linux-kernel - Re: [syzbot] [ocfs2?] possible deadlock in ocfs2_finish_quota

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Message-ID: <e426eaa2-3c17-42d6-906f-c41443ac48d3@suse.com>
Date: Thu, 17 Apr 2025 13:05:40 +0800
From: Heming Zhao <heming.zhao@...e.com>
To: syzbot <syzbot+f59a1ae7b7227c859b8f@...kaller.appspotmail.com>,
 jack@...e.cz, joseph.qi@...ux.alibaba.com, linux-kernel@...r.kernel.org,
 m.masimov@...integration.ru, ocfs2-devel@...ts.linux.dev,
 syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [ocfs2?] possible deadlock in
 ocfs2_finish_quota_recovery

On 4/17/25 12:21, syzbot wrote:
> Hello,
> 
> syzbot has tested the proposed patch but the reproducer is still triggering an issue:
> unregister_netdevice: waiting for DEV to become free
> 
> unregister_netdevice: waiting for batadv0 to become free. Usage count = 3

This is another module's issue, and the deadlock issue disappeared.

- Heming
> 
> 
> Tested on:
> 
> commit:         11376431 ocfs2: Stop quota recovery before disabling q..
> git tree:       https://github.com/zhaohem/linux jans_ocfs2
> console output: https://syzkaller.appspot.com/x/log.txt?x=14183a3f980000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=5348e7fd1b89a770
> dashboard link: https://syzkaller.appspot.com/bug?extid=f59a1ae7b7227c859b8f
> compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
> 
> Note: no patches were applied.