netdev - Re: 2.6.30-rc1: e1000: list

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Message-Id: <20090408.212040.184687004.davem@davemloft.net>
Date:	Wed, 08 Apr 2009 21:20:40 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	a.beregalov@...il.com
Cc:	kernel-testers@...r.kernel.org, netdev@...r.kernel.org,
	e1000-devel@...ts.sourceforge.net
Subject: Re: 2.6.30-rc1: e1000: list_add corruption

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.
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