>Number:         35236
>Category:       port-hp700
>Synopsis:       df(1) reports duplicate kernfs mounts on hp700
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    port-hp700-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Dec 12 02:40:00 +0000 2006
>Originator:     David H. Gutteridge
>Release:        current/4-BETA
>Organization:
>Environment:
NetBSD arcusiv.nonus-porta.net 4.99.4 NetBSD 4.99.4 (GENERIC) #0: Wed Nov 29 11:10:54 UTC 2006  root@arcusiv.nonus-porta.net:/usr/src/sys/arch/hp700/compile/GENERIC hp700

>Description:
Sometimes duplicate entries appear for the kernfs mount when I use df(1).

[disciple@arcusiv:disciple]$ df -h
Filesystem    Size      Used     Avail Capacity  Mounted on
/dev/sd0a     1.0G       29M      929M     3%    /
/dev/sd0e     497M      4.5M      467M     0%    /var
/dev/sd0d     5.9G      927M      4.7G    16%    /usr
kernfs        1.0K      1.0K        0B   100%    /kern
kernfs        1.0K      1.0K        0B   100%    /kern

I'm not sure why that would be, and I haven't found how to duplicate this
reliably.  What I do know is that once it happens things remain that way
until a reboot.
>How-To-Repeat:
I'm not sure.  This happens for me after the machine is under moderately
heavy load, but that might be a red herring.
>Fix: