kern/41020: cdplay info only works once after reboot

[lars.nordlund%hem.utfors.se@localhost]

>Number:         41020
>Category:       kern
>Synopsis:       cdplay info only works once after reboot
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Mar 15 13:25:00 +0000 2009
>Originator:     Lars Nordlund
>Release:        NetBSD-5.0RC2
>Organization:
>Environment:
NetBSD laphroaig 5.0_RC2 NetBSD 5.0_RC2 (LAPHROAIG) #1: Tue Feb 24 23:27:48 CET 
2009  
lars@laphroaig:/home/lars/tmp/netbsd-5-obj_amd64/sys/arch/amd64/compile/LAPHROAIG
 amd64

>Description:
I noticed that 'cdplay info' only works on one disc, then I have to
reboot before being able to test on the next disc. This is very annoying when 
converting a CD collection into mp3s/oggs.

%cdplay info
[...information about disc...]
%cdplay eject; cdplay close
%cdplay info
cdplay: ioctl(CDIOREADTOCHEADER): Input/output error
zsh: exit 255   cdplay info

It seems to be related to fetching of cd info, as the same thing
happens with audio/cd-discid too.

I see the behaviour on NetBSD-5.99.8/i386 and NetBSD-5.0RC2/amd64. The
cdrom is in both cases an IDE drive.

>How-To-Repeat:
cdplay eject; cdplay close; cdplay info
>Fix:
Reboot.