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Date:	Mon, 21 May 2007 21:22:27 -0400
From:	Dave Jones <>
To:	"Kok, Auke" <>
Cc:	Herbert Xu <>,,,,,
Subject: Re: [PATCH] e1000: Don't enable polling in open() (was: e1000: assertion hit in e1000_clean(), kernel

On Mon, May 21, 2007 at 05:58:27PM -0700, Kok, Auke wrote:
 > >> 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()
 > > 
 > > Yes we need a different fix for 2.6.21.  There e1000_open calls
 > > e1000_up which is why we still get the netif_poll_enable.
 > yes, basically they need the patch that introduced(exposed) the problem as well, 
 > but that is a rather significant change and kind of moves the whole 
 > netstack-init code in e1000 around. The size was the reason why that patch 
 > didn't go into 2.6.21 in the first place, but perhaps they can pull both patches 
 > into the FC tree.
 > For reference, this is the commit:
 > commit e0aac5a289b1dacbc94bd9ae8c449bcdf9ab508c
 > Author: Auke Kok <>
 > Date:   Tue Mar 6 08:57:21 2007 -0800
 >      e1000: FIX: be ready for incoming irq at pci_request_irq
 >      DEBUG_SHIRQ code exposed that e1000 was not ready for incoming interrupts
 >      after having called pci_request_irq. This obviously requires us to finish
 >      our software setup which assigns the irq handler before we request the
 >      irq.
 >      Signed-off-by: Auke Kok <>
 >      Signed-off-by: Jeff Garzik <>
 > Dave, would that be an option for you?

Sounds like a plan.  I'll do a test-build with this and the other
patch, and throw it at the people seeing the problem tomorrow.



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