>I have a 1.4T (the 20000213 i386 snapshot) that I have been stressing the
>network of in the past day or so ...   This is what netstat-m tells me at the
>minute:
(snip)

	Does the following steps make difference?
	1. disable IPv6 (remove "options INET6) and IPsec, and
	2. change the value of MINCLSIZE from (MHLEN + 1) to (MHLEN + MLEN + 1)
	3. build a new kernel
	4. try the same test

	Due to mbuf simplification in IPv6 code (*), 1.4[A-Z] frequently
	allocates cluster mbuf than before.  If this bites people, I'll need
	to switch IPv6 code to new mbuf manipulation framework (m_pulldown,
	sys/kern/uipc_mbuf2.c) sooner.
	I have been testing m_pulldown in KAME code, and is working just fine
	for me.  I thought of testing it a bit more longer locally, but if
	this fixes the problem, I'll bring it in sooner.

	(*) m_pullup is not suitable for IPv6 traffic, due to bigger headers
	and chained headers.

itojun