On Thu 28-12-23 11:50:32, Christian Brauner wrote:
> On Sun, Dec 24, 2023 at 08:40:05AM -0800, syzbot wrote:
> > syzbot suspects this issue was fixed by commit:
> >
> > commit fd1464105cb37a3b50a72c1d2902e97a71950af8
> > Author: Jan Kara <j...@suse.cz>
> > Date: Wed Oct 18 15:29:24 2023 +0000
> >
> > fs: Avoid grabbing sb->s_umount under bdev->bd_holder_lock
> >
> > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14639595e80000
> > start commit: 2cf0f7156238 Merge tag 'nfs-for-6.6-2' of git://git.linux-..
> > git tree: upstream
> > kernel config: https://syzkaller.appspot.com/x/.config?x=710dc49bece494df
> > dashboard link: https://syzkaller.appspot.com/bug?extid=062317ea1d0a6d5e29e7
> > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=107e9518680000
> >
> > If the result looks correct, please mark the issue as fixed by replying
> > with:
> >
> > #syz fix: fs: Avoid grabbing sb->s_umount under bdev->bd_holder_lock
> >
> > For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>
> Fwiw, this was always a false-positive. But we also reworked the locking
> that even the false-positive cannot be triggered anymore. So yay!
Yup, nice. I think you need to start the line with syz command so:
#syz fix: fs: Avoid grabbing sb->s_umount under bdev->bd_holder_lock
Honza
--
Jan Kara <j...@suse.com>
SUSE Labs, CR
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