kern/37814: unionfs panic.

[christos%zoulas.com@localhost]

>Number:         37814
>Category:       kern
>Synopsis:       unionfs panics.
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jan 20 00:35:00 +0000 2008
>Originator:     Christos Zoulas
>Release:        NetBSD 4.99.49
>Organization:
        none by trying.
>Environment:
System: NetBSD t61.localnet 4.99.49 NetBSD 4.99.49 (GENERIC) #0: Wed Jan 16 
12:47:21 EST 2008  
ljt%t61.localnet@localhost:/p/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: amd64
Machine: amd64 
>Description:
        locking issue on unionfs
>How-To-Repeat:
        /sbin/mount -t union -o nodev,nosuid ~/sysadm/NetBSD/p/src /p/src
        cd /p/src/etc
        ls -alF

        http://www.zoulas.com/images/NetBSD/imgp0213.jpg
        http://www.zoulas.com/images/NetBSD/imgp0214.jpg
>Fix:
        unknown