Re: [syzbot] [mm] [fs] possible deadlock in page_cache_ra_unbounded

Jan Kara <[email protected]> Fri, 21 Feb 2025 15:56:32 +0100

Newsgroups	org.kernel.vger.reiserfs-devel,org.kernel.vger.linux-fsdevel,org.kernel.vger.linux-kernel,org.kvack.linux-mm
Message-ID	<y5kibif4m6shs4c44o6c46mhi6mengffft2rfnnjk4djtxiqbb@bxbhd6rx6uof>

On Thu 20-02-25 08:20:02, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit 6f861765464f43a71462d52026fbddfc858239a5
> Author: Jan Kara <[email protected]>
> 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=16e867f8580000
> start commit:   861deac3b092 Linux 6.7-rc7
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=e1e118a9228c45d7
> dashboard link: https://syzkaller.appspot.com/bug?extid=47c7e14e1bd09234d0ad
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=100b9595e80000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1415ff9ee80000
> 
> 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 <[email protected]>
SUSE Labs, CR