linux-kernel - Re: [PATCH] CONFIG_PACKET

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Message-Id: <200704101952.05380.rgetz@blackfin.uclinux.org>
Date:	Tue, 10 Apr 2007 19:52:04 -0400
From:	Robin Getz <rgetz@...ckfin.uclinux.org>
To:	"David Howells" <dhowells@...hat.com>, uaca@...mni.uv.es
Cc:	bryan.wu@...log.com, "Alan Cox" <alan@...rguk.ukuu.org.uk>,
	waltje@...lt.nl.mugnet.org, "Aubrey Li" <aubreylee@...il.com>,
	netdev@...r.kernel.org, "Andrew Morton" <akpm@...l.org>,
	"Linux Kernel" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] CONFIG_PACKET_MMAP should depend on MMU

On Tue 10 Apr 2007 08:55, David Howells pondered:
> Looking at alloc_pg_vec() in af_packet.c, I will place my bets on the
> latter case.  I don't know that this is a problem; it depends on how things
> work, and that I don't know offhand.  If someone can give me a simple test
> program, I would be able to evaluate it better.

Hmm - the only think I have used in the past is tcpdump/libpcap from
http://public.lanl.gov/cpw/

Documentation/networking/packet_mmap.txt also seems to be a little dated, but 
does have some code snippets if you wanted to make something lightweight...

Does anyone else on netdev have a small test app?

-Robin
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