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Message-ID: <20150127084842.GO2896@worktop.programming.kicks-ass.net>
Date: Tue, 27 Jan 2015 09:48:42 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Sasha Levin <sasha.levin@...cle.com>
Cc: Kirill Tkhai <ktkhai@...allels.com>, linux-kernel@...r.kernel.org,
Oleg Nesterov <oleg@...hat.com>,
Ingo Molnar <mingo@...hat.com>,
Burke Libbey <burke.libbey@...pify.com>,
Vladimir Davydov <vdavydov@...allels.com>,
Kirill Tkhai <tkhai@...dex.ru>
Subject: Re: [PATCH] sched: Fix race between task_group and sched_task_group
On Mon, Jan 26, 2015 at 06:46:12PM -0500, Sasha Levin wrote:
> This seems to cause the following lockdep warning:
unlikely, the fork -> sched_move_task() was only used to establish that
rq->lock nests inside p->pi_lock, and there's a gazillion other ways to
establish that.
That said, its a right mess indeed. Let me stare a wee bit more at this
rats nets.
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