Re: [PATCH] stacktrace: check whether task has a stack before saving it

[Linus Walleij]

On Mon, Oct 30, 2023 at 6:59 PM Ronald Wahl <rwahl@xxxxxx> wrote:

> I encountered a crash on ARM32 when trying to dump the stack of some
> zombie process. This is caused by a missing check whether the task
> actually has a valid stack. This commit adds this check.
>
> Commit 214d8ca6ee85 ("stacktrace: Provide common infrastructure")
> introduced this check for platforms that define CONFIG_ARCH_STACKWALK
> but ARM32 is not one of them.
>
> Signed-off-by: Ronald Wahl <ronald.wahl@xxxxxxxxxxx>

Looks correct to me:
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

Yours,
Linus Walleij