i386/106838: burncd doesn't erase 700MB CD-RWs on FreeBSD 5.5, 6.1 and 6.2

Sun Dec 17 10:00:35 PST 2006

>Number:         106838
>Category:       i386
>Synopsis:       burncd doesn't erase 700MB CD-RWs on FreeBSD 5.5, 6.1 and 6.2
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Dec 17 18:00:26 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Pawe&#322;
>Release:        6.2 prerelease
>Organization:
>Environment:
FreeBSD Sabat2 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #0: Mon Dec  4 06:47:00 UTC 2006     root at Sabat2.localdomain:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
When i try to erase (or blank) a 700MB cdrw, burncd gets stock and in dmesg there is a message: "acd0: FAILURE - READ_CAPACITY ILLEGAL REQUEST asc=0x27 ascq=0x00". I had the same problem in FreeBSD 5.5 Release, 6.1 Release. Now on 6.2 Prelease too. But when i want to erase small eg. 185 cdrw it work's fine, except it never ends. I have <LITE-ON LTR-16102B/OS0E> at ata1-master UDMA33. With burning CDs i have no problems.
>How-To-Repeat:
Burn something on 700mb cdrw and then try to erase it with burncd erase.
>Fix:

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