kern/71310: kernel crash on rtprio pid priority change

[Jonas Nagel]

>Number:         71310
>Category:       kern
>Synopsis:       kernel crash on rtprio pid priority change
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Sep 02 20:30:28 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Jonas Nagel
>Release:        FreeBSD 5.3-BETA2 i386
>Organization:
-
>Environment:
System: FreeBSD hirtnb03.hirt.ch 5.3-BETA2 FreeBSD 5.3-BETA2 #0: Wed Sep  1 04:00:51 CES
T 2004     root at hirtnb03.hirt.ch:/usr/obj/usr/src/sys/GENERIC  i386

>Description:
	Changing the rtprio of a process id to 0 always leads to a kernel panic! (see below)

>How-To-Repeat:
	root at hirtnb03:~# cvsup -L0 -h cvsup11.freebsd.org /usr/share/examples/cvsup/ports-supfile &
	[1] 480
	root at hirtnb03:~# rtprio 0 -480

>Fix:

	no idea, but it seems to be quite a showstopper!

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