Re: [PATCH] mm,page_alloc: Serialize warn_alloc() if schedulable.

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On Sun, Jun 4, 2017 at 1:58 AM, Tetsuo Handa
<penguin-kernel@xxxxxxxxxxxxxxxxxxx> wrote:
> You can retry with my kmallocwd patch shown bottom. An example output is
> at http://I-love.SAKURA.ne.jp/tmp/sample-serial.log .
>
> Of course, kmallocwd can gather only basic information. You might need to
> gather more information by e.g. enabling tracepoints after analyzing basic
> information.

Sure, since it is a debugging patch we definitely can try it.


> Since you said
>
>   The log I sent is partial, but that is already all what we captured,
>   I can't find more in kern.log due to log rotation.
>
> you meant "the log I captured is an incomplete one", don't you?

Right, sorry for my stupid typo.

>
> Below is kmallocwd patch backpoated for 4.9.30 kernel from
> http://lkml.kernel.org/r/1495331504-12480-1-git-send-email-penguin-kernel@xxxxxxxxxxxxxxxxxxx .
> Documentation/malloc-watchdog.txt part is stripped in order to reduce lines.

Will do. But can't guarantee that we can reproduce it. ;)

Thanks a lot!

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