/defconfig
index abaf6919534..2fd40f5cd6b 100755
--- a/configs/olimex-strp711/nettest/defconfig
+++ b/configs/olimex-strp711/nettest/defconfig
@@ -664,7 +664,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -695,7 +694,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-strp711/nsh/defconfig b/configs/olimex-strp711/nsh/defconfig
index 67b51d28ecd..614a3151f9b 100644
--- a/configs/olimex-strp711/nsh/defconfig
+++ b/configs/olimex-strp711/nsh/defconfig
@@ -599,7 +599,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -629,7 +628,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/olimex-strp711/ostest/defconfig b/configs/olimex-strp711/ostest/defconfig
index f8c43e1fae3..6ffc7040389 100644
--- a/configs/olimex-strp711/ostest/defconfig
+++ b/configs/olimex-strp711/ostest/defconfig
@@ -599,7 +599,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -630,7 +629,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/pcblogic-pic32mx/nsh/defconfig b/configs/pcblogic-pic32mx/nsh/defconfig
index 8aa8adb9c85..a78f0eac059 100644
--- a/configs/pcblogic-pic32mx/nsh/defconfig
+++ b/configs/pcblogic-pic32mx/nsh/defconfig
@@ -788,7 +788,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -820,7 +819,6 @@ CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/pcblogic-pic32mx/ostest/defconfig b/configs/pcblogic-pic32mx/ostest/defconfig
index 9298dc4bd30..0e30a7fe8cc 100644
--- a/configs/pcblogic-pic32mx/ostest/defconfig
+++ b/configs/pcblogic-pic32mx/ostest/defconfig
@@ -730,7 +730,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -761,7 +760,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/pic32-starterkit/ostest/defconfig b/configs/pic32-starterkit/ostest/defconfig
index 5cb21d07c0c..84de46d2cf3 100644
--- a/configs/pic32-starterkit/ostest/defconfig
+++ b/configs/pic32-starterkit/ostest/defconfig
@@ -817,7 +817,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -848,7 +847,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/pjrc-8051/defconfig b/configs/pjrc-8051/defconfig
index 32341becbb4..add9fa13dc8 100644
--- a/configs/pjrc-8051/defconfig
+++ b/configs/pjrc-8051/defconfig
@@ -345,7 +345,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/qemu-i486/nsh/defconfig b/configs/qemu-i486/nsh/defconfig
index 890d82deaaf..03d0351da60 100644
--- a/configs/qemu-i486/nsh/defconfig
+++ b/configs/qemu-i486/nsh/defconfig
@@ -450,7 +450,6 @@ CONFIG_EXAMPLES_OSTEST_STACKSIZE=4096
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -481,7 +480,6 @@ CONFIG_EXAMPLES_OSTEST_STACKSIZE=4096
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/qemu-i486/ostest/defconfig b/configs/qemu-i486/ostest/defconfig
index 81697467806..d5c1cc494c8 100644
--- a/configs/qemu-i486/ostest/defconfig
+++ b/configs/qemu-i486/ostest/defconfig
@@ -366,7 +366,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/rgmp/arm/default/defconfig b/configs/rgmp/arm/default/defconfig
index 5723276e395..11819ec2fa9 100644
--- a/configs/rgmp/arm/default/defconfig
+++ b/configs/rgmp/arm/default/defconfig
@@ -345,7 +345,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/rgmp/arm/nsh/defconfig b/configs/rgmp/arm/nsh/defconfig
index 25c3ed3b4bb..ec273ff19a0 100644
--- a/configs/rgmp/arm/nsh/defconfig
+++ b/configs/rgmp/arm/nsh/defconfig
@@ -345,7 +345,6 @@ CONFIG_EXAMPLE_NETTEST_CLIENTIP=(192<<24|168<<16|0<<8|106)
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -375,7 +374,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(192<<24|168<<16|10<<8|2)
diff --git a/configs/rgmp/x86/default/defconfig b/configs/rgmp/x86/default/defconfig
index 0e07b7f075a..d0fb56f5d57 100644
--- a/configs/rgmp/x86/default/defconfig
+++ b/configs/rgmp/x86/default/defconfig
@@ -345,7 +345,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/rgmp/x86/nsh/defconfig b/configs/rgmp/x86/nsh/defconfig
index 89bc4664355..fce0c7c751c 100644
--- a/configs/rgmp/x86/nsh/defconfig
+++ b/configs/rgmp/x86/nsh/defconfig
