linux-kernel - Re: [syzbot] [gfs2?] general protection fault in gfs2_dump

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Date:   Tue, 5 Sep 2023 11:57:20 +0200
From:   Aleksandr Nogikh <nogikh@...gle.com>
To:     syzbot <syzbot+427fed3295e9a7e887f2@...kaller.appspotmail.com>
Cc:     agruenba@...hat.com, cluster-devel@...hat.com, elver@...gle.com,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        peterz@...radead.org, rpeterso@...hat.com,
        syzkaller-bugs@...glegroups.com, valentin.schneider@....com
Subject: Re: [syzbot] [gfs2?] general protection fault in gfs2_dump_glock (2)

Hmm, no, it might theoretically be that preemption affected bug
reproducibility, but this commit itself definitely has nothing to do
with the gfs2 problem.

On Tue, Sep 5, 2023 at 3:55 AM syzbot
<syzbot+427fed3295e9a7e887f2@...kaller.appspotmail.com> wrote:
>
> syzbot has bisected this issue to:
>
> commit a8b76910e465d718effce0cad306a21fa4f3526b
> Author: Valentin Schneider <valentin.schneider@....com>
> Date:   Wed Nov 10 20:24:44 2021 +0000
>
>     preempt: Restore preemption model selection configs
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1633aaf0680000
> start commit:   58390c8ce1bd Merge tag 'iommu-updates-v6.4' of git://git.k..
> git tree:       upstream
> final oops:     https://syzkaller.appspot.com/x/report.txt?x=1533aaf0680000
> console output: https://syzkaller.appspot.com/x/log.txt?x=1133aaf0680000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=5eadbf0d3c2ece89
> dashboard link: https://syzkaller.appspot.com/bug?extid=427fed3295e9a7e887f2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=172bead8280000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14d01d08280000
>
> Reported-by: syzbot+427fed3295e9a7e887f2@...kaller.appspotmail.com
> Fixes: a8b76910e465 ("preempt: Restore preemption model selection configs")
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>