Re: [PATCH v2 2/2] x86/process: Silence KASAN warnings in get_wchan()

From	Ingo Molnar <mingo@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2 2/2] x86/process: Silence KASAN warnings in get_wchan()
Date	2015-10-13 16:30 +0200
Message-ID	<qj8Kv-KS-33@gated-at.bofh.it> (permalink)
References	<qj721-6Fq-17@gated-at.bofh.it> <qj721-6Fq-15@gated-at.bofh.it> <qj87M-8dT-17@gated-at.bofh.it> <qj8hs-8pd-15@gated-at.bofh.it>
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* Dmitry Vyukov <dvyukov@google.com> wrote:

> > Hm, exactly how is the 'red zone' defined? Is this about the current task 
> > mostly, or when doing get_wchan() on other tasks?
> 
> When code is compiled with AddressSanitizer, most variables on stack have 
> redzones around them, on entry function "poisons" these redzones (any accesses 
> to them will be flagged), on exit function "unpoisons" these redzones.

I see, fair enough!

This series looks good to me, modulo the small documentation nit I had about the 
first patch.

Thanks,

	Ingo
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[PATCH v2 2/2] x86/process: Silence KASAN warnings in get_wchan() Andrey Ryabinin <aryabinin@virtuozzo.com> - 2015-10-13 14:40 +0200
  Re: [PATCH v2 2/2] x86/process: Silence KASAN warnings in get_wchan() Ingo Molnar <mingo@kernel.org> - 2015-10-13 15:50 +0200
    Re: [PATCH v2 2/2] x86/process: Silence KASAN warnings in get_wchan() Andrey Ryabinin <aryabinin@virtuozzo.com> - 2015-10-13 16:00 +0200
    Re: [PATCH v2 2/2] x86/process: Silence KASAN warnings in get_wchan() Dmitry Vyukov <dvyukov@google.com> - 2015-10-13 16:00 +0200
      Re: [PATCH v2 2/2] x86/process: Silence KASAN warnings in get_wchan() Andrey Ryabinin <aryabinin@virtuozzo.com> - 2015-10-13 16:20 +0200
      Re: [PATCH v2 2/2] x86/process: Silence KASAN warnings in get_wchan() Ingo Molnar <mingo@kernel.org> - 2015-10-13 16:30 +0200

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