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

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Message-ID: <CAFj5m9+j=KNhaRruRZ7p0Nnt6PiqOVQN00vhgcwEgfKji=rJEg@mail.gmail.com>
Date: Wed, 13 Nov 2024 17:14:34 +0800
From: Ming Lei <ming.lei@...hat.com>
To: syzbot <syzbot+867b0179d31db9955876@...kaller.appspotmail.com>
Cc: axboe@...nel.dk, linux-block@...r.kernel.org, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [block?] possible deadlock in loop_reconfigure_limits

On Tue, Nov 12, 2024 at 10:30 PM syzbot
<syzbot+867b0179d31db9955876@...kaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    929beafbe7ac Add linux-next specific files for 20241108
> git tree:       linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=16b520c0580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=75175323f2078363
> dashboard link: https://syzkaller.appspot.com/bug?extid=867b0179d31db9955876
> compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11b520c0580000
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/9705ecb6a595/disk-929beafb.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/dbdd1f64b9b8/vmlinux-929beafb.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/3f70d07a929b/bzImage-929beafb.xz
> mounted in repro: https://storage.googleapis.com/syzbot-assets/7589a4f7020b/mount_2.gz

...

>
>
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@...glegroups.com.
>
> syzbot will keep track of this issue. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
>
> If the report is already addressed, let syzbot know by replying with:
> #syz fix: exact-commit-title
>
> If you want syzbot to run the reproducer, reply with:
> #syz test: git://repo/address.git branch-or-commit-hash

#syz test: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
 master