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SubjectRe: [PATCH] JMicron JM20337 USB-SATA data corruption bugfix - device 152d:2338
Ok, I looked into this a little bit further...

K3B provides an interesting log:

first, this is repeated 3 times:

(K3bDevice::ScsiCommand) failed:
command: MODE SELECT (55)
errorcode: 70
sense key: ILLEGAL REQUEST (5)
asc: 26
ascq: 0

then it shows:

(K3bDevice::ScsiCommand) failed:
command: GET PERFORMANCE (ac)
errorcode: 0
sense key: NO SENSE (2)
asc: 0
ascq: 0
(K3bDevice::Device) /dev/scd0: GET PERFORMANCE length det failed.

And then all commands from then on fail

strace indicate this is sent via SG_IO IOCTL (unfortunatelly, strace
doen't show the contents in the ioctl)

I don't know if the device is supposed to stop working when receiving
an unkown command (like it is apparently doing), also because
apparently cdrecord doesn't send this command but fails anyway

--
-
Thiago Galesi


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