kern/140654: growisofs/mkisofs PERFORM OPC and GET EVENT CAM/SCSI Input/output errors at start of DVD record

[Frank Durda IV]

>Number:         140654
>Category:       kern
>Synopsis:       growisofs/mkisofs PERFORM OPC and GET EVENT  CAM/SCSI Input/output errors at start of DVD record
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Nov 18 05:30:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Frank Durda IV
>Release:        8.3 i386 RC3
>Organization:
>Environment:
FreeBSD walkoff.lonestar.org 8.0-RC3 FreeBSD 8.0-RC3 #0: Tue Nov 10 07:50:36 UTC
 2009     root at almeida.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386

>Description:
When recording a DVD using the stock growisofs, it emits two
error messages at the start of each burn that it did not emit
previously when the same computer and DVD recorder were
used on FreeBSD 6.3 RELEASE i386.

The error messages growisofs now emits are:

:-( unable to PERFORM OPC: Input/output error
:-( unable to GET EVENT: Input/output error

and are emitted within 30 seconds of starting the program.
The burn continues, and appears to complete despite these
messages.   A byte-for-byte compare of the data on the
disc indicates the data track is intact, but if OPC operations
did not occur, out-of-band field could be missing/incorrect.

At the time of the two error messages, /var/log/messages
records three messages from the driver:

Nov 17 22:33:26 walkoff kernel: (cd0:umass-sim1:1:0:0): READ TOC/PMA/ATIP. CDB: 43 0 0 0 0 0 0 0 4 0
Nov 17 22:33:26 walkoff kernel: (cd0:umass-sim1:1:0:0): CAM Status: SCSI Status Error
Nov 17 22:33:26 walkoff kernel: (cd0:umass-sim1:1:0:0): SCSI Status: Check Condition
Nov 17 22:33:26 walkoff kernel: (cd0:umass-sim1:1:0:0): ILLEGAL REQUEST asc:24,0
Nov 17 22:33:26 walkoff kernel: (cd0:umass-sim1:1:0:0): Invalid field in CDB
Nov 17 22:33:26 walkoff kernel: (cd0:umass-sim1:1:0:0): Unretryable error

AND

Nov 17 22:33:56 walkoff kernel: (cd0:umass-sim1:1:0:0): READ TOC/PMA/ATIP. CDB: 43 0 0 0 0 0 0 0 4 0
Nov 17 22:33:56 walkoff kernel: (cd0:umass-sim1:1:0:0): CAM Status: SCSI Status Error
Nov 17 22:33:56 walkoff kernel: (cd0:umass-sim1:1:0:0): SCSI Status: Check Condition
Nov 17 22:33:56 walkoff kernel: (cd0:umass-sim1:1:0:0): NOT READY asc:4,8
Nov 17 22:33:56 walkoff kernel: (cd0:umass-sim1:1:0:0): Logical unit not ready, long write in progress
Nov 17 22:33:56 walkoff kernel: (cd0:umass-sim1:1:0:0): Unretryable error

AND

Nov 17 22:34:01 walkoff kernel: (cd0:umass-sim1:1:0:0): READ TOC/PMA/ATIP. CDB: 43 0 0 0 0 0 0 0 4 0
Nov 17 22:34:01 walkoff kernel: (cd0:umass-sim1:1:0:0): CAM Status: SCSI Status Error
Nov 17 22:34:01 walkoff kernel: (cd0:umass-sim1:1:0:0): SCSI Status: Check Condition
Nov 17 22:34:01 walkoff kernel: (cd0:umass-sim1:1:0:0): NOT READY asc:4,8
Nov 17 22:34:01 walkoff kernel: (cd0:umass-sim1:1:0:0): Logical unit not ready, long write in progress
Nov 17 22:34:01 walkoff kernel: (cd0:umass-sim1:1:0:0): Unretryable error


Two different types of recordable media were tested and
I got the same errors on both.

Again, these two errors did not occur on the same hardware
running on FreeBSD 6.3 RELEASE i386 just a few days ago using
the same two types of media (same spindles of media, so same
manufacture lots).

The drive under test:  (attached via USB)
Nov 17 19:17:48 walkoff kernel: cd0 at umass-sim1 bus 1 target 0 lun 0
Nov 17 19:17:48 walkoff kernel: cd0: <HP DVD Writer 1040d EH24> Removable CD-ROM SCSI-0 device
Nov 17 19:17:48 walkoff kernel: cd0: 40.000MB/s transfers
which has been in operation for a year or more.

growisofs --version
* growisofs by <appro at fy.chalmers.se>, version 7.1,
  front-ending to mkisofs: Using ".mkisofsrc"
mkisofs 2.01 (i386-unknown-freebsd8.0)


It appears that something has changed in the CAM, SCSI or some
other driver layer that makes the OPC operations that previously
worked to now be illegal or to require different commands/syntax,
changes that growisofs doesn't know about.
 
I have not found anything in the documentation that mentions either
of these errors.

As this appears to be a kernel/driver issue, I placed it in the
kern category at least for initial review.

>How-To-Repeat:
/usr/local/bin/growisofs -dvd-compat -speed=16 -Z /dev/cd0=/a/x.bin

where cd0 is a drive with a blank DVD present and /a/x.bin is
an ISO image (or really anything you are willing to put on the disc).
This is essentially a command example taken from the man page.

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: