System hangs on DVD device

[Julian Elischer]

Justin Smith wrote:
> FreeBSD jsmith.org 5.3-BETA4 FreeBSD 5.3-BETA4 #0: Fri Sep 17 03:00:30 
> EDT 2004     root@:/usr/obj/usr/src/sys/MYKERNEL  i386
> 
> When I try to boot, I get (after a while)
> 
> acd1: DVDROM <JLMS DVD-ROM LTD-166S/DS08> at ata1-slave UDMA40
> 
> and then
> 
> ATAPI-RESET time = 50us
> ATAPI-RESET time = 180us
> 
> endlessly repeated.  I can only boot the system after unplugging the DVD 
> drive.
> 
> Any suggestions?

turn off preemption

>