From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <shemminger@vyatta.com>
Subject: Re: BUG in skb_pull with e1000e, PPTP, and L2TP
Date: Mon, 17 Oct 2011 15:25:31 -0700
Message-ID: <20111017152531.144b16a1@nehalam.linuxnetplumber.net>
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Cc: netdev@vger.kernel.org, Jeff Kirsher <jeffrey.t.kirsher@intel.com>,
	Jesse Brandeburg <jesse.brandeburg@intel.com>,
	Bruce Allan <bruce.w.allan@intel.com>,
	Carolyn Wyborny <carolyn.wyborny@intel.com>,
	Don Skidmore <donald.c.skidmore@intel.com>,
	Greg Rose <gregory.v.rose@intel.com>,
	PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>,
	Alex Duyck <alexander.h.duyck@intel.com>,
	John Ronciak <john.ronciak@intel.com>,
	e1000-devel@lists.sourceforge.net
To: Bradley Peterson <despite@gmail.com>
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On Mon, 17 Oct 2011 17:19:53 -0500
Bradley Peterson <despite@gmail.com> wrote:

>  using 3rd
> party pptp and l2tp modules.=A0

More than likely your 3rd party modules are buggy and
can't handle all the possible types of skb layout.=20
I have seen out of tree code that can't handle non-linear
skb's. You need to take it up with the those developer.