On Wed, Oct 10, 2018 at 07:19:00PM +0900, Tetsuo Handa wrote:
> On 2018/10/10 19:04, Jan Kara wrote:
> > Hi,
> >
> > this patch series fixes oops and possible deadlocks as reported by syzbot
> > [1]
> > [2]. The second patch in the series (from Tetsuo) fixes the oops, the
> > remaining
> > patches are cleaning up the locking in the loop driver so that we can in the
> > end reasonably easily switch to rereading partitions without holding mutex
> > protecting the loop device.
> >
> > I have lightly tested the patches by creating, deleting, and modifying loop
> > devices but if there's some more comprehensive loopback device testsuite, I
> > can try running it. Review is welcome!
>
> Testing on linux-next by syzbot will be the most comprehensive. ;-)
Apart from that blktests has a loop category and I think it could also be
worthwhile to add the C reproducer from syzkaller to blktests.
Byte,
Johannes
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Johannes Thumshirn SUSE Labs
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