Comment 19 for bug 97325

Interesting (possible indicative?) lines in dmesg related to it821x:

[ 85.605560] apm: BIOS version 1.2 Flags 0x07 (Driver version 1.16ac)
[ 85.605563] apm: disabled - APM is not SMP safe.
[ 85.973492] it821x: can't process command 0xE5
[ 85.973514] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[ 85.973521] ata1.00: cmd e5/00:00:00:00:00/00:00:00:00:00/00 tag 0 cdb 0x0 data 0
[ 85.973522] res 50/00:01:01:00:00/00:00:00:00:00/00 Emask 0x80 (invalid argument)
[ 85.979772] ata1.00: configured for PIO
[ 85.979779] ata1: EH complete
[ 85.979806] SCSI device sda: 625142448 512-byte hdwr sectors (320073 MB)
[ 85.979816] sda: Write Protect is off
[ 85.979819] sda: Mode Sense: 00 3a 00 00
[ 85.979835] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 85.980694] it821x: can't process command 0x98
[ 85.980710] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[ 85.980715] ata1.00: cmd 98/01:00:00:00:00/00:00:00:00:00/00 tag 0 cdb 0x0 data 0
[ 85.980716] res 50/00:01:01:00:00/00:00:00:00:00/00 Emask 0x80 (invalid argument)
[ 85.987812] ata1.00: configured for PIO
[ 85.987818] ata1: EH complete
[ 85.988467] it821x: can't process command 0xB0
[ 85.988488] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[ 85.988493] ata1.00: cmd b0/d8:00:00:4f:c2/00:00:00:00:00/00 tag 0 cdb 0x0 data 0
[ 85.988495] res 50/00:01:01:00:00/00:00:00:00:00/00 Emask 0x80 (invalid argument)
[ 85.995914] ata1.00: configured for PIO
[ 85.995921] ata1: EH complete
[ 85.995932] SCSI device sda: 625142448 512-byte hdwr sectors (320073 MB)
[ 85.995942] sda: Write Protect is off
[ 85.995944] sda: Mode Sense: 00 3a 00 00
[ 85.995958] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 85.995973] SCSI device sda: 625142448 512-byte hdwr sectors (320073 MB)
[ 85.995981] sda: Write Protect is off
[ 85.995983] sda: Mode Sense: 00 3a 00 00
[ 85.995996] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 86.021418] it821x: can't process command 0xE5
[ 86.021440] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[ 86.021445] ata2.00: cmd e5/00:00:00:00:00/00:00:00:00:00/00 tag 0 cdb 0x0 data 0
[ 86.021447] res 50/00:01:01:00:00/00:00:00:00:00/00 Emask 0x80 (invalid argument)
[ 86.027846] ata2.00: configured for PIO
[ 86.027853] ata2: EH complete
[ 86.035625] SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)
[ 86.039603] sdb: Write Protect is off
[ 86.039605] sdb: Mode Sense: 00 3a 00 00
[ 86.047594] SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 86.114796] it821x: can't process command 0x98
[ 86.114813] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[ 86.114818] ata2.00: cmd 98/01:00:00:00:00/00:00:00:00:00/00 tag 0 cdb 0x0 data 0
[ 86.114819] res 50/00:01:01:00:00/00:00:00:00:00/00 Emask 0x80 (invalid argument)
[ 86.119772] ata2.00: configured for PIO
[ 86.119778] ata2: EH complete
[ 86.120002] it821x: can't process command 0xB0
[ 86.120022] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[ 86.120027] ata2.00: cmd b0/d8:00:00:4f:c2/00:00:00:00:00/00 tag 0 cdb 0x0 data 0
[ 86.120028] res 50/00:01:01:00:00/00:00:00:00:00/00 Emask 0x80 (invalid argument)
[ 86.127738] ata2.00: configured for PIO
[ 86.127745] ata2: EH complete
[ 86.131333] SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)
[ 86.131429] sdb: Write Protect is off
[ 86.131432] sdb: Mode Sense: 00 3a 00 00
[ 86.131458] SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 86.131484] SCSI device sdb: 625142448 512-byte hdwr sectors (320073 MB)
[ 86.131496] sdb: Write Protect is off
[ 86.131498] sdb: Mode Sense: 00 3a 00 00
[ 86.131531] SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 87.264874] Bluetooth: Core ver 2.11