netdev - Re: [PATCH] e1000: Don't enable polling in open() (was: e1000: assertion hit in e1000

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Message-ID: <20070521221635.GA16888@redhat.com>
Date:	Mon, 21 May 2007 18:16:35 -0400
From:	Dave Jones <davej@...hat.com>
To:	Auke Kok <auke-jan.h.kok@...el.com>
Cc:	jeff@...zik.org, stable@...r.kernel.org, greg@...e.de,
	e1000-devel@...ts.sourceforge.net, netdev@...r.kernel.org,
	herbert@...dor.apana.org.au
Subject: Re: [PATCH] e1000: Don't enable polling in open() (was: e1000: assertion hit in e1000_clean(), kernel 2.6.21.1)

On Mon, May 21, 2007 at 02:51:35PM -0700, Auke Kok wrote:
 > Herbert Xu wrote:
 > "netif_poll_enable can only be called if you've previously called
 > netif_poll_disable.  Otherwise a poll might already be in action
 > and you may get a crash like this."
 > 
 > Removing the call to netif_poll_enable in e1000_open should fix this issue,
 > the only other call to netif_poll_enable is in e1000_up() which is only
 > reached after a device reset or resume.
 > 
 > Bugzilla: http://bugzilla.kernel.org/show_bug.cgi?id=8455
 > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=240339

This probably doesn't solve the latter bug.
The code you reference isn't there in the kernel tested in that bug
(2.6.21)   In 2.6.21, netif_poll_enable is only called from
e1000_up(), not e1000_open()

	Dave

-- 
http://www.codemonkey.org.uk
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