From: Tejun Heo <tj@kernel.org>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Warning in worker_enter_idle()
Date: Mon, 7 May 2012 14:34:49 -0700 [thread overview]
Message-ID: <20120507213449.GM19417@google.com> (raw)
In-Reply-To: <20120507205516.GD21152@linux.vnet.ibm.com>
Hello,
On Mon, May 07, 2012 at 01:55:16PM -0700, Paul E. McKenney wrote:
> I was running rcutorture with CPU hotplug operations. It has happened
> a couple of times on the .config that I attached, but never under any
> of the other 13 .configs that I run.
Ah, okay. The invariant breaks when CPU detaches. The WARN_ON()
probably just needs a condition to disable it if the gcwq is detached.
I'll look into it tomorrow.
Thanks.
--
tejun
next prev parent reply other threads:[~2012-05-07 21:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-06 15:38 Warning in worker_enter_idle() Paul E. McKenney
2012-05-07 19:40 ` Tejun Heo
2012-05-07 20:55 ` Paul E. McKenney
2012-05-07 21:34 ` Tejun Heo [this message]
2012-05-14 22:12 ` [PATCH] workqueue: skip nr_running sanity check in worker_enter_idle() if trustee is active Tejun Heo
2012-05-14 22:41 ` Paul E. McKenney
2012-05-17 0:15 ` Paul E. McKenney
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