Hi all, I happen to have a motherboard with an onboard M5281 controller that provides extra sata and pata ports. Up until now, I've never had a use for it, but I've been trying to use it with some spare drives I now have, and it's been resulting in errors while reading from the drive, and the system locks up with a sufficiently long sustained transfer. I observe identical behaviour with 2.6.15.4 and 2.6.16-rc4, which doesn't really surprise me as the uli driver is basically unchanged between them. My symptoms appear identical to the ones described here: http://www.ussg.iu.edu/hypermail/linux/kernel/0503.2/1378.html > ata13: translated ATA stat/err 0x51/84 to SCSI SK/ASC/ASCQ 0xb/47/00 > ata13: status=0x51 { DriveReady SeekComplete Error } > ata13: error=0x84 { DriveStatusError BadCRC } In my case, I have a uniprocessor preempt kernel. I have tried with maxtor and hitachi drives which both work fine when connected to a via vt6421 controller card that I also have. Interestingly, the frequency of BadCRC errors seems to be inversely related to the transfer speed. I tried forcing it to use PIO for transfers and this caused a significant increase in the number of errors reported. In fact, it seemed to me that more errors were reported with the hitatchi vs. the maxtor and those report themselves as udma/100 and udma/133 respectively. I'm rather out of ideas for what to do next, and I'd really like to be able to take advantage of this controller if I can. Thanks, --phil - : send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
