From: "Simon Garner" <sgarner@expio.co.nz>
To: "Andi Kleen" <ak@colin2.muc.de>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: MSI K8D-Master - GART error 3
Date: Mon, 11 Aug 2003 10:43:57 +1200 [thread overview]
Message-ID: <003e01c35f91$08227b40$0401a8c0@SIMON> (raw)
In-Reply-To: 20030805134241.GA63394@colin2.muc.de
On Wednesday, August 06, 2003 1:42 AM [GMT+1200=NZT],
Andi Kleen <ak@colin2.muc.de> wrote:
>
> Ok that's the very old MCE code that incorrectly enabled the
> northbridge machine check. Don't use that or use mce=off. However I
> still think it's a driver bug in your case. If it was the shakey GART
> MCE itself you would get a panic because it's a unrecoverable MCE.
> More likely the driver is accessing PCI DMA mappings after they got
> unmapped, which is a serious bug, but somehow not serious enough that
> the northbridge triggers the MCE.
>
> I was confused by your statement that the SuSE 8.2 beta9 kernel
> generated that. It didn't because it doesn't contain that old code.
>
> What does a modern kernel like the SuSE one or a x86-64.org kernel
> generate exactly?
>
I have reinstalled SuSE now, and I apologise as I was only partially
correct. I do get errors, but they are slightly different from RH. They
appear to be saying the same thing, though. Every 30 seconds I get:
Aug 11 10:37:06 terra kernel: Northbridge status 9405c00000000a13
Aug 11 10:37:06 terra kernel: ECC syndrome bits b
Aug 11 10:37:06 terra kernel: extended error ecc error
Aug 11 10:37:06 terra kernel: link number 0
Aug 11 10:37:06 terra kernel: corrected ecc error
Aug 11 10:37:06 terra kernel: error address valid
Aug 11 10:37:06 terra kernel: error enable
Aug 11 10:37:06 terra kernel: previous error lost
Aug 11 10:37:06 terra kernel: error address 00000000003e4710
Aug 11 10:37:36 terra kernel: Northbridge status 9405c00000000813
Aug 11 10:37:36 terra kernel: ECC syndrome bits b
Aug 11 10:37:36 terra kernel: extended error ecc error
Aug 11 10:37:36 terra kernel: link number 0
Aug 11 10:37:36 terra kernel: corrected ecc error
Aug 11 10:37:36 terra kernel: error address valid
Aug 11 10:37:36 terra kernel: error enable
Aug 11 10:37:36 terra kernel: previous error lost
Aug 11 10:37:36 terra kernel: error address 00000000003c4220
These suggest it's just reporting ECC corrections. Why would it do this
exactly every 30 seconds? (or is that just the reporting interval?)
# uname -a
Linux terra 2.4.19-SMP #1 SMP Wed Jun 25 21:37:18 UTC 2003 x86_64
unknown unknown GNU/Linux
thanks for the help,
-Simon
next prev parent reply other threads:[~2003-08-10 22:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <gC1o.2gU.5@gated-at.bofh.it>
2003-08-05 0:11 ` MSI K8D-Master - GART error 3 Andi Kleen
2003-08-05 0:45 ` Simon Garner
2003-08-05 13:42 ` Andi Kleen
2003-08-10 22:43 ` Simon Garner [this message]
2003-08-10 22:56 ` Andi Kleen
2003-08-12 23:22 ` Simon Garner
2003-08-04 1:05 Simon Garner
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