From: Eric Brunet <ebrunet@lps.ens.fr>
To: linux-kernel@vger.kernel.org
Subject: Re: 845GE Chipset severe performance problems
Date: Tue, 1 Apr 2003 14:44:04 +0200 [thread overview]
Message-ID: <20030401124404.GA26931@lps.ens.fr> (raw)
In-Reply-To: <1049039985.14686.11.camel@dhcp22.swansea.linux.org.uk>
References: <188481168784.20030329130300@btinternet.com> <1048949147.6725.3.camel@dhcp22.swansea.linux.org.uk> <153495685337.20030329170457@btinternet.com> <1049039985.14686.11.camel@dhcp22.swansea.linux.org.uk>
As there is this thread about mtrr on Intel chipsets, I have some
messages in the log about mtrr, and I don't know whether they are
harmless warnings or errors that should be reported.
My computer is a 2.4 GhZ Pentium IV with an intel i845G/GL chipset.
Motherboard and bios by shuttle.
$ cat /proc/mtrr
reg00: base=0x00000000 ( 0MB), size= 512MB: write-back, count=1
reg01: base=0x1f800000 ( 504MB), size= 8MB: uncachable, count=1
reg02: base=0xe0000000 (3584MB), size= 128MB: write-combining, count=2
I have 512 MB of memory, the motherboard doesn't support more than 2GB
and I don't see what is this range over 3.5 GB. Also, the two first
overlaping ranges look suspicious.
I have the following error/warning messages in the log:
* with kernel 2.4.21pre3 (+ acpi patches)
mtrr: base(0xe0020000) is not aligned on a size(0x800000)
boundary
(this happens just after initializing drm)
* with kernel 2.5.63 (+ acpi patches)
mtrr: MTRR 2 not used
(this happens once or twice during each sutdown. Note that I don't have
drm with kernel 2.5.x, so I don't know if the first message is really
gone)
So... Is this situation normal ?
Éric Brunet
next reply other threads:[~2003-04-01 12:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-01 12:44 Eric Brunet [this message]
2003-04-01 13:15 ` 845GE Chipset severe performance problems Dave Jones
-- strict thread matches above, loose matches on Subject: below --
2003-03-29 13:03 Craig Robinson
2003-03-29 14:45 ` Alan Cox
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=20030401124404.GA26931@lps.ens.fr \
--to=ebrunet@lps.ens.fr \
--cc=linux-kernel@vger.kernel.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox