linux-kernel - Re: linux-next build error (3)

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Message-ID: <CACT4Y+bhQGLGPKSy48JJ8pHai3C=CcLC4B0Xa0ODXwyvDsisFw@mail.gmail.com>
Date:   Mon, 23 Jul 2018 13:39:33 +0200
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     syzbot <syzbot+9118f0a7ae77f4eee4a9@...kaller.appspotmail.com>,
        harry.wentland@....com, alexander.deucher@....com,
        Matthias Kaehlcke <mka@...omium.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>
Subject: Re: linux-next build error (3)

On Mon, Jul 23, 2018 at 1:38 PM, syzbot
<syzbot+9118f0a7ae77f4eee4a9@...kaller.appspotmail.com> wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit:    6d93abaf4c5b Add linux-next specific files for 20180723
> git tree:       linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=10e02f0c400000
> dashboard link: https://syzkaller.appspot.com/bug?extid=9118f0a7ae77f4eee4a9
> compiler:       gcc (GCC) 8.0.1 20180413 (experimental)
>
> Unfortunately, I don't have any reproducer for this crash yet.
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+9118f0a7ae77f4eee4a9@...kaller.appspotmail.com

+Matthias,

I guess this is caused by one of the following commits, and probably
affects KASAN and similar tools:

commit cc32ad8f559c36ca2433d282aff690a6842a3a27
Date:   Thu Feb 8 12:53:16 2018 -0800

    amdgpu/dc/calcs: Support clang option for stack alignment

commit 37172013fa2e527735ec9eda51a11cfea3af0ff1
Date:   Thu Feb 8 12:53:14 2018 -0800

    amdgpu/dc/calcs: Consolidate redundant CFLAGS



>
> ---
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>
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