@@ -345,7 +345,6 @@ CONFIG_EXAMPLE_NETTEST_CLIENTIP=(192<<24|168<<16|0<<8|106)
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -375,7 +374,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(192<<24|168<<16|10<<8|2)
diff --git a/configs/sam3u-ek/knsh/defconfig b/configs/sam3u-ek/knsh/defconfig
index 1cc6d976f6d..f415e355e2e 100755
--- a/configs/sam3u-ek/knsh/defconfig
+++ b/configs/sam3u-ek/knsh/defconfig
@@ -775,7 +775,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -806,7 +805,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/sam3u-ek/nsh/defconfig b/configs/sam3u-ek/nsh/defconfig
index 4c4ed90b29d..5d184d11eec 100755
--- a/configs/sam3u-ek/nsh/defconfig
+++ b/configs/sam3u-ek/nsh/defconfig
@@ -745,7 +745,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -776,7 +775,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/sam3u-ek/nx/defconfig b/configs/sam3u-ek/nx/defconfig
index 5f0fa1854ee..d003a3850c8 100755
--- a/configs/sam3u-ek/nx/defconfig
+++ b/configs/sam3u-ek/nx/defconfig
@@ -754,7 +754,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -785,7 +784,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/sam3u-ek/ostest/defconfig b/configs/sam3u-ek/ostest/defconfig
index a0610a66ffa..23a9d0efa83 100755
--- a/configs/sam3u-ek/ostest/defconfig
+++ b/configs/sam3u-ek/ostest/defconfig
@@ -743,7 +743,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -774,7 +773,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/sam3u-ek/touchscreen/defconfig b/configs/sam3u-ek/touchscreen/defconfig
index 75ecc55c72a..a9ca4c4e9f1 100755
--- a/configs/sam3u-ek/touchscreen/defconfig
+++ b/configs/sam3u-ek/touchscreen/defconfig
@@ -798,7 +798,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -832,7 +831,6 @@ CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/sim/mount/defconfig b/configs/sim/mount/defconfig
index ee37111d4b3..529e5f9cf05 100644
--- a/configs/sim/mount/defconfig
+++ b/configs/sim/mount/defconfig
@@ -342,7 +342,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/sim/nettest/defconfig b/configs/sim/nettest/defconfig
index bb00f3f591a..61d44376f31 100644
--- a/configs/sim/nettest/defconfig
+++ b/configs/sim/nettest/defconfig
@@ -342,7 +342,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/sim/nsh/defconfig b/configs/sim/nsh/defconfig
index 010e08c26f5..c7f34c4eec9 100644
--- a/configs/sim/nsh/defconfig
+++ b/configs/sim/nsh/defconfig
@@ -386,7 +386,6 @@ CONFIG_EXAMPLES_OSTEST_STACKSIZE=8192
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -414,7 +413,6 @@ CONFIG_EXAMPLES_OSTEST_STACKSIZE=8192
 CONFIG_NSH_FILEIOSIZE=1024
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=80
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/sim/nsh2/defconfig b/configs/sim/nsh2/defconfig
index 31401404418..0aca02af7ad 100644
--- a/configs/sim/nsh2/defconfig
+++ b/configs/sim/nsh2/defconfig
@@ -571,7 +571,6 @@ CONFIG_EXAMPLES_OSTEST_STACKSIZE=8192
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -603,7 +602,6 @@ CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_FILEIOSIZE=1024
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=80
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/sim/nx/defconfig b/configs/sim/nx/defconfig
index e70163be706..ee89a97d755 100644
--- a/configs/sim/nx/defconfig
+++ b/configs/sim/nx/defconfig
@@ -438,7 +438,6 @@ CONFIG_EXAMPLES_OSTEST_STACKSIZE=8192
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -466,7 +465,6 @@ CONFIG_EXAMPLES_OSTEST_STACKSIZE=8192
 CONFIG_NSH_FILEIOSIZE=1024
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=80
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/sim/nx11/defconfig b/configs/sim/nx11/defconfig
index 420231d48eb..26c26c60d64 100644
--- a/configs/sim/nx11/defconfig
+++ b/configs/sim/nx11/defconfig
@@ -444,7 +444,6 @@ CONFIG_EXAMPLES_OSTEST_STACKSIZE=8192
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -472,7 +471,6 @@ CONFIG_EXAMPLES_OSTEST_STACKSIZE=8192
