Bad write page, under 2.4.9 kernel

["Saunders, Andrew (Magma-da/Reading-UK)" <andrews@xxxxxxxxxxxx>]

Hi there,

        I have recently installed XFS on a 2.4.9 kernel using the XFS patch 
patch-2.4.9-xfs-2001-08-26.bz2 . If I create a fairly large file using:

thor:/users/andrews# dd if=/dev/zero of=big_file bs=1M count=4096

and then issue a few

thor:/users/andrews# ls -ltr

in the directory where the file is being written I get the following messages 
logged by the kernel.

Sep 20 10:00:14 thor kernel: Bad write on page 0xc1822a30
Sep 20 10:00:27 thor kernel: Bad write on page 0xc113d8f0
Sep 20 10:00:27 thor kernel: Bad write on page 0xc16d16d0
Sep 20 10:00:28 thor kernel: Bad write on page 0xc109500c
Sep 20 10:00:28 thor kernel: Bad write on page 0xc12b2834
Sep 20 10:00:30 thor kernel: Bad write on page 0xc11d5944

Anyone got an ideas what could be causing this? The machine I am running on is 
a dual Pentium III 1Ghz, with 512Mb and has a Mylex DAC960 configured for RAID5?

I put the put the same kernel on my home computer and that seems fine. Could 
this be an SMP issue?

Many Thanks

        Andrew