On Thu, 14 Dec 2017 08:50:15 +0800 kernel test robot <[email protected]> wrote:
> 0day kernel testing robot got the below dmesg and the first bad commit is > > https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > > commit d1fc0317472217762fa7741260ca464077b4c877 > Author: Christoph Hellwig <[email protected]> > AuthorDate: Wed Dec 13 11:52:12 2017 +1100 > Commit: Stephen Rothwell <[email protected]> > CommitDate: Wed Dec 13 16:04:58 2017 +1100 > > sched/wait: assert the wait_queue_head lock is held in __wake_up_common > > Better ensure we actually hold the lock using lockdep than just commenting > on it. Due to the various exported _locked interfaces it is far too easy > to get the locking wrong. I'm probably sitting on an older version. I've dropped epoll: use the waitqueue lock to protect ep->wq sched/wait: assert the wait_queue_head lock is held in __wake_up_common
