From: Andi Kleen <andi@firstfloor.org>
To: Helge Hafting <helge.hafting@aitel.hist.no>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>,
Alexander Huemer <alexander.huemer@sbg.ac.at>,
"Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andi Kleen <andi@firstfloor.org>
Subject: Re: 2.6.27 mtrr fixes do not work when X starts
Date: Wed, 27 Aug 2008 15:03:18 +0200 [thread overview]
Message-ID: <20080827130318.GU26610@one.firstfloor.org> (raw)
In-Reply-To: <48B54E45.6020206@aitel.hist.no>
On Wed, Aug 27, 2008 at 02:53:25PM +0200, Helge Hafting wrote:
> Yinghai Lu wrote:
> >On Tue, Aug 26, 2008 at 2:32 AM, Helge Hafting
> ><helge.hafting@aitel.hist.no> wrote:
>
> >>I hope this helps so the extra bootup parameters can be avoided in the
> >>release kernel.
> >
> >that is a little bit hard.
>
> Well, perhaps not 2.6.27, but I hope I won't need
> "mtrr_spare_reg_nr=3" forever. Or is my machine a strange
> corner case as far as mtrr's are concerned?
It's just a side effect of having far too much BIOS code
in the kernel. These basic MTRRs should be set up by the BIOS and when
the kernel starts to think it knows better it ultimatively ends up
being far more platform dependent than it should be.
-Andi
prev parent reply other threads:[~2008-08-27 13:00 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-06 14:05 2.6.27-rc1 mtrr fixes do not work Alexander Huemer
2008-08-07 20:14 ` Rafael J. Wysocki
2008-08-07 20:15 ` Pallipadi, Venkatesh
2008-08-07 20:23 ` Yinghai Lu
2008-08-07 20:26 ` Yinghai Lu
2008-08-07 22:14 ` Alexander Huemer
2008-08-07 23:16 ` Yinghai Lu
2008-08-07 23:17 ` Yinghai Lu
2008-08-07 23:30 ` Alexander Huemer
2008-08-07 23:58 ` Yinghai Lu
2008-08-08 0:28 ` Alexander Huemer
2008-08-14 14:09 ` Alexander Huemer
2008-08-14 17:31 ` Yinghai Lu
2008-08-21 14:52 ` 2.6.27 " Alexander Huemer
2008-08-21 15:27 ` Yinghai Lu
2008-08-21 18:44 ` Alexander Huemer
2008-08-22 10:11 ` 2.6.27 mtrr fixes do not work when X starts Helge Hafting
2008-08-22 17:24 ` Yinghai Lu
2008-08-25 11:10 ` Helge Hafting
2008-08-25 20:08 ` Yinghai Lu
2008-08-25 20:19 ` Alexander Huemer
2008-08-25 20:22 ` Yinghai Lu
[not found] ` <48B31508.6020305@sbg.ac.at>
[not found] ` <86802c440808251344h697a27d0i91486a836d258cb@mail.gmail.com>
[not found] ` <86802c440808251624u181a98eesd8a19ea6fd3d8d8c@mail.gmail.com>
[not found] ` <48B34056.5080100@sbg.ac.at>
[not found] ` <86802c440808251633s7bf8ecb2ua6ef187b5be563db@mail.gmail.com>
2008-08-29 15:09 ` 2.6.27 mtrr fixes do not work Alexander Huemer
2008-08-29 17:43 ` Yinghai Lu
2008-08-29 19:10 ` Alexander Huemer
2008-08-29 21:39 ` Yinghai Lu
2008-08-30 11:11 ` Helge Hafting
2008-08-26 9:32 ` 2.6.27 mtrr fixes do not work when X starts Helge Hafting
2008-08-26 16:43 ` Yinghai Lu
2008-08-27 12:53 ` Helge Hafting
2008-08-27 13:03 ` Andi Kleen [this message]
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