From: Pim Zandbergen <P.Zandbergen@macroscoop.nl>
To: Jesse Barnes <jesse.barnes@intel.com>
Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
Andi Kleen <andi@firstfloor.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: Wed, 27 Jun 2007 12:44:01 +0200 [thread overview]
Message-ID: <46823F71.6060200@macroscoop.nl> (raw)
In-Reply-To: <200706251434.43863.jesse.barnes@intel.com>
First:
Jesse saved my life by releasing a patch that made my GigaByte Intel G33
based motherboard use all of its 8GB RAM and not be slow as hell.
Then:
GigaByte released a BIOS update that fixed the root of the problem.
I went back from patched vanilla kernel to "official" Fedora kernel.
Now:
Jesse released a new patch and I tried if for fun on 2.6.22-rc6
It looks like the patch is releasing memory rather than trimming it:
Jun 27 12:22:56 corneille kernel: Linux version 2.6.22-rc6
(pim@corneille) (gcc version 4.1.2 20070502 (Red Hat 4.1.2-12)) #1 SMP
Wed Jun 27 11:41:29 CEST 2007
Jun 27 12:22:56 corneille kernel: Command line: root=LABEL=/
console=ttyS0,38400
Jun 27 12:22:56 corneille kernel: BIOS-provided physical RAM map:
Jun 27 12:22:56 corneille kernel: BIOS-e820: 0000000000000000 -
000000000009e800 (usable)
Jun 27 12:22:56 corneille kernel: BIOS-e820: 000000000009f800 -
00000000000a0000 (reserved)
Jun 27 12:22:56 corneille kernel: BIOS-e820: 00000000000f0000 -
0000000000100000 (reserved)
Jun 27 12:22:56 corneille kernel: BIOS-e820: 0000000000100000 -
00000000cf5e0000 (usable)
Jun 27 12:22:56 corneille kernel: BIOS-e820: 00000000cf5e0000 -
00000000cf5e3000 (ACPI NVS)
Jun 27 12:22:56 corneille kernel: BIOS-e820: 00000000cf5e3000 -
00000000cf5f0000 (ACPI data)
Jun 27 12:22:56 corneille kernel: BIOS-e820: 00000000cf5f0000 -
00000000cf600000 (reserved)
Jun 27 12:22:56 corneille kernel: BIOS-e820: 00000000d0000000 -
00000000e0000000 (reserved)
Jun 27 12:22:56 corneille kernel: BIOS-e820: 00000000fec00000 -
0000000100000000 (reserved)
Jun 27 12:22:56 corneille kernel: BIOS-e820: 0000000100000000 -
0000000230000000 (usable)
Jun 27 12:22:56 corneille kernel: end_pfn_map = 2293760
Jun 27 12:22:56 corneille kernel: ***************
Jun 27 12:22:56 corneille kernel: **** WARNING: likely BIOS bug
Jun 27 12:22:56 corneille kernel: **** MTRRs don't cover all of memory,
trimmed -65536 pages
Jun 27 12:22:56 corneille kernel: ***************
I tried the earlier patch as well and it gives the same result.
next prev parent reply other threads:[~2007-06-27 10:45 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
2007-06-26 15:38 ` Jesse Barnes
2007-06-27 10:44 ` Pim Zandbergen [this message]
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
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