netdev - Re: Oops with ipsec vpn on latest 2.6.38-rc2+ kernel

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Message-ID: <AANLkTiknwEmgg+32=VNu8+bRbUP6aC8at6eJtLeUSRFg@mail.gmail.com>
Date:	Mon, 31 Jan 2011 00:42:36 -0800
From:	Roland Dreier <roland@...nel.org>
To:	netdev@...r.kernel.org
Subject: Re: Oops with ipsec vpn on latest 2.6.38-rc2+ kernel

> With an up-to-date kernel (head is 1f0324caefd3), I'm seeing the following oops
> when I try to send traffic (I think it's my first name server query)
> through an ipsec VPN (set up with the shrew client

So I bisected this down to d33e455337ea ("net: Abstract default MTU metric
calculation behind an accessor.") and indeed I verified that the call to
dst_mtu() in ip_append_data() is calling a NULL dst->ops->default_mtu

Haven't debugged which dst this is or why it's missing that method yet...

 - R.
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