I hope this is going to the right list/group/etc, as I got this email address from someone on #kernelnewbies... Attempting to mkraid /dev/md0 a raid5 array using a Buslogic Flashpoint fast SCSI PCI card will always hard lock the system at exactly 2% complete. There is no oops or log, and it's a total lockup. I can't even switch virtual terminals when it locks. Using an AHA-2940UW in place of the buslogic works perfectly. This is using kernel 2.2.17 with the raid 0.90 B0 patch which applied cleanly. I was wondering if it was raid, but since the 2940 worked, I started to wonder about the Buslogic card driver maybe. root@userhost:~# cat /proc/mdstat Personalities : [linear] [raid0] [raid1] [raid5] read_ahead 1024 sectors md0 : active raid5 sdd1[2] sdc1[1] sdb1[0] 4185856 blocks level 5, 4k chunk, alg orithm 0 [3/3] [UUU] resync=68% finish=17.8min unused devices: <none> root@userhost:~# A cut-and-paste of the rebuild in progress. It completed normally and was usable after that on the 2940. I will test any other variations of tests I can think of and give the results. Any information on even how I can troubleshoot this further would be appreciated! For replies (If this is a mailing list), please cc: me as well, as I am not on the mailing list. Diamon - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/