Re: [syzbot] [hfs?] possible deadlock in hfs_extend_file (2)

[Jan Kara]

On Wed 21-02-24 20:10:04, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit 6f861765464f43a71462d52026fbddfc858239a5
> Author: Jan Kara <jack@xxxxxxx>
> 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=12bedb0c180000
> start commit:   610a9b8f49fb Linux 6.7-rc8
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=247b5a935d307ee5
> dashboard link: https://syzkaller.appspot.com/bug?extid=41a88b825a315aac2254
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1552fe19e80000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1419bcade80000
> 
> If the result looks correct, please mark the issue as fixed by replying with:
> 
> #syz fix: fs: Block writes to mounted block devices

Unlikely. The report seems more like a lockdep annotation problem where
different btrees used in HFS share the same lockdep key.

								Honza
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR