From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH 1/7] : e1000 Fix possible causing oops of net_rx_action Date: Thu, 13 Dec 2007 05:33:54 -0800 (PST) Message-ID: <20071213.053354.82143565.davem@davemloft.net> References: <000701c83d71$95536b10$9c94fea9@jason> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: auke-jan.h.kok@intel.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, jesse.brandeburg@intel.com, jgarzik@pobox.com, shemminger@linux-foundation.org To: joonwpark81@gmail.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:56358 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1753771AbXLMNdy (ORCPT ); Thu, 13 Dec 2007 08:33:54 -0500 In-Reply-To: <000701c83d71$95536b10$9c94fea9@jason> Sender: netdev-owner@vger.kernel.org List-ID: From: "Joonwoo Park" 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.