On Mon, Oct 30, 2023 at 6:59 PM Ronald Wahl <[email protected]> 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 <[email protected]>
Looks correct to me:
Reviewed-by: Linus Walleij <[email protected]>
Yours,
Linus Walleij
On 01.11.23 22:59, Linus Walleij wrote:
> [You don't often get email from [email protected]. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
>
> On Mon, Oct 30, 2023 at 6:59 PM Ronald Wahl <[email protected]> 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 <[email protected]>
>
> Looks correct to me:
> Reviewed-by: Linus Walleij <[email protected]>
Unfortunately it causes a memory leak because I forgot to call
put_task_stack(task) now. Should I post v2 or a separate patch?
- ron
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On Mon, Dec 11, 2023 at 2:31 PM Ronald Wahl <[email protected]> wrote:
> On 01.11.23 22:59, Linus Walleij wrote:
> > [You don't often get email from [email protected]. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
> >
> > On Mon, Oct 30, 2023 at 6:59 PM Ronald Wahl <[email protected]> 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 <[email protected]>
> >
> > Looks correct to me:
> > Reviewed-by: Linus Walleij <[email protected]>
>
> Unfortunately it causes a memory leak because I forgot to call
> put_task_stack(task) now. Should I post v2 or a separate patch?
Post a v2 I didn't see that anyone applied it?
Yours,
Linus Walleij