On 5/26/14, 2:16 PM, Hans Petter Selasky wrote:
On 05/26/14 05:16, Ronald F. Guilmette wrote:
2) As can be seen in the "desktop2-varlogmessages.txt' log file,
on that
one system there were also a number of additional errors logged
after the
Hitachi Touro Mobile drive was plugged in:
(probe0:umass-sim2:2:0:0): INQUIRY. CDB: 12 00 00 00 24 00
(probe0:umass-sim2:2:0:0): CAM status: CCB request completed
with an error
(probe0:umass-sim2:2:0:0): Retrying command
(probe0:umass-sim2:2:0:0): INQUIRY. CDB: 12 00 00 00 24 00
(probe0:umass-sim2:2:0:0): CAM status: CCB request completed
with an error
(probe0:umass-sim2:2:0:0): Retrying command
(probe0:umass-sim2:2:0:0): INQUIRY. CDB: 12 00 00 00 24 00
(probe0:umass-sim2:2:0:0): CAM status: CCB request completed
with an error
(probe0:umass-sim2:2:0:0): Retrying command
Hi,
This error is typical for no-synchronize-cache.
1)
Lookup the device above using "usbconfig".
2)
Add the quirk, where X.Y are the numbers after "ugen".
usbconfig -d X.Y add_quirk UQ_MSC_NO_SYNC_CACHE
3)
Replug this device.
I've seen this pattern a bit too much.
user: I see error X
dev: turn on quirk Y, disabling {lock device, queuing, syncing,
block erase, etc.}
Would it be possible for part of the attach code for drives, to silently
run through a bunch of these commands and just turn off those that
return errors? In the Old (old) SCSI code we did this in some devices,
and in some cases there were capability descriptions in some of the
sense pages.
(though I think that was on some proprietary subdrivers).
--HPS
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