linux-kernel - Re: [syzbot] [ocfs2?] possible deadlock in ocfs2

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Message-ID: <CACGkMEsqhW-pHhx3+t1GKKrn0RoHioUofC-QT+7nCDNASWn-Lw@mail.gmail.com>
Date: Wed, 23 Oct 2024 10:55:48 +0800
From: Jason Wang <jasowang@...hat.com>
To: syzbot <syzbot+d78497256d53041ee229@...kaller.appspotmail.com>
Cc: eadavis@...com, elic@...dia.com, jlbec@...lplan.org, 
	joseph.qi@...ux.alibaba.com, linux-kernel@...r.kernel.org, mark@...heh.com, 
	mst@...hat.com, ocfs2-devel@...ts.linux.dev, ocfs2-devel@....oracle.com, 
	parav@...dia.com, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [ocfs2?] possible deadlock in ocfs2_setattr

On Tue, Oct 22, 2024 at 11:31 PM syzbot
<syzbot+d78497256d53041ee229@...kaller.appspotmail.com> wrote:
>
> syzbot has bisected this issue to:
>
> commit a3c06ae158dd6fa8336157c31d9234689d068d02
> Author: Parav Pandit <parav@...dia.com>
> Date:   Tue Jan 5 10:32:03 2021 +0000
>
>     vdpa_sim_net: Add support for user supported devices

This commit seems to be ir-revelant as the changes are limited to
vDPA. It only shows the user vDPA mgmt devices which has nothing to do
with ocfs.

Thanks

>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=17fc2640580000
> start commit:   d12937763990 Merge tag 'for-linus' of git://git.kernel.org..
> git tree:       upstream
> final oops:     https://syzkaller.appspot.com/x/report.txt?x=14022640580000
> console output: https://syzkaller.appspot.com/x/log.txt?x=10022640580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=41330fd2db03893d
> dashboard link: https://syzkaller.appspot.com/bug?extid=d78497256d53041ee229
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12d0dc87980000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14e19430580000
>
> Reported-by: syzbot+d78497256d53041ee229@...kaller.appspotmail.com
> Fixes: a3c06ae158dd ("vdpa_sim_net: Add support for user supported devices")
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>