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Date: Mon, 16 Jul 2007 15:29:58 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Olaf Kirch <olaf.kirch@oracle.com>
Cc: David Miller <davem@davemloft.net>, torvalds@linux-foundation.org,
       linux-kernel@vger.kernel.org
Subject: Re: [patch] revert: [NET]: Fix races in net_rx_action vs netpoll
Message-ID: <20070716132958.GA8635@elte.hu>
References: <20070716091236.GA10718@elte.hu> <20070716.042640.18306462.davem@davemloft.net> <200707161418.42852.olaf.kirch@oracle.com>
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* Olaf Kirch <olaf.kirch@oracle.com> wrote:

> On Monday 16 July 2007 13:26, David Miller wrote:
> > Well, let's figure out why before we revert because it
> > is attempting to fix a legitimate bug.
> > 
> > Olaf, any ideas?
> 
> It seems as if the card is stuck in NAPI mode without being serviced 
> by net_rx_action.
> 
> Ingo, is this a UP or SMP machine? Are you still getting output from 
> netconsole, or is the network down completely?

there is some netconsole output but that too gets stuck after the tx 
timeout message. The e1000 options are:

CONFIG_E1000=y
CONFIG_E1000_NAPI=y
# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set

	Ingo