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Subject: Re: [PATCH][GIT PULL] tracing: Fix compile issue for
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From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
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Date: Thu, 21 Oct 2010 09:22:24 +0200
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On Thu, 2010-10-21 at 11:58 +0900, Masami Hiramatsu wrote:

> It seems there can be a bug in stop_machine() routine under
> heavy use. usually that is called just once at a time, but jump
> label and optprobe might call it heavily (thousands times?).
> So some racy situation can be happen easily.

There are people doing hotplug stress testing, that too results in heavy
stop_machine usage.