kern/39753: uvideo use crashes -current on a Thinkpad T61

[Ephaeton%gmx.net@localhost]

>Number:         39753
>Category:       kern
>Synopsis:       uvideo use crashes -current on a Thinkpad T61
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Oct 16 23:35:01 +0000 2008
>Originator:     Martin S. Weber
>Release:        NetBSD 4.99.73
>Organization:
        
>Environment:
        
        
System: NetBSD agamemnon.entropie.local 4.99.73 NetBSD 4.99.73 (AGAMEMNON) #8: 
Thu Oct 16 16:40:49 EDT 2008 
root%agamemnon.entropie.local@localhost:/home/netbsd/obj/sys/arch/i386/compile/AGAMEMNON
 i386
Architecture: i386
Machine: i386
>Description:
When using the uvideo on my Thinkpad T61, the system crashes.
I have put some photos of panics and backtraces here:
2 week old kernel:
http://ayaken.net/crash1-bt1.jpg
http://ayaken.net/crash1-bt2.jpg
http://ayaken.net/crash-diagnostic-bt.jpg
http://ayaken.net/crash2-bt2.jpg
Kernel from today:
http://ayaken.net/crash3-1.jpg
http://ayaken.net/crash3-2.jpg
dmesg output including UVIDEO_DEBUG is here:
http://ayaken.net/dmesg-uvideo-debug
        
>How-To-Repeat:
        mplayer -vo null -fps <whatever> tv://
        (I used both 10 and 50 for whatever)
        
>Fix:
        Dunno.
        

>Unformatted: