linux-kernel - Re: workqueue: WARN at at kernel/workqueue.c:2176

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Message-ID: <20140516101643.GP13658@twins.programming.kicks-ass.net>
Date:	Fri, 16 May 2014 12:16:43 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Lai Jiangshan <laijs@...fujitsu.com>
Cc:	jjherne@...ux.vnet.ibm.com, Sasha Levin <sasha.levin@...cle.com>,
	Tejun Heo <tj@...nel.org>, LKML <linux-kernel@...r.kernel.org>,
	Dave Jones <davej@...hat.com>, Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: workqueue: WARN at at kernel/workqueue.c:2176

On Fri, May 16, 2014 at 12:15:05PM +0200, Peter Zijlstra wrote:
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -5126,7 +5126,6 @@ static int sched_cpu_active(struct notif
>  				      unsigned long action, void *hcpu)
>  {
>  	switch (action & ~CPU_TASKS_FROZEN) {
> -	case CPU_STARTING:
>  	case CPU_DOWN_FAILED:
>  		set_cpu_active((long)hcpu, true);
>  		return NOTIFY_OK;

In fact, I dropped this part as it conflicts with another patch I have,
and setting it again isn't a big problem.

  http://lkml.kernel.org/r/1399574859-11714-1-git-send-email-minyard@acm.org


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