davids5 commented on a change in pull request #1369:
URL: https://github.com/apache/incubator-nuttx/pull/1369#discussion_r449884524



##########
File path: arch/arm/src/arm/arm_initialstate.c
##########
@@ -52,13 +52,7 @@
  * Pre-processor Definitions
  ****************************************************************************/
 
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
+#define IDLETHREAD_STACKMARGIN    128

Review comment:
       eeh that is why the asm code was used to do the init it. Originally we 
took the address of the last var on the stack in the called routine and wrote 
up to. This margin think could bite us.




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