linux-kernel - Re: [syzbot] [ext4?] WARNING in ext4_discard_allocated

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Message-ID: <20240216095607.zj3iqh4f7xkfy5ni@quack3>
Date: Fri, 16 Feb 2024 10:56:07 +0100
From: Jan Kara <jack@...e.cz>
To: syzbot <syzbot+628e71e1cb809306030f@...kaller.appspotmail.com>
Cc: adilger.kernel@...ger.ca, axboe@...nel.dk, brauner@...nel.org,
	jack@...e.cz, linux-ext4@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com, tintinm2017@...il.com,
	tytso@....edu
Subject: Re: [syzbot] [ext4?] WARNING in ext4_discard_allocated_blocks

On Thu 15-02-24 20:26:02, 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=13e72f42180000
> start commit:   7ba2090ca64e Merge tag 'ceph-for-6.6-rc1' of https://githu..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=ed626705db308b2d
> dashboard link: https://syzkaller.appspot.com/bug?extid=628e71e1cb809306030f
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=111acb20680000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=112d9f34680000
> 
> If the result looks correct, please mark the issue as fixed by replying with:

Looks sensible.
 
#syz fix: fs: Block writes to mounted block devices

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