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Date:	Sun, 08 Nov 2009 15:00:28 +0100
From:	Stefani Seibold <stefani@...bold.net>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Americo Wang <xiyou.wangcong@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH] RFC x86_64 more accurate KSTK_ESP implementation

Am Sonntag, den 08.11.2009, 13:55 +0100 schrieb Ingo Molnar:
> * Stefani Seibold <stefani@...bold.net> wrote:
> 
> > > I'd suggest a competely different method: why dont you use an IPI to 
> > > sample the SP whenever someone wants to read it from /proc and we 
> > > see that the task is running on a CPU right now?
> > 
> > Sounds like a challenge, i like the idea. I will have a look on it...
> 
> It's not a fastpath, so smp_function_call() ought to do the trick.
> 
> 	Ingo

There is no function smp_function_call()...

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