kern/40004: ps core dumps when working on kernel core dump

[bouyer%antioche.lip6.fr@localhost]

>Number:         40004
>Category:       kern
>Synopsis:       ps core dumps when working on kernel core dump
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Nov 22 14:05:00 +0000 2008
>Originator:     Manuel Bouyer
>Release:        NetBSD 5.0_BETA
>Organization:
>Environment:
System: NetBSD antioche.lip6.fr 5.0_BETA NetBSD 5.0_BETA (ANTIOCHE5) #2: Thu 
Nov 20 23:55:28 CET 2008 
bouyer@roll:/dsk/l1/misc/bouyer/tmp/i386/obj/dsk/l1/misc/bouyer/netbsd-5/src/sys/arch/i386/compile/ANTIOCHE5
 i386
Architecture: i386
Machine: i386
>Description:
        ps cores dump when working on a kernel core dump:
antioche:/var/crash#ps -N netbsd.10 -M netbsd.10.core -axu
Segmentation fault (core dumped)
Core was generated by `ps'.
Program terminated with signal 11, Segmentation fault.
#0  0xbbbcb46a in kvm_getproc2 () from /lib/libkvm.so.5
(gdb) where
#0  0xbbbcb46a in kvm_getproc2 () from /lib/libkvm.so.5
#1  0x0804c596 in main ()

>How-To-Repeat:
        make kernel crash and dump core
        reboot
        try to read process states from core dump
>Fix: