From owner-freebsd-current@FreeBSD.ORG  Mon Dec 18 07:42:40 2006
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Date: Mon, 18 Dec 2006 11:51:22 +0900
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From: gnn@freebsd.org
To: "Andrew Pantyukhin" <infofarmer@freebsd.org>
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Cc: David Xu <davidxu@freebsd.org>, current@freebsd.org,
	Kris Kennaway <kris@obsecurity.org>
Subject: Re: vge(4) bad checksum
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At Mon, 18 Dec 2006 00:08:56 +0300,
Andrew Pantyukhin wrote:

> I wouldn't even notice the checksum issue if my ipsec
> connection to another host hadn't stop working. The
> host has ipsec(4) and a re(4) interface. dmesg on the
> box showed issues with AH checksums. The problem is
> whenever I run tcpdump (promiscuous or not) on re(4),
> the box (amd64 current) drops to kernel debugger with
> messages like:
> panic: mutex Giant not owned at /usr/src/sys/net/bpf.c:1399
> But that's another story.
> 
> So I guess my fast_ipsec/vge/checksum problem is either
> fast_ipsec or fast_ipsec+vge bound. Again, there was no
> problem with 20061210-current+ipsec+vge (not fast_ipsec).

Hi,

If you can get tcpdump output on both side of the connection I would
appreciate a PR being filed on this and asssigned to me (gnn) since
I'm currently in the guts of FAST_IPSEC.

Thanks,
George