linux-kernel - Re: 2.6.28-rc9: oprofile regression

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Message-ID: <20081222155520.83816t3ghfflq1ds@mail.klingt.org>
Date:	Mon, 22 Dec 2008 15:55:20 +0100
From:	"Tim Blechmann" <tim@...ngt.org>
To:	"Robert Richter" <robert.richter@....com>
Cc:	"Tim Blechmann" <tim@...ngt.org>, oprofile-list@...ts.sf.net,
	linux-kernel@...r.kernel.org, "Andi Kleen" <ak@...ux.intel.com>
Subject: Re: 2.6.28-rc9: oprofile regression

>>> i am experiencing an issue, similar to the one reported in
>>> http://lkml.org/lkml/2008/10/30/319.
>>
>> bisecting showed, that commit b99170288421c79f0c2efa8b33e26e65f4bb7fb8
>> (oprofile: Implement Intel architectural perfmon support) caused the
>> problem.
>> oddly, the newly introduced api is not used, since the model struct is
>> set during the ppro_init call ...
>
> Tim,
>
> I just tested rc9 on a system I have available and I could not
> reproduce this.
>
> cpu family	: 6
> model		: 15
> model name	: Intel(R) Core(TM)2 CPU          6300  @ 1.86GHz
> stepping	: 2
>
> Does fix 7c64ade53a6f977d73f16243865c42ceae999aea work on your system?

7c64ade53a6f977d73f16243865c42ceae999aea has been included in rc9, but still
i experience this issue ...

the only difference to my cpu is the stepping (i have stepping 6) ... also, in
case it matters, i am running a 64bit kernel ...

tim

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