From: Peter Zijlstra <peterz@infradead.org>
To: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: jjherne@linux.vnet.ibm.com, Sasha Levin <sasha.levin@oracle.com>,
Tejun Heo <tj@kernel.org>, LKML <linux-kernel@vger.kernel.org>,
Dave Jones <davej@redhat.com>, Ingo Molnar <mingo@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Steven Rostedt <rostedt@goodmis.org>
Subject: Re: workqueue: WARN at at kernel/workqueue.c:2176
Date: Wed, 4 Jun 2014 08:48:52 +0200 [thread overview]
Message-ID: <20140604064852.GE30445@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <538E8462.80309@cn.fujitsu.com>
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On Wed, Jun 04, 2014 at 10:28:50AM +0800, Lai Jiangshan wrote:
> On 06/03/2014 07:24 PM, Lai Jiangshan wrote:
> > Hi, Jason
> >
> > Could you test again after the following command has done.
> > (if Peter hasn't asked you test with this command before nor he doesn't stop you now)
> >
> > echo NO_TTWU_QUEUE > /sys/kernel/debug/sched_features
>
>
> Off-topic!
>
> Why sched_features is in debugfs? I thought it is in procfs or sysfs.
because its for debugging, note that the entire thing relies on
CONFIG_SCHED_DEBUG, if you build without that its gone.
Its not an API its not for production use, its debugging.
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next prev parent reply other threads:[~2014-06-04 6:49 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-12 18:58 workqueue: WARN at at kernel/workqueue.c:2176 Sasha Levin
2014-05-12 20:01 ` Tejun Heo
2014-05-13 2:19 ` Lai Jiangshan
2014-05-13 2:17 ` Sasha Levin
2014-05-14 16:52 ` Jason J. Herne
2014-05-16 3:50 ` Lai Jiangshan
2014-05-16 9:35 ` Peter Zijlstra
2014-05-16 9:56 ` Lai Jiangshan
2014-05-16 10:29 ` Peter Zijlstra
2014-05-16 10:15 ` Peter Zijlstra
2014-05-16 10:16 ` Peter Zijlstra
2014-05-16 10:39 ` Peter Zijlstra
2014-05-16 11:57 ` Peter Zijlstra
2014-05-16 12:08 ` Tejun Heo
2014-05-16 12:14 ` Thomas Gleixner
2014-05-16 12:16 ` Tejun Heo
2014-05-16 16:18 ` Lai Jiangshan
2014-05-16 16:29 ` Peter Zijlstra
2014-05-27 14:18 ` Jason J. Herne
2014-05-27 14:26 ` Peter Zijlstra
2014-05-29 16:23 ` Jason J. Herne
2014-06-03 11:24 ` Lai Jiangshan
2014-06-03 12:45 ` Lai Jiangshan
2014-06-03 14:28 ` Peter Zijlstra
2014-06-04 1:47 ` Lai Jiangshan
2014-06-03 14:16 ` Peter Zijlstra
2014-06-04 2:27 ` Lai Jiangshan
2014-06-04 6:49 ` Peter Zijlstra
2014-06-04 8:25 ` Lai Jiangshan
2014-06-04 9:39 ` Peter Zijlstra
2014-06-05 10:54 ` Lai Jiangshan
2014-06-05 15:22 ` Jason J. Herne
2014-06-06 12:39 ` Jason J. Herne
2014-06-06 13:36 ` Peter Zijlstra
2014-06-08 2:50 ` Lai Jiangshan
2014-09-01 3:04 ` Lai Jiangshan
2014-09-03 15:15 ` Peter Zijlstra
2014-09-04 2:22 ` Lai Jiangshan
2014-09-04 6:39 ` Peter Zijlstra
2014-06-09 14:01 ` Jason J. Herne
2014-06-10 1:21 ` Lai Jiangshan
2014-06-16 1:30 ` Lai Jiangshan
2014-09-09 14:52 ` [tip:sched/core] sched: Migrate waking tasks tip-bot for Lai Jiangshan
2014-09-10 7:38 ` Kirill Tkhai
2014-09-10 7:53 ` Peter Zijlstra
2014-06-04 2:28 ` workqueue: WARN at at kernel/workqueue.c:2176 Lai Jiangshan
2014-06-04 6:48 ` Peter Zijlstra [this message]
2014-05-19 13:07 ` [tip:sched/core] sched: Fix hotplug vs set_cpus_allowed_ptr() tip-bot for Lai Jiangshan
2014-05-22 12:26 ` [tip:sched/core] sched: Fix hotplug vs. set_cpus_allowed_ptr() tip-bot for Lai Jiangshan
2014-05-22 22:02 ` Srivatsa S. Bhat
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