From: Will Deacon <will@kernel.org>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: syzbot <syzbot+e6bda7e03e329ed0b1db@syzkaller.appspotmail.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Will Deacon <will.deacon@arm.com>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk
Subject: Re: [syzbot] upstream test error: WARNING in __do_kernel_fault
Date: Tue, 21 Sep 2021 13:41:39 +0100 [thread overview]
Message-ID: <20210921124138.GA13537@willie-the-truck> (raw)
In-Reply-To: <CACT4Y+YLEUuuNQ+2TOEevwNRvPHp-wT4W+dXAdKds_kf+upQbQ@mail.gmail.com>
On Fri, Sep 17, 2021 at 10:20:40AM +0200, Dmitry Vyukov wrote:
> On Mon, 6 Sept 2021 at 11:55, syzbot
> <syzbot+e6bda7e03e329ed0b1db@syzkaller.appspotmail.com> wrote:
> >
> > Hello,
> >
> > syzbot found the following issue on:
> >
> > HEAD commit: f1583cb1be35 Merge tag 'linux-kselftest-next-5.15-rc1' of ..
> > git tree: upstream
> > console output: https://syzkaller.appspot.com/x/log.txt?x=17756315300000
> > kernel config: https://syzkaller.appspot.com/x/.config?x=5fe535c85e8d7384
> > dashboard link: https://syzkaller.appspot.com/bug?extid=e6bda7e03e329ed0b1db
> > compiler: aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1
> > userspace arch: arm64
> >
> > IMPORTANT: if you fix the issue, please add the following tag to the commit:
> > Reported-by: syzbot+e6bda7e03e329ed0b1db@syzkaller.appspotmail.com
>
> +Will, you added this WARNING in 42f91093b04333.
> This now crashes periodically on syzbot.
I'm still inclined to chalk this one down to a QEMU bug. We're not seeing it
anywhere else, and last time you looked at it I seem to remember that it
depended upon QEMU configuration [1].
Will
[1] https://lore.kernel.org/all/CAAeHK+wDz8aSLyjq1b=q3+HG9aJXxwYR6+gN_fTttMN5osM5gg@mail.gmail.com/
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prev parent reply other threads:[~2021-09-21 12:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <000000000000f8d56e05cb50a541@google.com>
2021-09-17 8:20 ` [syzbot] upstream test error: WARNING in __do_kernel_fault Dmitry Vyukov
2021-09-21 12:41 ` Will Deacon [this message]
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