Re: INFO: task hung in __get_super

From: Tetsuo Handa
Date: Fri May 03 2019 - 06:30:36 EST


On 2019/05/01 0:34, Tetsuo Handa wrote:
> I still cannot understand what the problem is.
(...snipped...)
> I guessed that something went wrong with 8083 inside __getblk_gfp().
> How can loop_ctl_mutex be relevant to this problem?
>

syzbot got similar NMI backtrace. No loop_ctl_mutex is involved.

INFO: task hung in mount_bdev (2)
https://syzkaller.appspot.com/bug?id=d9b9fa1428ff2466de64fc85256e769f516cea58