Re: INFO: task hung in __blkdev_get

[Tetsuo Handa]

Dmitry Vyukov wrote:
> On Tue, Apr 10, 2018 at 12:55 PM, Tetsuo Handa
> <penguin-kernel@xxxxxxxxxxxxxxxxxxx> wrote:
> > Hello.
> >
> > Since syzbot is reporting so many hung up bug which involves /dev/loopX ,
> > is it possible to "temporarily" apply below patch for testing under syzbot
> 
> Unfortunately it's not possible, for full explanation please see:
> https://github.com/google/syzkaller/blob/master/docs/syzbot.md#no-custom-patches
> 

I mean, sending custom patch to linux.git for -rc and revert the custom patch
before -final is released. It won't take so much period until we get the result.

If syzbot can test arbitrary git tree instead of linux.git, making a branch
which contains custom patches would be possible.

> 
> > ( after "block/loop: fix deadlock after loop_set_status" and
> > "loop: fix LOOP_GET_STATUS lock imbalance" in linux-block.git#for-linus
> > are merged into linux.git )?