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

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Message-ID: <67392bad.050a0220.e1c64.0009.GAE@google.com>
Date: Sat, 16 Nov 2024 15:33:01 -0800
From: syzbot <syzbot+867b0179d31db9955876@...kaller.appspotmail.com>
To: axboe@...nel.dk, hch@....de, linux-block@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org, 
	mathieu.desnoyers@...icios.com, mhiramat@...nel.org, ming.lei@...hat.com, 
	rostedt@...dmis.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [block?] possible deadlock in loop_reconfigure_limits

syzbot has bisected this issue to:

commit f1be1788a32e8fa63416ad4518bbd1a85a825c9d
Author: Ming Lei <ming.lei@...hat.com>
Date:   Fri Oct 25 00:37:20 2024 +0000

    block: model freeze & enter queue as lock for supporting lockdep

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=129b52c0580000
start commit:   929beafbe7ac Add linux-next specific files for 20241108
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=119b52c0580000
console output: https://syzkaller.appspot.com/x/log.txt?x=169b52c0580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=75175323f2078363
dashboard link: https://syzkaller.appspot.com/bug?extid=867b0179d31db9955876
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11b520c0580000

Reported-by: syzbot+867b0179d31db9955876@...kaller.appspotmail.com
Fixes: f1be1788a32e ("block: model freeze & enter queue as lock for supporting lockdep")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection