From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: [Xen-devel] compound skb frag pages appearing in start_xmit
Date: Thu, 11 Oct 2012 12:05:24 +0200
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Cc: Ian Campbell <Ian.Campbell@citrix.com>,
	xen-devel <xen-devel@lists.xen.org>,
	Konrad Rzeszutek Wilk <konrad@kernel.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	Eric Dumazet <edumazet@google.com>
To: Sander Eikelenboom <linux@eikelenboom.it>
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On Thu, 2012-10-11 at 12:00 +0200, Sander Eikelenboom wrote:

> Probably due to the BUG_ON from the patch below, i changed it into a WARN_ON.
> And i seem to hit it, but only in one of the guests at the moment and it triggers quite irregularly.

xennet_make_frags() is able to split the skb->head in multiple page-size
chunks.

It should do the same for fragments