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sched: avoid dumping raw memory at address 0 for tasks without kstack

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dump_stacks() only checked kernelstack_sp != 0 || force, so for tasks
with no kernel stack (e.g. idle, kernelstack_base == 0) the force path
passed base 0 to dump_stackinfo() and dumped raw memory from address 0,
triggering a secondary fault that truncated the panic log.  Guard with
kernelstack_base != 0.

Signed-off-by: liang.huang <liang.huang@houmo.ai>
This commit is contained in:
liang.huang
2026-07-20 20:57:45 -03:00
committed by Alan C. Assis
parent 5d4f776cdc
commit 059176fe64
1 changed files with 5 additions and 1 deletions
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sched/misc/assert.c
+5 -1
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@@ -325,7 +325,11 @@ static void dump_stacks(FAR struct tcb_s *rtcb, uintptr_t sp)
#endif
#ifdef CONFIG_ARCH_KERNEL_STACK
if (kernelstack_sp != 0 || force)
/* kernelstack_base is NULL for tasks with no kernel stack (e.g. idle).
* dump_stackinfo() would then dump raw memory starting at address 0.
*/
if (kernelstack_base != 0 && (kernelstack_sp != 0 || force))
{
dump_stackinfo("Kernel",
kernelstack_sp,