I have a USB compact flash reader-writer which is normally connected to
my computer all the time but rarely contains a compact flash card. Here
is a snippet from a verbose dmesg with FreeBSD 9.0-RC3:


ugen0.5: <vendor 0x05e3> at usbus0
umass0: <vendor 0x05e3 USB TO IDE, class 0/0, rev 2.00/0.32, addr 5> on
usbus0
umass0: SCSI over Bulk-Only; quirks = 0x4101
umass0:2:0:-1: Attached to scbus2
(probe0:umass-sim0:0:0:0): SCSI status error
(probe0:umass-sim0:0:0:0): INQUIRY. CDB: 12 1 0 0 ff 0
(probe0:umass-sim0:0:0:0): CAM status: SCSI Status Error
(probe0:umass-sim0:0:0:0): SCSI status: Check Condition
(probe0:umass-sim0:0:0:0): SCSI sense: NOT READY asc:3a,0 (Medium not
present)
(probe0:umass-sim0:0:0:0): Error 6, Unretryable error
(probe0:umass-sim0:0:0:0): Down reving Protocol Version from 2 to 0?
...
(probe0:umass-sim0:0:0:0): AutoSense failed
(probe0:umass-sim0:0:0:0): Error 5, Unretryable error
GEOM: new disk da0
pass2 at umass-sim0 bus 0 scbus2 target 0 lun 0
pass2: <Generic STORAGE DEVICE 1.00> Removable Direct Access SCSI-0 device
pass2: 1.000MB/s transfers
...
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Error 5, Retries exhausted
(da0:umass-sim0:0:0:0): got CAM status 0x4
(da0:umass-sim0:0:0:0): fatal error, failed to attach to device
(da0:umass-sim0:0:0:0): lost device - 0 outstanding
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Error 5, Retries exhausted
(da0:umass-sim0:0:0:0): removing device entry
Opened disk da0 -> 5


Everything works normally, but the above events take about half a
minute and bring the booting-up procedure to a halt while the
retries finish. Is there a umass quirk I could enable to speed up
whatever is happening here? usbconfig -d 0.5 dump_device_desc says:

ugen0.5: <USB TO IDE vendor 0x05e3> at usbus0, cfg=0 md=HOST spd=FULL
(12Mbps) pwr=ON

bLength = 0x0012
bDescriptorType = 0x0001
bcdUSB = 0x0200
bDeviceClass = 0x0000
bDeviceSubClass = 0x0000
bDeviceProtocol = 0x0000
bMaxPacketSize0 = 0x0040
idVendor = 0x05e3
idProduct = 0x0703
bcdDevice = 0x0032
iManufacturer = 0x0000 <no string>
iProduct = 0x0001 <retrieving string failed>
iSerialNumber = 0x0000 <no string>
bNumConfigurations = 0x0001


Here's the corresponding dmesg output from 8.2-STABLE:

ugen0.5: <vendor 0x05e3> at usbus0
umass0: <vendor 0x05e3 USB TO IDE, class 0/0, rev 2.00/0.32, addr 5> on usbus0
umass0:  SCSI over Bulk-Only; quirks = 0x0000
umass0: Get Max Lun not supported (USB_ERR_STALLED)
umass0:2:0:-1: Attached to scbus2
(probe0:umass-sim0:0:0:0): SCSI status error
(probe0:umass-sim0:0:0:0): INQUIRY. CDB: 12 1 0 0 ff 0
(probe0:umass-sim0:0:0:0): CAM status: SCSI Status Error
(probe0:umass-sim0:0:0:0): SCSI status: Check Condition
(probe0:umass-sim0:0:0:0): SCSI sense: NOT READY asc:3a,0 (Medium not present)
(probe0:umass-sim0:0:0:0): Error 6, Unretryable error
(probe0:umass-sim0:0:0:0): Down reving Protocol Version from 2 to 0?
(probe0:umass-sim0:0:0:0): SCSI status error
(probe0:umass-sim0:0:0:0): TEST UNIT READY. CDB: 0 0 0 0 0 0
(probe0:umass-sim0:0:0:0): CAM status: SCSI Status Error
(probe0:umass-sim0:0:0:0): SCSI status: Check Condition
(probe0:umass-sim0:0:0:0): SCSI sense: NOT READY asc:3a,0 (Medium not present)
(probe0:umass-sim0:0:0:0): Error 6, Unretryable error
GEOM: new disk da0
pass2 at umass-sim0 bus 0 scbus2 target 0 lun 0
pass2: <Generic STORAGE DEVICE 1.00> Removable Direct Access SCSI-0 device
pass2: 1.000MB/s transfers
(da0:umass-sim0:0:0:0): SCSI status error
(da0:umass-sim0:0:0:0): READ CAPACITY(10). CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI status: Check Condition
(da0:umass-sim0:0:0:0): SCSI sense: NOT READY asc:3a,0 (Medium not present)
(da0:umass-sim0:0:0:0): Error 6, Unretryable error
da0 at umass-sim0 bus 0 scbus2 target 0 lun 0
da0: <Generic STORAGE DEVICE 1.00> Removable Direct Access SCSI-0 device
da0: 1.000MB/s transfers
da0: Attempt to query device size failed: NOT READY, Medium not present
(da0:umass-sim0:0:0:0): SCSI status error
(da0:umass-sim0:0:0:0): READ CAPACITY(10). CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI status: Check Condition
(da0:umass-sim0:0:0:0): SCSI sense: NOT READY asc:3a,0 (Medium not present)
(da0:umass-sim0:0:0:0): Error 6, Unretryable error
Opened disk da0 -> 6
(da0:umass-sim0:0:0:0): SCSI status error
(da0:umass-sim0:0:0:0): READ CAPACITY(10). CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI status: Check Condition
(da0:umass-sim0:0:0:0): SCSI sense: NOT READY asc:3a,0 (Medium not present)
(da0:umass-sim0:0:0:0): Error 6, Unretryable error
Opened disk da0 -> 6

(which all took only a couple of seconds, compared to half a minute
with 9.0.)

When there is a flash card in the device, 9.0 behaves even worse,
taking about two and a half minutes to do this:

ugen0.5: <vendor 0x05e3> at usbus0
umass0: <vendor 0x05e3 USB TO IDE, class 0/0, rev 2.00/0.32, addr 5> on usbus0
umass0:  SCSI over Bulk-Only; quirks = 0x4101
umass0:2:0:-1: Attached to scbus2
(probe0:umass-sim0:0:0:0): Down reving Protocol Version from 2 to 0?
GEOM: new disk da0
pass2 at umass-sim0 bus 0 scbus2 target 0 lun 0
pass2: <Generic STORAGE DEVICE 1.00> Removable Direct Access SCSI-0 device
pass2: 1.000MB/s transfers
da0 at umass-sim0 bus 0 scbus2 target 0 lun 0
da0: <Generic STORAGE DEVICE 1.00> Removable Direct Access SCSI-0 device
da0: 1.000MB/s transfers
da0: 245MB (501760 512 byte sectors: 64H 32S/T 245C)
...
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Error 5, Retries exhausted
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Error 5, Retries exhausted
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Error 5, Retries exhausted
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Error 5, Retries exhausted
Opened disk da0 -> 5
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Retrying command
(da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
(da0:umass-sim0:0:0:0): Error 5, Retries exhausted
Opened disk da0 -> 5

Suggestions?                               -- George Mitchell
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