Messages in this thread | | | Date | Wed, 13 Dec 2017 17:03:00 -0800 | From | Andrew Morton <> | Subject | Re: d1fc031747 ("sched/wait: assert the wait_queue_head lock is .."): EIP: __wake_up_common |
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On Thu, 14 Dec 2017 08:50:15 +0800 kernel test robot <fengguang.wu@intel.com> 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 <hch@lst.de> > AuthorDate: Wed Dec 13 11:52:12 2017 +1100 > Commit: Stephen Rothwell <sfr@canb.auug.org.au> > 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
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