Message-ID: <45CBE30D.5030006@nvidia.com>
Date:	Thu, 08 Feb 2007 21:57:17 -0500
From:	Ayaz Abdulla <aabdulla@...dia.com>
To:	David Ford <firefighterblu3@...il.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Robert Hancock <hancockr@...w.ca>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	netdev@...r.kernel.org
Subject: Re: forcedeth problems on 2.6.20-rc6-mm3

David Ford wrote:
> On 2/5/07, *Andrew Morton* <akpm@...ux-foundation.org 
> <mailto:akpm@...ux-foundation.org>> wrote:
> 
>     On Sun, 04 Feb 2007 23:48:33 -0600 Robert Hancock <hancockr@...w.ca
>     <mailto:hancockr@...w.ca>> wrote:
> 
>      > Andrew Morton wrote:
>      > > On Sun, 04 Feb 2007 23:13:09 -0600 Robert Hancock <
>     hancockr@...w.ca <mailto:hancockr@...w.ca>> wrote:
>      > >
>      > >> Something's busted with forcedeth in 2.6.20-rc6-mm3 for me
>     relative to
>      > >> 2.6.20-rc6. There's no errors in dmesg, but it seems no
>     packets ever get
>      > >> received and so the machine can't get an IP address. I tried
>     reverting
>      > >> all the -mm changes to drivers/net/forcedeth.c, which didn't
>     help. The
>      > >> network controller shares an IRQ with the USB OHCI controller
>     which is
>      > >> receiving interrupts, so it doesn't seem like an interrupt routing
>      > >> problem, though I suppose something wierd could be happening
>     there.
>      > >>
>      > >> This is on an Asus A8N-SLI Deluxe (CK804 chipset) on x86_64.
>      > >>
>      > >> Any suggestions on how to debug/what to try reverting to see
>     what's
>      > >> causing this?
>      > >
>      > > There are many forcedeth changes in git-netdev-all.patch.  Can you
>      > > try reverting drivers/net/forcedeth.c back to the unpatched version
>      > > from 2.6.20-rc6?
>      > >
>      > > Thanks.
>      > >
>      >
>      > That's essentially what I did, it didn't appear to help. I assume
>     the
>      > problem must lie elsewhere..
>      >
> 
>     doh, I missed that.
> 
>     It's presumably not the driver and nobody else seems to be hitting
>     this, so
>     it must be something peculiar to your setup.  But I don't know what it
>     might be, sorry.
> 
> 
> 
> Actually it has been reported by several other people here including 
> myself but it seems to have been overlooked here ;)
> 
> See the messages with forcedeth in the subject line over the past few 
> weeks.
> 
> I put 2.6.20-gentoo on my machine this weekend with debug printks 
> enabled and right now I have yet to lose connectivity -- going on ~20 
> hours worth.
> 
> Previously I would lose connectivity within minutes of booting up.  I 
> had a script set up that detected the ping loss of a gateway and would 
> restart both interfaces (dual onboard nics).
> 
> Tonight I will disable the debug printks and see if the system remains 
> online.  There was a big patch applied to forcedeth for 2.6.20, 
> previously I was having these issues for several of the -19 series.
> 
> David

For all those who are having issues, please try out the attached patch.

Ayaz


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View attachment "forcedeth_napi_fix" of type "text/plain" (751 bytes)

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