linux-kernel - Re: PEBS (in perf) stopped working from 3.6 -> 3.7

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Message-ID: <20130107144000.GA8145@uio.no>
Date:	Mon, 7 Jan 2013 15:40:00 +0100
From:	"Steinar H. Gunderson" <sgunderson@...foot.com>
To:	David Ahern <dsahern@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: PEBS (in perf) stopped working from 3.6 -> 3.7

On Sun, Jan 06, 2013 at 08:48:36PM -0700, David Ahern wrote:
>> Why would the two be different?
> I will make a guess that is processor dependent. On an E5540 with
> 3.4.11-1.fc16.x86_64, 3.6.10-2.fc16.x86_64, and 3.8 I get the same
> failure message.
> 
> But on a E5620, it works fine with 3.4 and 3.7 (no intermediate
> kernels on that box).

That sounds a bit odd; the CPU can certainly do it with 3.6.

/* Steinar */
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Homepage: http://www.sesse.net/
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