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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Tejun Heo <tj@kernel.org>
Cc: jiangshanlai@gmail.com, linux-kernel@vger.kernel.org
Subject: Re: WARN_ON_ONCE() in process_one_work()?
Date: Wed, 14 Jun 2017 08:15:48 -0700	[thread overview]
Message-ID: <20170614151548.GA14462@linux.vnet.ibm.com> (raw)
In-Reply-To: <20170613223103.GX3721@linux.vnet.ibm.com>

On Tue, Jun 13, 2017 at 03:31:03PM -0700, Paul E. McKenney wrote:
> On Tue, Jun 13, 2017 at 04:58:37PM -0400, Tejun Heo wrote:
> > Hello, Paul.
> > 
> > On Fri, May 05, 2017 at 10:11:59AM -0700, Paul E. McKenney wrote:
> > > Just following up...  I have hit this bug a couple of times over the
> > > past few days.  Anything I can do to help?
> > 
> > My apologies for dropping the ball on this.  I've gone over the hot
> > plug code in workqueue several times but can't really find how this
> > would happen.  Can you please apply the following patch and see what
> > it says when the problem happens?
> 
> I have fired it up, thank you!
> 
> Last time I saw one failure in 21 hours of test runs, so I have kicked
> of 42 one-hour test runs.  Will see what happens tomorrow morning,
> Pacific Time.

And none of the 42 runs resulted in a workqueue splat.  I will try again
this evening, Pacific Time.

Who knows, maybe your diagnostic patch is the fix.  ;-)

							Thanx, Paul

  reply	other threads:[~2017-06-14 15:15 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-01 16:57 WARN_ON_ONCE() in process_one_work()? Paul E. McKenney
2017-05-01 18:38 ` Paul E. McKenney
2017-05-01 18:44   ` Tejun Heo
2017-05-01 18:58     ` Paul E. McKenney
2017-05-05 17:11       ` Paul E. McKenney
2017-06-13 20:58         ` Tejun Heo
2017-06-13 22:31           ` Paul E. McKenney
2017-06-14 15:15             ` Paul E. McKenney [this message]
2017-06-15 15:38               ` Paul E. McKenney
2017-06-16 17:36                 ` Paul E. McKenney
2017-06-17 11:53                   ` Tejun Heo
2017-06-17 17:31                     ` Paul E. McKenney
2017-06-18 10:40                       ` Tejun Heo
2017-06-20 16:45                         ` Paul E. McKenney
2017-06-21 15:30                           ` Paul E. McKenney
2017-06-23 16:41                             ` Paul E. McKenney
2017-06-27 16:27                               ` Paul E. McKenney
2017-05-01 18:42 ` Tejun Heo
2017-05-01 19:42   ` Steven Rostedt
2017-05-01 19:50     ` Tejun Heo
2017-05-01 20:02       ` Steven Rostedt
2018-06-20 19:29 Paul E. McKenney
2018-07-02 21:05 ` Tejun Heo
2018-07-03  4:05   ` Paul E. McKenney
2018-07-03 16:40     ` Paul E. McKenney
2018-07-03 20:12       ` Tejun Heo
2018-07-03 21:44         ` Paul E. McKenney

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