linux-kernel - Re: WARNING at kernel/workqueue.c:829 wq_worker_waking

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Message-ID: <20140220151317.GA32719@redhat.com>
Date:	Thu, 20 Feb 2014 16:13:17 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Lan Tianyu <tianyu.lan@...el.com>
Cc:	Jiri Olsa <jolsa@...hat.com>, Tejun Heo <tj@...nel.org>,
	Zhang Rui <rui.zhang@...el.com>, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: WARNING at kernel/workqueue.c:829
	wq_worker_waking_up+0x53/0x70()

On 02/20, Lan Tianyu wrote:
>
> @@ -1096,7 +1112,6 @@ int acpi_processor_set_throttling(struct acpi_processor *pr,
>  		return -ENODEV;
>  	}
>
> -	cpumask_copy(saved_mask, &current->cpus_allowed);

Yes, but the patch forgets to kill alloc_cpumask_var(&saved_mask)
and saved_mask itself ;)

Oleg.

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