linux-kernel - RE: [patch] x86, perf_counter, bts: add bts to perf

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Message-ID: <928CFBE8E7CB0040959E56B4EA41A77EC1BFF06B@irsmsx504.ger.corp.intel.com>
Date:	Fri, 7 Aug 2009 12:37:42 +0100
From:	"Metzger, Markus T" <markus.t.metzger@...el.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"hpa@...or.com" <hpa@...or.com>,
	"markus.t.metzger@...il.com" <markus.t.metzger@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [patch] x86, perf_counter, bts: add bts to perf_counter

>-----Original Message-----
>From: Ingo Molnar [mailto:mingo@...e.hu]
>Sent: Friday, August 07, 2009 1:20 PM
>To: Metzger, Markus T
>Cc: Peter Zijlstra; tglx@...utronix.de; hpa@...or.com; markus.t.metzger@...il.com; linux-
>kernel@...r.kernel.org
>Subject: Re: [patch] x86, perf_counter, bts: add bts to perf_counter
>
>
>note, i had this running in the background, as root:
>
>/home/mingo/bin/perf top >/dev/null 2>/dev/null&


I can reproduce the kernel hang in that case.

I'll look into it.

regards,
markus.
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