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Re: pagebuf_prepare_write doesn't kmap the page

To: David Wragg <dpw@xxxxxxxxxxxx>
Subject: Re: pagebuf_prepare_write doesn't kmap the page
From: Aldert Zomer <A.L.Zomer@xxxxxxxxxxx>
Date: Wed, 31 Jan 2001 13:57:26 +0100
Cc: linux-xfs@xxxxxxxxxxx
References: <y7rzog799ui.fsf@xxxxxxxxxxxxxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
David Wragg wrote:
> 
> I'm testing XFS (from CVS as of sometime yesterday) on a machine with
> 1GB memory and the kernel built with CONFIG_HIGHMEM.  The kernel
> contains code of my own which is provoking the problem, though it
> isn't the root cause.

Hi,

I'm using XFS on a SMP machine with 2 GB, also built with
CONFIG_HIGHMEM. I'm receiving these errors after the machine has been up
for a while. I didn't have this problem with the standard 2.4.0 kernel
or with a 2.2.18 kernel. Or my memory is suddenly faulty, or perhaps
there is a problem with the 2.4.0-XFS kernel. Can anyone help me here?

It's a redhat7 box, all the latest patches applied, 2.4.0-XFS kernel
from cvs (from 30 januari) build with kgcc.

snippet from /var/log/messages:

Jan 30 17:01:49 molgen kernel: Uhhuh. NMI received. Dazed and confused,
but trying to continue
Jan 30 17:01:49 molgen kernel: Uhhuh. NMI received. Dazed and confused,
but trying to continue
Jan 30 17:01:49 molgen kernel: You probably have a hardware problem with
your RAM chips
Jan 30 17:01:49 molgen kernel: You probably have a hardware problem with
your RAM chips

I've placed /var/log/dmesg online for some more information about my
system:

http://molgen.biol.rug.nl/dmesg

some information about mounted partitions:

[root@molgen html]# mount
/dev/hda8 on / type ext2 (rw)
none on /proc type proc (rw)
/dev/hda1 on /boot type ext2 (rw)
/dev/hda6 on /home type ext2 (rw)
/dev/hda5 on /usr type ext2 (rw)
/dev/hda7 on /var type ext2 (rw)
none on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/sda1 on /mnt/sda1 type ext2 (rw)
/dev/sdb1 on /mnt/sdb1 type xfs (rw)




-- 
Ing. Aldert Zomer,                      | Tel: +31 50 36 32 360
Research Technician,                    | Fax: +31 50 36 35 205
IMEnz Bioengineering,                   | Email: zomeral@xxxxxxxxxxx
PO BOX 14, 9750 AA Haren, Netherlands   | Homepage: http://www.imenz.com
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