5.3-Beta4 - USB floppy/CDROM drive issues

[Muthu_T at Dell.com]

Hi,

I had attached the USB floppy drive while booting with media on it.

Output taken from 'dmesg'

<boot-snip>

da0 at umass-sim0 bus 0 target 0 lun 0
da0: <TEAC FD-05PUB 1026> Removable Direct Access SCSI-0 device 
da0: 1.000MB/s transfers
da0: 1MB (2880 512 byte sectors: 64H 32S/T 1C)
umass0: Unsupported UFI command 0x35
(da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x6, scsi
status == 0x0
umass0: Unsupported UFI command 0x35
(da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x6, scsi
status == 0x0
umass0: Unsupported UFI command 0x35
(da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x6, scsi
status == 0x0
umass0: Unsupported UFI command 0x35
(da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x6, scsi
status == 0x0
umass0: Unsupported UFI command 0x35
(da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x6, scsi
status == 0x0
umass0: Unsupported UFI command 0x35
(da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x6, scsi
status == 0x0
umass0: Unsupported UFI command 0x35
(da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x6, scsi
status == 0x0
umass0: Unsupported UFI command 0x35
(da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x6, scsi
status == 0x0
umass0: Unsupported UFI command 0x35
(da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x6, scsi
status == 0x0
Mounting root from ufs:/dev/amrd0s1a
WARNING: / was not properly dismounted
WARNING: /tmp was not properly dismounted
WARNING: /usr was not properly dismounted
WARNING: /var was not properly dismounted

</boot-snip>

While disconnecting the USB Floppy drive...

<snip>
umass0: at uhub0 port 3 (addr 2) disconnected
(da0:umass-sim0:0:0:0): lost device
(da0:umass-sim0:0:0:0): removing device entry
umass0: detached
umass0: TEAC TEAC FD-05PUB, rev 1.00/0.00, addr 2
</snip>

While Reattaching the USB Floppy drive...

<snip>
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <TEAC FD-05PUB 1026> 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): READ CAPACITY. 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): NOT READY asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Unretryable error
Opened disk da0 -> 6
(da0:umass-sim0:0:0:0): READ CAPACITY. 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): NOT READY asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Unretryable error
Opened disk da0 -> 6
(da0:umass-sim0:0:0:0): READ CAPACITY. 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): NOT READY asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Unretryable error
Opened disk da0 -> 6
umass0: at uhub0 port 3 (addr 2) disconnected
(da0:umass-sim0:0:0:0): lost device
(da0:umass-sim0:0:0:0): removing device entry
umass0: detached

[Remove & Reattach the USB Floppy drive]

da0 at umass-sim0 bus 0 target 0 lun 0
da0: <TEAC FD-05PUB 1026> 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): READ CAPACITY. 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): NOT READY asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Unretryable error
Opened disk da0 -> 6
(da0:umass-sim0:0:0:0): READ CAPACITY. 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): NOT READY asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Unretryable error
Opened disk da0 -> 6
(da0:umass-sim0:0:0:0): READ CAPACITY. 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): NOT READY asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Unretryable error

[Issue the 'mount /dev/da0 /mnt' command]

Opened disk da0 -> 6
(da0:umass-sim0:0:0:0): READ CAPACITY. 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): UNIT ATTENTION asc:28,0
(da0:umass-sim0:0:0:0): Not ready to ready change, medium may have
changed
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ(10). CDB: 28 0 0 0 0 38 0 0 8 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): ABORTED COMMAND asc:4e,0
(da0:umass-sim0:0:0:0): Overlapped commands attempted
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): WRITE(10). CDB: 2a 0 0 0 0 40 0 0 1 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): ABORTED COMMAND asc:4e,0
(da0:umass-sim0:0:0:0): Overlapped commands attempted
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)

[Mount is success, I can list files using 'ls'. Trying to umount Floppy
drive, but its failing]

fsync: giving up on dirty: 0xc208c108: tag devfs, type VCHR, usecount 2,
writecount 0, refcount 4, flags (VV_OBJBUF), lock type devfs: EXCL
(count 1) by thread 0xc1b8f320 (pid 538)
	dev da0
umass0: at uhub0 port 3 (addr 2) disconnected
(da0:umass-sim0:0:0:0): lost device
umass0: detached
umass0: TEAC TEAC FD-05PUB, rev 1.00/0.00, addr 2
da1 at umass-sim0 bus 0 target 0 lun 0
da1: <TEAC FD-05PUB 1026> Removable Direct Access SCSI-0 device 
da1: 1.000MB/s transfers
da1: Attempt to query device size failed: NOT READY, Medium not present
(da1:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0 
(da1:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da1:umass-sim0:0:0:0): SCSI Status: Check Condition
(da1:umass-sim0:0:0:0): NOT READY asc:3a,0
(da1:umass-sim0:0:0:0): Medium not present
(da1:umass-sim0:0:0:0): Unretryable error
Opened disk da1 -> 6
(da1:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0 
(da1:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da1:umass-sim0:0:0:0): SCSI Status: Check Condition
(da1:umass-sim0:0:0:0): NOT READY asc:3a,0
(da1:umass-sim0:0:0:0): Medium not present
(da1:umass-sim0:0:0:0): Unretryable error
Opened disk da1 -> 6
(da1:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0 
(da1:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da1:umass-sim0:0:0:0): SCSI Status: Check Condition
(da1:umass-sim0:0:0:0): NOT READY asc:3a,0
(da1:umass-sim0:0:0:0): Medium not present
(da1:umass-sim0:0:0:0): Unretryable error
Opened disk da1 -> 6

[trying 2 times umount, its failing]

fsync: giving up on dirty: 0xc208c108: tag devfs, type VCHR, usecount 4,
writecount 0, refcount 4, flags (VV_OBJBUF), lock type devfs: EXCL
(count 1) by thread 0xc1d98af0 (pid 546)
	dev da0
fsync: giving up on dirty: 0xc208c108: tag devfs, type VCHR, usecount 4,
writecount 0, refcount 4, flags (VV_OBJBUF), lock type devfs: EXCL
(count 1) by thread 0xc1d69190 (pid 548)
	dev da0

</snip>


If I use USB CDROM, just plug & unplug, it will get trap, and reboots
after some time.

If you want any inputs, please let me know.

Thanks.
--T. Muthu Mohan