diff --git a/study/kernel/00-DESCRIPTION/MEMORY_MANAGER.md b/study/kernel/00-DESCRIPTION/MEMORY_MANAGER.md old mode 100755 new mode 100644 diff --git a/study/kernel/00-DESCRIPTION/README.md b/study/kernel/00-DESCRIPTION/README.md old mode 100755 new mode 100644 diff --git a/study/kernel/00-DESCRIPTION/SCHEDULER.md b/study/kernel/00-DESCRIPTION/SCHEDULER.md old mode 100755 new mode 100644