Re: mmots test error: WARNING in __wake_up_common

[Dmitry Vyukov]

On Fri, Dec 8, 2017 at 7:05 PM, Dmitry Vyukov <dvyukov@xxxxxxxxxx> wrote:
> On Fri, Dec 1, 2017 at 6:05 PM, Christoph Hellwig <hch@xxxxxx> wrote:
>> Ok, more epoll fun.  We already have a discussion on it on lkml..
>
> Need to tell the bot what fixed it:
>
> #syz fix: epoll: use proper wake_up variant in ep_poll_callback

The right one seems to be:

#syz fix: epoll: use the waitqueue lock to protect ep->wq