On Mon, Jan 28, 2008 at 05:35:58PM -0600, thus spake Robert Hancock: > Any ideas guys? When the drive is plugged in, a stream of this shows up. It > would seem like the controller is throwing hotplug interrupts but we never > seem to get a "SATA link up". This is on nForce3, btw. I just happened to upgrade to kernel 2.6.24 and the problem is gone. I just have a few SError messages that appear to be harmless: ata2: exception Emask 0x10 SAct 0x0 SErr 0x50000 action 0xa frozen ata2: SError: { PHYRdyChg CommWake } ata2: hard resetting link ata2: SATA link down (SStatus 0 SControl 300) ata2: EH complete ata2: exception Emask 0x10 SAct 0x0 SErr 0x1d0000 action 0xa frozen ata2: SError: { PHYRdyChg CommWake 10B8B Dispar } ata2: hard resetting link ata2: port is slow to respond, please be patient (Status 0x80) ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata2.00: ATA-8: ST3500320AS, SD15, max UDMA/133 ata2.00: 976773168 sectors, multi 0: LBA48 NCQ (depth 0/32) ata2.00: configured for UDMA/133 ata2: EH complete and then the usual SCSI messages about the newly seen drive. The scsiadd -r command works every time and does stop the disk indeed : sd 1:0:0:0: [sdb] Synchronizing SCSI cache sd 1:0:0:0: [sdb] Stopping disk ata2.00: disabled and then when I switch the drive off : ata2: exception Emask 0x10 SAct 0x0 SErr 0x1990000 action 0xa frozen ata2: SError: { PHYRdyChg 10B8B Dispar LinkSeq TrStaTrns } ata2: hard resetting link ata2: SATA link down (SStatus 0 SControl 300) ata2: EH complete So thanks for the help and sorry for the bother. =) -- Everything is more fun naked except cooking with grease. - To unsubscribe from this list: 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