netdev - Re: [Xen-devel] compound skb frag pages appearing in start

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Message-ID: <1349949924.21172.8462.camel@edumazet-glaptop>
Date:	Thu, 11 Oct 2012 12:05:24 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Sander Eikelenboom <linux@...elenboom.it>
Cc:	Ian Campbell <Ian.Campbell@...rix.com>,
	xen-devel <xen-devel@...ts.xen.org>,
	Konrad Rzeszutek Wilk <konrad@...nel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Eric Dumazet <edumazet@...gle.com>
Subject: Re: [Xen-devel] compound skb frag pages appearing in start_xmit

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


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