linux-kernel - Re: [syzbot] [ext4?] INFO: task hung in ext4_stop

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Message-ID: <20241022090327.qhemczcaheaympct@quack3>
Date: Tue, 22 Oct 2024 11:03:27 +0200
From: Jan Kara <jack@...e.cz>
To: syzbot <syzbot+0dd5b81275fa083055d7@...kaller.appspotmail.com>
Cc: adilger.kernel@...ger.ca, brauner@...nel.org,
	clang-built-linux@...glegroups.com, harshadshirwadkar@...il.com,
	jack@...e.cz, linux-ext4@...r.kernel.org,
	linux-kernel@...r.kernel.org, nathan@...nel.org,
	ndesaulniers@...gle.com, syzkaller-bugs@...glegroups.com,
	tytso@....edu
Subject: Re: [syzbot] [ext4?] INFO: task hung in ext4_stop_mmpd

On Mon 21-10-24 16:37:04, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit d3476f3dad4ad68ae5f6b008ea6591d1520da5d8
> Author: Jan Kara <jack@...e.cz>
> Date:   Mon Aug 5 20:12:41 2024 +0000
> 
>     ext4: don't set SB_RDONLY after filesystem errors
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10d04640580000
> start commit:   4a39ac5b7d62 Merge tag 'random-6.12-rc1-for-linus' of git:..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=dd14c10ec1b6af25
> dashboard link: https://syzkaller.appspot.com/bug?extid=0dd5b81275fa083055d7
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14fbd177980000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=108ea607980000
> 
> If the result looks correct, please mark the issue as fixed by replying with:

Looks plausible:

#syz fix: ext4: don't set SB_RDONLY after filesystem errors

								Honza
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR