From: Andi Kleen <andi@firstfloor.org>
To: Jesse Barnes <jesse.barnes@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>,
linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
Justin Piszcz <jpiszcz@lucidpixels.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Yinghai Lu <yhlu.kernel@gmail.com>
Subject: Re: [PATCH] trim memory not covered by WB MTRRs
Date: Tue, 26 Jun 2007 17:02:49 +0200 [thread overview]
Message-ID: <20070626150249.GA7877@one.firstfloor.org> (raw)
In-Reply-To: <200706251636.53636.jesse.barnes@intel.com>
On Mon, Jun 25, 2007 at 04:36:52PM -0700, Jesse Barnes wrote:
> On Monday, June 25, 2007 4:34:33 Andi Kleen wrote:
> > > This patch fixes a bug in the last patch that caused the code to
> > > run on non-Intel machines (AMD machines apparently don't need it
> >
> > Actually the problem can happen on AMD too, but the symptoms can
> > be different and there can be more wrong than just the MTRRs.
>
> I should have been more specific in the changelog. My understanding is
> that AMD systems don't need it for memory above 4G, and since the code
AMD systems need MTRRs to get cached memory too, or what is your point?
There was a new memory remapping feature in RevE but I didn't think
it obsoleted MTRRs.
We've also had systems with this issue.
-Andi
next prev parent reply other threads:[~2007-06-26 15:03 UTC|newest]
Thread overview: 118+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-25 21:34 [PATCH] trim memory not covered by WB MTRRs Jesse Barnes
2007-06-25 21:45 ` Justin Piszcz
2007-06-25 22:01 ` Andrew Morton
2007-06-25 22:05 ` Jesse Barnes
2007-06-25 22:29 ` Justin Piszcz
2007-06-25 23:34 ` Andi Kleen
2007-06-25 23:36 ` Jesse Barnes
2007-06-26 0:54 ` Eric W. Biederman
2007-06-26 3:29 ` Jesse Barnes
2007-06-26 3:30 ` Jesse Barnes
2007-06-26 15:03 ` Andi Kleen
2007-06-26 15:07 ` Jesse Barnes
2007-06-26 15:18 ` Jesse Barnes
2007-06-26 15:39 ` Andi Kleen
2007-06-26 15:54 ` Yinghai Lu
2007-06-26 16:06 ` Eric W. Biederman
2007-06-26 17:38 ` Andi Kleen
2007-06-26 18:55 ` Yinghai Lu
2007-06-26 15:02 ` Andi Kleen [this message]
2007-06-26 15:38 ` Jesse Barnes
2007-06-27 10:44 ` Pim Zandbergen
2007-06-27 11:22 ` Andi Kleen
2007-06-27 11:40 ` Pim Zandbergen
2007-06-27 11:44 ` Justin Piszcz
2007-06-27 14:22 ` Mauro Giachero
2007-06-27 15:04 ` Jesse Barnes
2007-06-27 16:00 ` Pim Zandbergen
2007-06-27 16:07 ` Jesse Barnes
2007-06-27 16:22 ` Jesse Barnes
2007-06-27 17:02 ` Pim Zandbergen
2007-06-27 17:06 ` Jesse Barnes
2007-06-27 17:17 ` Pim Zandbergen
2007-07-05 12:12 ` Pavel Machek
2007-07-05 12:16 ` Justin Piszcz
[not found] <8tyOc-8f0-17@gated-at.bofh.it>
2007-06-13 6:52 ` Bodo Eggert
2007-06-13 16:19 ` Dave Jones
[not found] <fa.i7vJP3lxWAlyOLjcsqOWPKlixD8@ifi.uio.no>
[not found] ` <fa.3ijVoClbWNHWrMhDABWjNPxp+wo@ifi.uio.no>
[not found] ` <fa.ZqgSvRGj/scOmd0AwnU6e21Gcwc@ifi.uio.no>
[not found] ` <fa.oNsjw768fkDpx3oef91fjAQs1Iw@ifi.uio.no>
[not found] ` <fa.x8ZCt4n0yXI1llhRq4wfjNfqK4w@ifi.uio.no>
2007-06-08 1:57 ` Robert Hancock
