linux-kernel - Re: [syzbot] [gfs2?] INFO: task hung in write_cache

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Date: Fri, 16 Feb 2024 12:43:32 +0100
From: Jan Kara <jack@...e.cz>
To: syzbot <syzbot+4fcffdd85e518af6f129@...kaller.appspotmail.com>
Cc: agruenba@...hat.com, akpm@...ux-foundation.org, anprice@...hat.com,
	axboe@...nel.dk, brauner@...nel.org, cluster-devel@...hat.com,
	dvyukov@...gle.com, elver@...gle.com, gfs2@...ts.linux.dev,
	glider@...gle.com, jack@...e.cz, kasan-dev@...glegroups.com,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [gfs2?] INFO: task hung in write_cache_pages (3)

On Fri 16-02-24 03:04:03, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit 6f861765464f43a71462d52026fbddfc858239a5
> Author: Jan Kara <jack@...e.cz>
> Date:   Wed Nov 1 17:43:10 2023 +0000
> 
>     fs: Block writes to mounted block devices
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=151b2b78180000
> start commit:   92901222f83d Merge tag 'f2fs-for-6-6-rc1' of git://git.ker..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=3d78b3780d210e21
> dashboard link: https://syzkaller.appspot.com/bug?extid=4fcffdd85e518af6f129
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17933a00680000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12ef7104680000
> 
> If the result looks correct, please mark the issue as fixed by replying with:

Makes sense.
 
#syz fix: fs: Block writes to mounted block devices

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