 CONFIG_NSH_FILEIOSIZE=1024
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=80
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/sim/nxffs/defconfig b/configs/sim/nxffs/defconfig
index 2030608cd1e..049ba42ba4c 100644
--- a/configs/sim/nxffs/defconfig
+++ b/configs/sim/nxffs/defconfig
@@ -344,7 +344,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/sim/ostest/defconfig b/configs/sim/ostest/defconfig
index df9bdf8258c..a0ea71557e8 100644
--- a/configs/sim/ostest/defconfig
+++ b/configs/sim/ostest/defconfig
@@ -342,7 +342,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/sim/pashello/defconfig b/configs/sim/pashello/defconfig
index c00e25b15ee..ec0aa67eb33 100644
--- a/configs/sim/pashello/defconfig
+++ b/configs/sim/pashello/defconfig
@@ -337,7 +337,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/sim/touchscreen/defconfig b/configs/sim/touchscreen/defconfig
index 350502ef202..982bb29d140 100644
--- a/configs/sim/touchscreen/defconfig
+++ b/configs/sim/touchscreen/defconfig
@@ -445,7 +445,6 @@ CONFIG_EXAMPLES_OSTEST_STACKSIZE=8192
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -473,7 +472,6 @@ CONFIG_EXAMPLES_OSTEST_STACKSIZE=8192
 CONFIG_NSH_FILEIOSIZE=1024
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=80
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/skp16c26/ostest/defconfig b/configs/skp16c26/ostest/defconfig
index fca9dc7e1cf..8f9c8b7efc3 100644
--- a/configs/skp16c26/ostest/defconfig
+++ b/configs/skp16c26/ostest/defconfig
@@ -516,7 +516,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/stm3210e-eval/RIDE/defconfig b/configs/stm3210e-eval/RIDE/defconfig
index f91c1c1451a..e0e09ed9f21 100755
--- a/configs/stm3210e-eval/RIDE/defconfig
+++ b/configs/stm3210e-eval/RIDE/defconfig
@@ -751,7 +751,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -782,7 +781,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3210e-eval/buttons/defconfig b/configs/stm3210e-eval/buttons/defconfig
index ed0ffaacd80..53627e4916e 100644
--- a/configs/stm3210e-eval/buttons/defconfig
+++ b/configs/stm3210e-eval/buttons/defconfig
@@ -786,7 +786,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -817,7 +816,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3210e-eval/composite/defconfig b/configs/stm3210e-eval/composite/defconfig
index 7fb3b3ae811..e9fad97dc3d 100755
--- a/configs/stm3210e-eval/composite/defconfig
+++ b/configs/stm3210e-eval/composite/defconfig
@@ -916,7 +916,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -950,7 +949,6 @@ CONFIG_NSH_BUILTIN_APPS=n
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3210e-eval/nsh/defconfig b/configs/stm3210e-eval/nsh/defconfig
index 826e2ad52d7..189cb005f40 100755
--- a/configs/stm3210e-eval/nsh/defconfig
+++ b/configs/stm3210e-eval/nsh/defconfig
@@ -770,7 +770,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -802,7 +801,6 @@ CONFIG_NSH_BUILTIN_APPS=n
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3210e-eval/nsh2/defconfig b/configs/stm3210e-eval/nsh2/defconfig
index 2a97d499bda..369a1fcc811 100644
--- a/configs/stm3210e-eval/nsh2/defconfig
+++ b/configs/stm3210e-eval/nsh2/defconfig
@@ -1040,7 +1040,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -1074,7 +1073,6 @@ CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3210e-eval/nx/defconfig b/configs/stm3210e-eval/nx/defconfig
index 3378a4a24b2..de6f046dfae 100644
--- a/configs/stm3210e-eval/nx/defconfig
+++ b/configs/stm3210e-eval/nx/defconfig
@@ -945,7 +945,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -978,7 +977,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3210e-eval/nxlines/defconfig b/configs/stm3210e-eval/nxlines/defconfig
index e15782a914c..167e0cb5494 100644
--- a/configs/stm3210e-eval/nxlines/defconfig
+++ b/configs/stm3210e-eval/nxlines/defconfig
@@ -944,7 +944,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -977,7 +976,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3210e-eval/nxtext/defconfig b/configs/stm3210e-eval/nxtext/defconfig
