linux-kernel - Re: [PATCH 1/7] [NETDEV]: e1000 Fix possible causing oops of net_rx

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Date:	Thu, 13 Dec 2007 05:33:54 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	joonwpark81@...il.com
Cc:	auke-jan.h.kok@...el.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, jesse.brandeburg@...el.com,
	jgarzik@...ox.com, shemminger@...ux-foundation.org
Subject: Re: [PATCH 1/7] [NETDEV]: e1000 Fix possible causing oops of
 net_rx_action

From: "Joonwoo Park" <joonwpark81@...il.com>
Date: Thu, 13 Dec 2007 19:18:56 +0900

> Just blowing netif_running up is not best solution I think, it makes
> ifconfig down hang at least for e1000.

It hangs because the packet receive rate is so high that NAPI
poll never exits.

I think we need a cheap solution to something so obscure and
almost not worth explicitly even coding for.  Really, if you
setup silly situations like that, you get what you asked for.
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