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smp: fix pid assign issue

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example:lack pid:4 when CONFIG_SMP_NCPUS=4
nsh> ps
  PID  PPID CPU PRI POLICY   TYPE    NPX STATE    EVENT     SIGMASK   STACK COMMAND
    0     0   0   0 FIFO     Kthread N-- Assigned           00000000 000944 CPU0 IDLE
    1     0   1   0 FIFO     Kthread N-- Running            00000000 000000 CPU1 IDLE
    2     0   2   0 FIFO     Kthread N-- Running            00000000 000000 CPU2 IDLE
    3     0   3   0 FIFO     Kthread N-- Running            00000000 000000 CPU3 IDLE
    5     0   0 100 FIFO     Task    --- Running            00000000 065504 init

Change-Id: I30a7e50c418332ec89edfd42473d9bebb2b02bbc
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
This commit is contained in:
Jiuzhu Dong
2021-07-08 14:12:12 +08:00
parent 1ecbc99b21
commit 2d9b18a8ea
1 changed files with 6 additions and 5 deletions
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sched/init/nx_start.c
+6 -5
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@@ -391,7 +391,6 @@ void nx_start(void)
/* Initialize the logic that determine unique process IDs. */
g_lastpid = 0;
for (i = 0; i < CONFIG_MAX_TASKS; i++)
{
g_pidhash[i].tcb = NULL;
@@ -401,7 +400,7 @@ void nx_start(void)
/* Initialize the IDLE task TCB *******************************************/
#ifdef CONFIG_SMP
for (cpu = 0; cpu < CONFIG_SMP_NCPUS; cpu++, g_lastpid++)
for (cpu = 0; cpu < CONFIG_SMP_NCPUS; cpu++)
#endif
{
FAR dq_queue_t *tasklist;
@@ -409,9 +408,9 @@ void nx_start(void)
/* Assign the process ID(s) of ZERO to the idle task(s) */
hashndx = PIDHASH(g_lastpid);
hashndx = PIDHASH(cpu);
g_pidhash[hashndx].tcb = &g_idletcb[cpu].cmn;
g_pidhash[hashndx].pid = g_lastpid;
g_pidhash[hashndx].pid = cpu;
/* Initialize a TCB for this thread of execution. NOTE: The default
* value for most components of the g_idletcb are zero. The entire
@@ -421,7 +420,7 @@ void nx_start(void)
*/
memset((void *)&g_idletcb[cpu], 0, sizeof(struct task_tcb_s));
g_idletcb[cpu].cmn.pid = g_lastpid;
g_idletcb[cpu].cmn.pid = cpu;
g_idletcb[cpu].cmn.task_state = TSTATE_TASK_RUNNING;
/* Set the entry point. This is only for debug purposes. NOTE: that
@@ -523,6 +522,8 @@ void nx_start(void)
}
}
g_lastpid = cpu ? cpu -1 : 0;
/* Task lists are initialized */
g_nx_initstate = OSINIT_TASKLISTS;