Neil Brown schrieb:
> On Wednesday December 22, kreide@online.no wrote:
> 
>>I am running kernel 2.6.9-gentoo-r10 on an Athlon XP 2400+ computer with a SiI 
>>3114 SATA controller hosting 4 WD2500JD-00G drives. I have combined these 
>>drives into a raid5 array using software raid, but unfortunately the array is 
>>not stable. I have tried several filesystems (ext3, reiserfs, xfs), but after 
>>copying several gigabytes of data into the array (using scp) and then trying 
>>to read them back (using rsync to compare over the network) always results in 
>>data corruption. Here is the output from 'dmesg':
>>
>>kernel BUG at drivers/md/raid5.c:813!

Have you a bios option called ext-p2p discard time? Try setting it 
higher. I posted another thread about sii3112 at lkml about this issue...

Prakash