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Re: WARN_ON_ONCE() in process_one_work()?

From Tejun Heo <tj@kernel.org>
Newsgroups linux.kernel
Subject Re: WARN_ON_ONCE() in process_one_work()?
Date 2017-05-01 22:00 +0200
Message-ID <tCpEe-4R3-21@gated-at.bofh.it> (permalink)
References <tCmQ2-39r-27@gated-at.bofh.it> <tCoyu-4dM-9@gated-at.bofh.it> <tCpux-4NU-5@gated-at.bofh.it>
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On Mon, May 01, 2017 at 03:42:37PM -0400, Steven Rostedt wrote:
> On Mon, 1 May 2017 14:42:50 -0400
> Tejun Heo <tj@kernel.org> wrote:
> 
> > Steven's involved a rescuer too.  One possibility was cpuset being
> > involved somehow and messing up the affinity of the rescuer kthread
> > unexpectedly.  Is cpuset involved in any way?
> 
> I didn't do anything with cpuset. I did take CPUs offline though.
> 
> I'm currently testing changes, but when its done, I'll remove the
> "WARN_ON() comment out" and see if I can reproduce it again.

Were you also using nohz_full?

Thanks.

-- 
tejun

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Thread

Re: WARN_ON_ONCE() in process_one_work()? Tejun Heo <tj@kernel.org> - 2017-05-01 20:50 +0200
  Re: WARN_ON_ONCE() in process_one_work()? Steven Rostedt <rostedt@goodmis.org> - 2017-05-01 21:50 +0200
    Re: WARN_ON_ONCE() in process_one_work()? Tejun Heo <tj@kernel.org> - 2017-05-01 22:00 +0200
      Re: WARN_ON_ONCE() in process_one_work()? Steven Rostedt <rostedt@goodmis.org> - 2017-05-01 22:10 +0200

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