On 08/13/2013 04:36 PM, Bruce Link wrote:
On bootup, when trying to attach to a Lite-on iHOS-104 DVD drive, the kernel attempts to establish a connection to the CD drive at a variety of speeds. Ultimately it fails with a "TEST_UNIT_READY failed (err_mask=0x4)" message **************************************************************** https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1063474 **************************************************************** The relevant DMESG output is listed below: watchtv@teevee:~$ dmesg|grep ata5 [ 1.088342] ata5: SATA max UDMA/133 cmd 0x9e0 ctl 0xbe0 bmdma 0xc400 irq 23 [ 1.556031] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 1.564134] ata5.00: ATAPI: ATAPI iHOS104, WL0F, max UDMA/100 [ 1.580115] ata5.00: configured for UDMA/100 [ 6.580029] ata5.00: qc timeout (cmd 0xa0) [ 6.580036] ata5.00: TEST_UNIT_READY failed (err_mask=0x4) [ 7.048044] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 7.072129] ata5.00: configured for UDMA/100 [ 29.856040] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 29.856063] ata5.00: cmd a0/01:00:00:60:00/00:00:00:00:00/a0 tag 0 dma 96 in [ 29.856065] ata5.00: status: { DRDY } [ 29.856071] ata5: hard resetting link [ 29.856073] ata5: nv: skipping hardreset on occupied port [ 30.324070] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 30.348152] ata5.00: configured for UDMA/100 [ 35.348125] ata5.00: qc timeout (cmd 0xa0) [ 35.348132] ata5.00: TEST_UNIT_READY failed (err_mask=0x4) [ 35.348139] ata5: hard resetting link [ 35.348141] ata5: nv: skipping hardreset on occupied port [ 35.816115] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 35.840125] ata5.00: configured for UDMA/100 [ 36.835824] ata5: EH complete [ 67.840151] ata5: limiting SATA link speed to 1.5 Gbps [ 67.840159] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 67.840178] ata5.00: cmd a0/01:00:00:80:00/00:00:00:00:00/a0 tag 0 dma 16512 in [ 67.840181] ata5.00: status: { DRDY } [ 67.840187] ata5: hard resetting link [ 67.840188] ata5: nv: skipping hardreset on occupied port [ 68.308056] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 68.332176] ata5.00: configured for UDMA/100 [ 68.343497] ata5: EH complete [ 75.808054] ata5.00: limiting speed to UDMA/66:PIO4 [ 75.808061] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 75.808081] ata5.00: cmd a0/01:00:00:20:00/00:00:00:00:00/a0 tag 0 dma 16416 in [ 75.808084] ata5.00: status: { DRDY } [ 75.808089] ata5: hard resetting link [ 75.808091] ata5: nv: skipping hardreset on occupied port [ 76.276050] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 76.300125] ata5.00: configured for UDMA/66 [ 76.307490] ata5: EH complete [ 136.868049] ata5.00: limiting speed to UDMA/33:PIO4 [ 136.868058] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 136.868078] ata5.00: cmd a0/01:00:00:20:00/00:00:00:00:00/a0 tag 0 dma 16416 in [ 136.868081] ata5.00: status: { DRDY } [ 136.868087] ata5: hard resetting link [ 136.868089] ata5: nv: skipping hardreset on occupied port [ 137.332073] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 137.356170] ata5.00: configured for UDMA/33 [ 137.866272] ata5: EH complete
These NVIDIA SATA controllers are a pain as they all seem to have a different set of bugs related to hardreset, etc. What happens if you boot up without the drive connected and then plug in the cable after the system boots up?
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