Re: [syzbot] [ocfs2?] possible deadlock in ocfs2_fiemap

[syzbot]

syzbot has bisected this issue to:

commit a3c06ae158dd6fa8336157c31d9234689d068d02
Author: Parav Pandit <parav@xxxxxxxxxx>
Date:   Tue Jan 5 10:32:03 2021 +0000

    vdpa_sim_net: Add support for user supported devices

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13a0a840580000
start commit:   1d227fcc7222 Merge tag 'net-6.12-rc3' of git://git.kernel...
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1060a840580000
console output: https://syzkaller.appspot.com/x/log.txt?x=17a0a840580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=7a3fccdd0bb995
dashboard link: https://syzkaller.appspot.com/bug?extid=ca440b457d21568f8021
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=142fc840580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15026b27980000

Reported-by: syzbot+ca440b457d21568f8021@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: a3c06ae158dd ("vdpa_sim_net: Add support for user supported devices")

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