-- strict thread matches above, loose matches on Subject: below --
2007-06-07 22:30 Jesse Barnes
2007-06-07 22:50 ` Justin Piszcz
2007-06-07 22:53 ` Justin Piszcz
2007-06-07 23:00 ` Justin Piszcz
2007-06-08 8:20 ` Justin Piszcz
2007-06-12 14:50 ` Pavel Machek
2007-06-12 15:29 ` Jesse Barnes
2007-06-12 15:48 ` Andi Kleen
2007-06-12 21:30 ` Pavel Machek
2007-06-12 21:31 ` Justin Piszcz
2007-06-12 21:38 ` Ray Lee
2007-06-12 21:55 ` Pavel Machek
2007-06-13 0:25 ` Ray Lee
2007-06-13 8:22 ` Pavel Machek
2007-06-14 19:38 ` Pim Zandbergen
2007-06-14 20:26 ` Justin Piszcz
2007-06-14 21:18 ` Jesse Barnes
2007-06-14 21:21 ` Justin Piszcz
2007-06-14 21:26 ` Jesse Barnes
2007-06-15 10:21 ` Pim Zandbergen
2007-06-15 16:20 ` Jesse Barnes
2007-06-21 14:24 ` Pim Zandbergen
2007-06-21 14:28 ` Justin Piszcz
2007-06-25 16:31 ` Pim Zandbergen
2007-06-25 16:34 ` Justin Piszcz
2007-06-15 10:17 ` Pim Zandbergen
2007-06-15 10:34 ` Justin Piszcz
2007-06-15 17:28 ` Jesse Barnes
2007-06-20 13:55 ` Pim Zandbergen
2007-06-21 19:40 ` Yinghai Lu
2007-06-21 19:56 ` Jesse Barnes
2007-06-06 19:29 Jesse Barnes
2007-06-06 20:26 ` Justin Piszcz
2007-06-06 20:28 ` Jesse Barnes
2007-06-06 20:31 ` Jesse Barnes
2007-06-06 20:37 ` Justin Piszcz
2007-06-06 20:50 ` Jesse Barnes
2007-06-06 21:26 ` Justin Piszcz
2007-06-06 21:53 ` Justin Piszcz
2007-06-06 22:03 ` Justin Piszcz
2007-06-06 22:05 ` Jesse Barnes
2007-06-06 22:07 ` Justin Piszcz
2007-06-06 22:13 ` Justin Piszcz
2007-06-06 22:24 ` Jesse Barnes
2007-06-06 22:26 ` Justin Piszcz
2007-06-06 22:28 ` Jesse Barnes
2007-06-06 22:31 ` Justin Piszcz
2007-06-06 22:35 ` Justin Piszcz
2007-06-06 22:37 ` Randy Dunlap
2007-06-06 22:46 ` Justin Piszcz
2007-06-06 22:54 ` Justin Piszcz
2007-06-06 23:11 ` Randy Dunlap
2007-06-06 23:15 ` Justin Piszcz
2007-06-06 23:34 ` Jesse Barnes
2007-06-07 8:10 ` Justin Piszcz
2007-06-06 22:39 ` Justin Piszcz
2007-06-06 22:57 ` Justin Piszcz
2007-06-06 23:20 ` Jesse Barnes
2007-06-06 23:24 ` Justin Piszcz
2007-06-06 23:27 ` Jesse Barnes
2007-06-07 8:51 ` Andi Kleen
2007-06-07 8:53 ` Justin Piszcz
2007-06-07 9:55 ` Satyam Sharma
2007-06-07 17:33 ` Jesse Barnes
2007-06-07 7:45 ` Eric W. Biederman
2007-06-07 17:30 ` Jesse Barnes
2007-06-08 23:13 ` Eric W. Biederman
2007-06-12 15:39 ` Jesse Barnes
2007-06-07 8:16 ` Andi Kleen
2007-06-07 17:35 ` Jesse Barnes
2007-06-07 17:40 ` Justin Piszcz
2007-06-07 14:41 ` Pavel Machek
2007-06-08 0:20 ` Andrew Morton
2007-06-08 1:33 ` Jesse Barnes
2007-06-08 21:15 ` Andrew Morton
2007-06-08 21:28 ` Jesse Barnes
2007-06-13 1:11 ` Eric W. Biederman
2007-06-13 2:29 ` Jesse Barnes
2007-06-13 22:19 ` Eric W. Biederman
2007-06-20 11:22 ` Helge Hafting
2007-06-20 14:37 ` Andi Kleen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20070626150249.GA7877@one.firstfloor.org \
--to=andi@firstfloor.org \
--cc=akpm@linux-foundation.org \
--cc=ebiederm@xmission.com \
--cc=jesse.barnes@intel.com \
--cc=jpiszcz@lucidpixels.com \
--cc=linux-kernel@vger.kernel.org \
--cc=yhlu.kernel@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.