index 9484f3773cc..fb77f70826e 100644
--- a/configs/stm3210e-eval/nxtext/defconfig
+++ b/configs/stm3210e-eval/nxtext/defconfig
@@ -944,7 +944,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -977,7 +976,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3210e-eval/ostest/defconfig b/configs/stm3210e-eval/ostest/defconfig
index a8d3bcb82d1..508f9a9f07e 100755
--- a/configs/stm3210e-eval/ostest/defconfig
+++ b/configs/stm3210e-eval/ostest/defconfig
@@ -787,7 +787,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -818,7 +817,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3210e-eval/usbserial/defconfig b/configs/stm3210e-eval/usbserial/defconfig
index aa8f76adfd2..7cfe3101543 100755
--- a/configs/stm3210e-eval/usbserial/defconfig
+++ b/configs/stm3210e-eval/usbserial/defconfig
@@ -841,7 +841,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -872,7 +871,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3210e-eval/usbstorage/defconfig b/configs/stm3210e-eval/usbstorage/defconfig
index 53f09060cd5..326efcb4c2e 100755
--- a/configs/stm3210e-eval/usbstorage/defconfig
+++ b/configs/stm3210e-eval/usbstorage/defconfig
@@ -777,7 +777,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -811,7 +810,6 @@ CONFIG_NSH_BUILTIN_APPS=n
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3240g-eval/dhcpd/defconfig b/configs/stm3240g-eval/dhcpd/defconfig
index a0f42c3c814..8fe199c99f3 100755
--- a/configs/stm3240g-eval/dhcpd/defconfig
+++ b/configs/stm3240g-eval/dhcpd/defconfig
@@ -1120,7 +1120,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -1152,7 +1151,6 @@ CONFIG_NSH_BUILTIN_APPS=n
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3240g-eval/nettest/defconfig b/configs/stm3240g-eval/nettest/defconfig
index 46b537bde48..efa32516ff3 100755
--- a/configs/stm3240g-eval/nettest/defconfig
+++ b/configs/stm3240g-eval/nettest/defconfig
@@ -1113,7 +1113,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -1145,7 +1144,6 @@ CONFIG_NSH_BUILTIN_APPS=n
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3240g-eval/nsh/appconfig b/configs/stm3240g-eval/nsh/appconfig
index a3bf2422c11..94f0c53f996 100644
--- a/configs/stm3240g-eval/nsh/appconfig
+++ b/configs/stm3240g-eval/nsh/appconfig
@@ -42,14 +42,19 @@ CONFIGURED_APPS += examples/nsh
 CONFIGURED_APPS += system/readline
 CONFIGURED_APPS += nshlib
 
-# Applications configured as an NX built-in commands
+# Networking libraries
 
 ifeq ($(CONFIG_NET),y)
 CONFIGURED_APPS += netutils/uiplib
 CONFIGURED_APPS += netutils/resolv
 CONFIGURED_APPS += netutils/webclient
 CONFIGURED_APPS += netutils/tftpc
+ifeq ($(CONFIG_NSH_TELNET),y)
+CONFIGURED_APPS += netutils/telnetd
 endif
+endif
+
+# Applications configured as an NX built-in commands
 
 ifeq ($(CONFIG_ADC),y)
 CONFIGURED_APPS += examples/adc
diff --git a/configs/stm3240g-eval/nsh/defconfig b/configs/stm3240g-eval/nsh/defconfig
index 60b1204ef9a..b63fa3d9e51 100755
--- a/configs/stm3240g-eval/nsh/defconfig
+++ b/configs/stm3240g-eval/nsh/defconfig
@@ -1157,7 +1157,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -1189,7 +1188,6 @@ CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3240g-eval/ostest/defconfig b/configs/stm3240g-eval/ostest/defconfig
index 52e20379854..2a5443bcb5f 100755
--- a/configs/stm3240g-eval/ostest/defconfig
+++ b/configs/stm3240g-eval/ostest/defconfig
@@ -1110,7 +1110,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -1144,7 +1143,6 @@ CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm3240g-eval/telnetd/defconfig b/configs/stm3240g-eval/telnetd/defconfig
index b4fb21e68dc..b1b3d806e10 100755
--- a/configs/stm3240g-eval/telnetd/defconfig
+++ b/configs/stm3240g-eval/telnetd/defconfig
@@ -1140,7 +1140,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -1172,7 +1171,6 @@ CONFIG_NSH_BUILTIN_APPS=n
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm32f4discovery/nsh/defconfig b/configs/stm32f4discovery/nsh/defconfig
