linux-kernel - Re: x86: warning in unwind_get_return

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Message-ID: <CAAeHK+yPSeO2PWQtsQs_7FQ0PeGzs4PgK_89UM8G=hFJrVzH1g@mail.gmail.com>
Date:   Wed, 21 Dec 2016 13:46:36 +0100
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     syzkaller <syzkaller@...glegroups.com>
Cc:     Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        kasan-dev <kasan-dev@...glegroups.com>, linux-mm@...ck.org,
        LKML <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Kostya Serebryany <kcc@...gle.com>
Subject: Re: x86: warning in unwind_get_return_address

On Wed, Dec 21, 2016 at 12:36 AM, Josh Poimboeuf <jpoimboe@...hat.com> wrote:
>
> Thanks.  Looking at the stack trace, my guess is that an interrupt hit
> while running in generated BPF code, and the unwinder got confused
> because regs->ip points to the generated code.  I may need to disable
> that warning until we figure out a better solution.
>
> Can you share your .config file?

Sure, attached.

>
> --
> Josh
>
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