Subject: kern/34688: cd(4) regression
To: None <kern-bug-people@netbsd.org, gnats-admin@netbsd.org,>
From: None <jakllsch@kollasch.net>
List: netbsd-bugs
Date: 10/01/2006 18:30:01
>Number:         34688
>Category:       kern
>Synopsis:       cd(4) can't read all of a DVD anymore
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Oct 01 18:30:00 +0000 2006
>Originator:     Jonathan A. Kollasch
>Release:        NetBSD 4.0_BETA
>Organization:
>Environment:
System: NetBSD santraginus.kollasch.net 4.0_BETA NetBSD 4.0_BETA (SANTRAGINUS) #1: Thu Sep 14 15:07:32 CDT 2006 root@santraginus.kollasch.net:/usr/src/sys/arch/i386/compile/SANTRAGINUS i386
Architecture: i386
Machine: i386
>Description:
Recent versions of cd(4) don't allow all of a DVD to be read.
However, programs using libdvdread don't seem to have a problem.

>How-To-Repeat:
Obtain a DVD larger than 400000 (2k) sectors.
Then try to read beyond 400000 sectors, on both a 3.x
series kernel, and a 4.0_BETA kernel.

If it makes a difference my DVD drive is:
<HL-DT-STCD-RW/DVD DRIVE GCC-4243N, , 1.08>

>Fix:
Perhaps revert whatever change broke this.