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Date:	Mon, 10 Nov 2014 19:10:36 +0300
From:	Kirill Tkhai <>
To:	Peter Zijlstra <>
CC:	Sasha Levin <>,
	<>, "Oleg Nesterov" <>,
	Ingo Molnar <>,
	"Vladimir Davydov" <>,
	Kirill Tkhai <>
Subject: Re: [PATCH v4] sched/numa: fix unsafe get_task_struct() in

В Пн, 10/11/2014 в 17:03 +0100, Peter Zijlstra пишет:
> On Fri, Nov 07, 2014 at 10:48:27PM -0500, Sasha Levin wrote:
> > [  829.539183] BUG: spinlock recursion on CPU#10, trinity-c594/11067
> > [  829.539203]  lock: 0xffff880631dd6b80, .magic: dead4ead, .owner: trinity-c594/11067, .owner_cpu: 13
> Ooh, look at that. CPU#10 vs .owner_cpu: 13 on the _same_ task.
> One of those again :/

We do not initialyse task_struct::numa_preferred_nid for INIT_TASK.
It there no a problem?

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