index bfa6f8df656..7bd0cec3281 100755
--- a/configs/stm32f4discovery/nsh/defconfig
+++ b/configs/stm32f4discovery/nsh/defconfig
@@ -1111,7 +1111,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -1143,7 +1142,6 @@ CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/stm32f4discovery/ostest/defconfig b/configs/stm32f4discovery/ostest/defconfig
index c28ebaa61ee..3d174535f68 100755
--- a/configs/stm32f4discovery/ostest/defconfig
+++ b/configs/stm32f4discovery/ostest/defconfig
@@ -1100,7 +1100,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -1134,7 +1133,6 @@ CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/sure-pic32mx/nsh/defconfig b/configs/sure-pic32mx/nsh/defconfig
index 7c40c0ee896..1f7400c379b 100644
--- a/configs/sure-pic32mx/nsh/defconfig
+++ b/configs/sure-pic32mx/nsh/defconfig
@@ -861,7 +861,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -893,7 +892,6 @@ CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/sure-pic32mx/ostest/defconfig b/configs/sure-pic32mx/ostest/defconfig
index 63b4c4ed2ef..b54151b80fc 100644
--- a/configs/sure-pic32mx/ostest/defconfig
+++ b/configs/sure-pic32mx/ostest/defconfig
@@ -730,7 +730,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -761,7 +760,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/teensy/hello/defconfig b/configs/teensy/hello/defconfig
index 99f7232e9a1..cda9813aa4e 100644
--- a/configs/teensy/hello/defconfig
+++ b/configs/teensy/hello/defconfig
@@ -652,7 +652,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -683,7 +682,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=1024
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/teensy/nsh/defconfig b/configs/teensy/nsh/defconfig
index 745860dfb40..4b9058ccd50 100755
--- a/configs/teensy/nsh/defconfig
+++ b/configs/teensy/nsh/defconfig
@@ -680,7 +680,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -711,7 +710,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=512
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=y
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/teensy/usbstorage/defconfig b/configs/teensy/usbstorage/defconfig
index c9521c3b7e2..076281a60b7 100755
--- a/configs/teensy/usbstorage/defconfig
+++ b/configs/teensy/usbstorage/defconfig
@@ -684,7 +684,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -715,7 +714,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=512
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=y
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/twr-k60n512/nsh/defconfig b/configs/twr-k60n512/nsh/defconfig
index 0dab4d4c6c8..98f548a4721 100644
--- a/configs/twr-k60n512/nsh/defconfig
+++ b/configs/twr-k60n512/nsh/defconfig
@@ -804,7 +804,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -836,7 +835,6 @@ CONFIG_NSH_BUILTIN_APPS=n
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/twr-k60n512/ostest/defconfig b/configs/twr-k60n512/ostest/defconfig
index 4b2cf9a10a5..e97b9d9d6cb 100644
--- a/configs/twr-k60n512/ostest/defconfig
+++ b/configs/twr-k60n512/ostest/defconfig
@@ -799,7 +799,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -830,7 +829,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/us7032evb1/nsh/defconfig b/configs/us7032evb1/nsh/defconfig
index 76495ade01e..2c8e4a20199 100644
--- a/configs/us7032evb1/nsh/defconfig
+++ b/configs/us7032evb1/nsh/defconfig
@@ -520,7 +520,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -548,7 +547,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/us7032evb1/ostest/defconfig b/configs/us7032evb1/ostest/defconfig
index 397a80690b5..9203071a04c 100644
--- a/configs/us7032evb1/ostest/defconfig
+++ b/configs/us7032evb1/ostest/defconfig
@@ -520,7 +520,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -548,7 +547,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/vsn/nsh/defconfig b/configs/vsn/nsh/defconfig
index f06b915657e..9b326685560 100755
--- a/configs/vsn/nsh/defconfig
