netdev - Re: WARNING in add_event_to

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Message-ID: <CACT4Y+Z2M3p+26KROAAnGH-HuuWZdu8Cx1TrN7YhWTh9Exj+rQ@mail.gmail.com>
Date:   Fri, 10 Jan 2020 15:48:34 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     syzbot <syzbot+704bfe2c7d156640ad7a@...kaller.appspotmail.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        arvid.brodin@...en.se, Alexei Starovoitov <ast@...nel.org>,
        bpf <bpf@...r.kernel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        David Miller <davem@...emloft.net>,
        Josef Bacik <jbacik@...com>, jolsa@...hat.com,
        Martin KaFai Lau <kafai@...com>, kernel-team@...com,
        LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>, Ingo Molnar <mingo@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        netdev <netdev@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Song Liu <songliubraving@...com>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Yonghong Song <yhs@...com>
Subject: Re: WARNING in add_event_to_ctx

On Fri, Jan 10, 2020 at 3:45 PM Steven Rostedt <rostedt@...dmis.org> wrote:
>
> On Thu, 09 Jan 2020 22:50:00 -0800
> syzbot <syzbot+704bfe2c7d156640ad7a@...kaller.appspotmail.com> wrote:
>
> > syzbot suspects this bug was fixed by commit:
>
> I think these reports need some more information. Like the sample crash
> report, so we don't need to be clicking through links to find it.
> Because I have no idea what bug was fixed.

Hi Steve,

Isn't it threaded to the original report in your client? The message
has both matching subject and In-Reply-To header. At least that was
the idea.

> > commit 311633b604063a8a5d3fbc74d0565b42df721f68
> > Author: Cong Wang <xiyou.wangcong@...il.com>
> > Date:   Wed Jul 10 06:24:54 2019 +0000
> >
> >      hsr: switch ->dellink() to ->ndo_uninit()
> >
> > bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1005033ee00000
> > start commit:   6fbc7275 Linux 5.2-rc7
> > git tree:       upstream
> > kernel config:  https://syzkaller.appspot.com/x/.config?x=bff6583efcfaed3f
> > dashboard link: https://syzkaller.appspot.com/bug?extid=704bfe2c7d156640ad7a
> > syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1016165da00000
> > C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12b27be5a00000
> >
> > If the result looks correct, please mark the bug fixed by replying with:
> >
> > #syz fix: hsr: switch ->dellink() to ->ndo_uninit()
> >
> > For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>
> --
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