netdev - Re: 2.6.30-rc1: e1000: list

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Message-ID: <20090409071242.GA5515@ff.dom.local>
Date:	Thu, 9 Apr 2009 07:12:42 +0000
From:	Jarek Poplawski <jarkao2@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	a.beregalov@...il.com, kernel-testers@...r.kernel.org,
	netdev@...r.kernel.org, e1000-devel@...ts.sourceforge.net
Subject: Re: 2.6.30-rc1: e1000: list_add corruption

On 09-04-2009 06:20, David Miller wrote:
> From: Alexander Beregalov <a.beregalov@...il.com>
> Date: Thu, 9 Apr 2009 08:16:00 +0400
> 
>> The host has two interfaces
>> eth0 - e1000, eth1 - forcedeth.
>> Both are not working after that messages.
> 
> It looks like the NAPI pending list is being modified in an illegal
> state by forcedeth, and mid-stream to a list_del() an e1000 interrupt
> comes in and this tries to schedule the e1000 NAPI context and we get
> list corruption.

Good point! Feel free to send a patch. ;-)

Jarek P.
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