linux-kernel - Re: [syzbot] [btrfs?] INFO: task hung in lock

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Date: Sun, 14 Apr 2024 01:41:02 -0700
From: syzbot <syzbot+eaa05fbc7563874b7ad2@...kaller.appspotmail.com>
To: clm@...com, dsterba@...e.com, fdmanana@...e.com, josef@...icpanda.com, 
	linux-btrfs@...r.kernel.org, linux-fsdevel@...r.kernel.org, 
	linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [btrfs?] INFO: task hung in lock_extent

syzbot suspects this issue was fixed by commit:

commit b0ad381fa7690244802aed119b478b4bdafc31dd
Author: Josef Bacik <josef@...icpanda.com>
Date:   Mon Feb 12 16:56:02 2024 +0000

    btrfs: fix deadlock with fiemap and extent locking

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=101316f5180000
start commit:   7521f258ea30 Merge tag 'mm-hotfixes-stable-2024-02-10-11-1..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=89a5d896b14c4565
dashboard link: https://syzkaller.appspot.com/bug?extid=eaa05fbc7563874b7ad2
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14c0d1e0180000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10aff5b8180000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: btrfs: fix deadlock with fiemap and extent locking

For information about bisection process see: https://goo.gl/tpsmEJ#bisection