Further to the last post. These are the errors I see from pata_marvell on boot with drives attached to the controller if I leave everything as default.
pata_marvell 0000:03:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 pata_marvell 0000:03:00.0: setting latency timer to 64 scsi2 : pata_marvell scsi3 : pata_marvell ata3: PATA max UDMA/100 cmd 0xef00 ctl 0xee00 bmdma 0xeb00 irq 16 ata4: PATA max UDMA/133 cmd 0xed00 ctl 0xec00 bmdma 0xeb08 irq 16 BAR5:00:04 01:7F 02:22 03:C8 04:02 05:00 06:00 07:80 08:00 09:00 0A:00 0B:00 0C:1F 0D:00 0E:00 0F:00 ata4.01: qc timeout (cmd 0xec) ata4.01: failed to IDENTIFY (I/O error, err_mask=0x4) ata4: link is slow to respond, please be patient (ready=0) ata4: device not ready (errno=-16), forcing hardreset ata4: link is slow to respond, please be patient (ready=0) ata4: SRST failed (errno=-16) ata4: link is slow to respond, please be patient (ready=0) ata4: SRST failed (errno=-16) ata4: link is slow to respond, please be patient (ready=0) ata4: SRST failed (errno=-16) ata4: SRST failed (errno=-16) ata4: reset failed, giving up ata4: link is slow to respond, please be patient (ready=0) ata4: device not ready (errno=-16), forcing hardreset ata4: soft resetting link ata4: link is slow to respond, please be patient (ready=0) ata4: SRST failed (errno=-16) ata4: soft resetting link ata4: link is slow to respond, please be patient (ready=0) ata4: SRST failed (errno=-16) ata4: soft resetting link ata4: link is slow to respond, please be patient (ready=0) ata4: SRST failed (errno=-16) ata4: soft resetting link ata4: SRST failed (errno=-16) ata4: reset failed, giving up ata4: EH complete If I blacklist pata_marvell and set ahci.enable_marvell=1 I get similar problems. ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen ata4.00: failed command: IDENTIFY DEVICE ata3.00: failed command: IDENTIFY DEVICE ata3.00: cmd ec/00:01:00:00:00/00:00:00:00:00/00 tag 0 pio 512 in res 40/00:00:1f:00:00/00:00:00:00:00/e0 Emask 0x4 (timeout) ata3.00: status: { DRDY } ata4.00: cmd ec/00:01:00:00:00/00:00:00:00:00/00 tag 0 pio 512 in res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) ata3: hard resetting link ata4.00: status: { DRDY } ata4: hard resetting link ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata4.00: configured for UDMA/133 ata4: EH complete eth0: no IPv6 routers present ata3.00: qc timeout (cmd 0xec) ata3.00: failed to IDENTIFY (I/O error, err_mask=0x4) ata3.00: revalidation failed (errno=-5) ata3: hard resetting link ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata3.00: qc timeout (cmd 0xec) ata3.00: failed to IDENTIFY (I/O error, err_mask=0x4) ata3.00: revalidation failed (errno=-5) ata3: limiting SATA link speed to 1.5 Gbps ata3: hard resetting link ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 310) Cheers, D. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org