linux-kernel - Re: [Bug #12417] glx performance drop with: "x86: PAT: implement track/untrack of pfnmap regions for x86

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Date:	Wed, 4 Feb 2009 14:46:12 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Alexey Fisher <bug-track@...her-privat.net>,
	"H. Peter Anvin" <hpa@...or.com>,
	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: [Bug #12417] glx performance drop with: "x86: PAT: implement
	track/untrack of pfnmap regions for x86 - v3"


* Rafael J. Wysocki <rjw@...k.pl> wrote:

> This message has been generated automatically as a part of a report
> of recent regressions.
> 
> The following bug entry is on the current list of known regressions
> from 2.6.28.  Please verify if it still should be listed and let me know
> (either way).
> 
> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12417
> Subject		: glx performance drop with: "x86: PAT: implement track/untrack of pfnmap regions for x86 - v3"
> Submitter	: Alexey Fisher <bug-track@...her-privat.net>
> Date		: 2009-01-06 18:46 (30 days old)
> First-Bad-Commit: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5899329b19100c0b82dc78e9b21ed8b920c9ffb3
> References	: http://marc.info/?l=linux-kernel&m=123126782822696&w=4
> Handled-By	: Pallipadi, Venkatesh <venkatesh.pallipadi@...el.com>
> 		  Ingo Molnar <mingo@...e.hu>
> 

this should be fixed in latest -git. Alexey, can you confirm?

	Ingo
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