usb disc device is not present in 5.4-p1

Hi,

After upgraded to 5.4-p1 from 5.3 stable, the
insertion of the usb disc is no longer able to
activate the creation of the usb device.
In my case, when the usb disc inserted in the usb
port, the kernel system assigned /dev/da0s? to the usb
disc when it was in 5.3, but now this is not happened
any more, and there is error being logged to the
/var/log/messages file as shown below:


Jun 16 16:28:22 laptop kernel: umass0: vendor 0x1043
product 0x8006, rev 1.10/1.00, addr 3
Jun 16 16:28:23 laptop kernel: da0 at umass-sim0 bus 0
target 0 lun 0
Jun 16 16:28:23 laptop kernel: da0: <Generic USB Flash
Drive 1.04> Removable Direct Access SCSI-2 device
Jun 16 16:28:23 laptop kernel: da0: 1.000MB/s
transfers
Jun 16 16:28:23 laptop kernel: da0: Attempt to query
device size failed: NOT READY, Medium not present
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
CAM Status: SCSI Status Error
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
SCSI Status: Check Condition
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
NOT READY asc:3a,0
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
Medium not present
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
Unretryable error
Jun 16 16:28:23 laptop kernel: Opened disk da0 -> 6
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
CAM Status: SCSI Status Error
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
SCSI Status: Check Condition
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
NOT READY asc:3a,0
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
Medium not present
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
Unretryable error
Jun 16 16:28:23 laptop kernel: Opened disk da0 -> 6
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
CAM Status: SCSI Status Error
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
SCSI Status: Check Condition
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
NOT READY asc:3a,0
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
Medium not present
Jun 16 16:28:23 laptop kernel: (da0:umass-sim0:0:0:0):
Unretryable error
Jun 16 16:28:23 laptop kernel: Opened disk da0 -> 6

ls shown that there is only one device exist:
# ls -l /dev/da0*
crw-r----- 1 root operator 4, 23 Jun 16 14:35 /dev/da0

Mount command failed with the following message:
# mount_msdosfs /dev/da0 /mnt
mount_msdosfs: /dev/da0: Device not configured

How can I fix this error?

Thanks
Sam



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