kern/102363: "Resource temporarily unavailable" message from dvd+rw-tools attempting to burn dual layer discs

[Michael Hayes]

>Number:         102363
>Category:       kern
>Synopsis:       "Resource temporarily unavailable" message from dvd+rw-tools attempting to burn dual layer discs
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Aug 21 22:10:20 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Michael Hayes
>Release:        6.1
>Organization:
>Environment:
FreeBSD mikescomputer.lan 6.1-STABLE FreeBSD 6.1-STABLE #0: Mon Aug 14 20:02:01 EDT 2006     mthayes at mikescomputer.lan:/usr/obj/usr/src/sys/SMP  i386
>Description:
I am using dvd+rw-tools 6.1 to burn DVDs. I cannot get the dual layer DVD burning to work. Any other disc works, but I can never succeed with dual layer discs. Here is my debug output:

growisofs -dvd-compat -Z /dev/cd1=DVD.iso -speed=2
Executing 'builtin_dd if=DVD.iso of=/dev/pass5 obs=32k seek=0'
/dev/pass1: splitting layers at 1992528 blocks
:-[ SEND DVD+R DOUBLE LAYER RECORDING INFORMATION failed with 
SK=2h/ASC=04h/ACQ=01h]: Resource temporarily unavailable

I am using Verbatim DVD+RW DL discs if this helps any.

Here are my system specs:

Chaintech VNF4/Ultra mobo w/RAID0 turned on for boot/data drives
AMD Athlon 64 X2 4400+
2x Seagate 80GB drives (SATA)
Lite-ON SOHW-832S DVD+R dual layer burner
Lite-ON SOHW-1633S DVD+R dual layer burner (converted with firmware to Sony DRU-710A)
Sound Blaster Audigy 2ZS sound card
480W Antec Neo power supply
Shuttle 6-in-1 media reader
APC BX1500 battery backup (apcupsd installed)

The kernel was updated 8/14 and ports are current. If I could find a solution to this problem, it would be most helpful.
>How-To-Repeat:
Burn a dual layer DVD in any application that uses dvd+rw-tools on one of these drives (I suspect it's the drive?) I am using K3b.
>Fix:

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