+++ b/configs/vsn/nsh/defconfig
@@ -765,7 +765,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -799,7 +798,6 @@ CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
-CONFIG_NSH_STACKSIZE=2048
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/xtrs/nsh/defconfig b/configs/xtrs/nsh/defconfig
index 12a73fe6e10..c7c4e48a78c 100644
--- a/configs/xtrs/nsh/defconfig
+++ b/configs/xtrs/nsh/defconfig
@@ -341,7 +341,6 @@ CONFIG_NET_RESOLV_ENTRIES=4
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -369,7 +368,6 @@ CONFIG_NET_RESOLV_ENTRIES=4
 CONFIG_NSH_FILEIOSIZE=1024
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=40
-CONFIG_NSH_STACKSIZE=1024
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/xtrs/ostest/defconfig b/configs/xtrs/ostest/defconfig
index 974c2a73153..582caa1c702 100644
--- a/configs/xtrs/ostest/defconfig
+++ b/configs/xtrs/ostest/defconfig
@@ -341,7 +341,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/xtrs/pashello/defconfig b/configs/xtrs/pashello/defconfig
index 8a300143861..a05103b82c4 100644
--- a/configs/xtrs/pashello/defconfig
+++ b/configs/xtrs/pashello/defconfig
@@ -341,7 +341,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/z16f2800100zcog/ostest/defconfig b/configs/z16f2800100zcog/ostest/defconfig
index 89e3d163d10..c8fb6d64d86 100644
--- a/configs/z16f2800100zcog/ostest/defconfig
+++ b/configs/z16f2800100zcog/ostest/defconfig
@@ -369,7 +369,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/z16f2800100zcog/pashello/defconfig b/configs/z16f2800100zcog/pashello/defconfig
index 3c89dfc07ae..d7639980fe8 100644
--- a/configs/z16f2800100zcog/pashello/defconfig
+++ b/configs/z16f2800100zcog/pashello/defconfig
@@ -369,7 +369,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/z80sim/nsh/defconfig b/configs/z80sim/nsh/defconfig
index da704a791f7..606bea4fe16 100644
--- a/configs/z80sim/nsh/defconfig
+++ b/configs/z80sim/nsh/defconfig
@@ -331,7 +331,6 @@ CONFIG_NET_RESOLV_ENTRIES=4
 # CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
 # CONFIG_NSH_STRERROR - Use strerror(errno)
 # CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_STACKSIZE - Stack size to use for new threads.
 # CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
 # CONFIG_NSH_DISABLESCRIPT - Disable scripting support
 # CONFIG_NSH_DISABLEBG - Disable background commands
@@ -359,7 +358,6 @@ CONFIG_NET_RESOLV_ENTRIES=4
 CONFIG_NSH_FILEIOSIZE=1024
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=40
-CONFIG_NSH_STACKSIZE=1024
 CONFIG_NSH_NESTDEPTH=3
 CONFIG_NSH_DISABLESCRIPT=n
 CONFIG_NSH_DISABLEBG=n
diff --git a/configs/z80sim/ostest/defconfig b/configs/z80sim/ostest/defconfig
index e66e345915b..e32d2612b6d 100644
--- a/configs/z80sim/ostest/defconfig
+++ b/configs/z80sim/ostest/defconfig
@@ -331,7 +331,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/z80sim/pashello/defconfig b/configs/z80sim/pashello/defconfig
index 2a397791944..533bc4f96cb 100644
--- a/configs/z80sim/pashello/defconfig
+++ b/configs/z80sim/pashello/defconfig
@@ -331,7 +331,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=4096
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/z8encore000zco/ostest/defconfig b/configs/z8encore000zco/ostest/defconfig
index d1cca6fe483..8caa8dfb4f1 100644
--- a/configs/z8encore000zco/ostest/defconfig
+++ b/configs/z8encore000zco/ostest/defconfig
@@ -370,7 +370,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=512
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
diff --git a/configs/z8f64200100kit/ostest/defconfig b/configs/z8f64200100kit/ostest/defconfig
index 326e3e92d03..a5c501ec8be 100644
--- a/configs/z8f64200100kit/ostest/defconfig
+++ b/configs/z8f64200100kit/ostest/defconfig
@@ -370,7 +370,6 @@ CONFIG_NSH_CONSOLE=y
 CONFIG_NSH_TELNET=n
 CONFIG_NSH_IOBUFFER_SIZE=512
 CONFIG_NSH_CMD_SIZE=40
-CONFIG_NSH_STACKSIZE=512
 CONFIG_NSH_DHCPC=n
 CONFIG_NSH_NOMAC=n
 CONFIG_NSH_IPADDR=(10<<24|0<<16|0<<8|2)