2004-04-29 14:03:16

by Alexander v. Buelow

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Subject: Bug on Quad Opteron in 2.6.6-rc3

Hi,

I use a quad opteron machine based on the fedora core 2 test 3 release.
I compiled a kernel 2.6.6-rc3 myself and the machine crashes when
mounting the rootfs. I tested kernel 2.6.6-rc2 with exact the same
.config and it works fine, the same with kernel 2.6.6-rc1.

I send you my .config, the syslogs and the output of ksymoops.

Regards,

Alexander

--
-----------------------------------------------------------------------
Dipl.-Ing. Alexander von Buelow http://www.rcs.ei.tum.de
Institute for Real-Time Computersystems (RCS) fon +49/89-289-23556
Technische Universitaet Muenchen, D-80290 Muenchen fax +49/89-289-23555


Attachments:
messages.txt (15.27 kB)
kernel-config-2.6 (19.32 kB)
ksymoops.txt (3.88 kB)
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2004-04-30 21:17:29

by Andi Kleen

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Subject: Re: Bug on Quad Opteron in 2.6.6-rc3

"Alexander v. Buelow" <[email protected]> writes:

> Hi,
>
> I use a quad opteron machine based on the fedora core 2 test 3 release.
> I compiled a kernel 2.6.6-rc3 myself and the machine crashes when
> mounting the rootfs. I tested kernel 2.6.6-rc2 with exact the same
> .config and it works fine, the same with kernel 2.6.6-rc1.

Apply the appended patch.

-Andi

diff -puN include/asm-x86_64/processor.h~a include/asm-x86_64/processor.h
--- 25/include/asm-x86_64/processor.h~a Fri Apr 30 11:24:58 2004
+++ 25-akpm/include/asm-x86_64/processor.h Fri Apr 30 11:25:28 2004
@@ -20,6 +20,8 @@
#include <asm/mmsegment.h>
#include <linux/personality.h>

+#define ARCH_MIN_TASKALIGN L1_CACHE_BYTES
+
#define TF_MASK 0x00000100
#define IF_MASK 0x00000200
#define IOPL_MASK 0x00003000