linux-kernel - Re: Possible race between CPU hotplug and perf_pmu_migrate

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Message-ID: <20140901190534.GC5806@worktop.ger.corp.intel.com>
Date:	Mon, 1 Sep 2014 21:05:34 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Mark Rutland <mark.rutland@....com>
Cc:	linux-kernel@...r.kernel.org, Yan@...erpostej.cambridge.arm.com,
	Zheng <zheng.z.yan@...el.com>,
	Stephane Eranian <eranian@...gle.com>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: Possible race between CPU hotplug and perf_pmu_migrate_context

On Mon, Sep 01, 2014 at 07:18:08PM +0100, Mark Rutland wrote:
> Hi all,

> [   66.780759]  [<ffffffff8109dd33>] rcu_process_callbacks+0x1e3/0x540

> Has anything seen anything like this before? Is this a known issue?

I've not seen it reported.. sounds like 'fun' though.
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