>This is all happening on my NetBSD-1.5.1_BETA/i386 box.  I'm using
>ipf/ipnat and rp-pppoe for connectivity & firewall.
>
>Its a mystery to me.  But just incase anyone else might experience the
>same frustrating problem, I thought I'd report it.  Anyone care to take a
>crack at the cause of this?  Since this problem is completely repeatable
>on my machine, I'm willing to do experiments (after I get back from
>Floridia on the 26th) to help narrow down the cause.

	if you could enable DDB and get the kernel stack trace (by tapping
	"trace" against DDB prompt) it will be really helpful.

itojun