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

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Message-ID: <6858d142.a00a0220.2e5631.0004.GAE@google.com>
Date: Sun, 22 Jun 2025 21:00:02 -0700
From: syzbot <syzbot+2e9e529ac0b319316453@...kaller.appspotmail.com>
To: axboe@...nel.dk, hch@....de, hdanton@...a.com, linux-block@...r.kernel.org, 
	linux-kernel@...r.kernel.org, ming.lei@...hat.com, netdev@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [block?] possible deadlock in __del_gendisk

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=1024db0c580000
start commit:   e0fca6f2cebf net: mana: Record doorbell physical address i..
git tree:       net
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1224db0c580000
console output: https://syzkaller.appspot.com/x/log.txt?x=1424db0c580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d11f52d3049c3790
dashboard link: https://syzkaller.appspot.com/bug?extid=2e9e529ac0b319316453
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=132f8dd4580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14aac182580000

Reported-by: syzbot+2e9e529ac0b319316453@...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