linux-kernel - Re: [BUG:] forcedeth: MCP55 not allowing DHCP

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Message-ID: <46EF3104.8080805@ncsu.edu>
Date:	Mon, 17 Sep 2007 21:59:32 -0400
From:	Casey Dahlin <cjdahlin@...u.edu>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [BUG:] forcedeth: MCP55 not allowing DHCP

Casey Dahlin wrote:
> I have an Asus Striker Extreme motherboard with two built in MCP55 
> GigE interfaces. When I build with the original Fedora 7 release 
> kernel ( 
> ftp://ftp.belnet.be/linux/fedora/linux/releases/7/Fedora/i386/os/Fedora/kernel-2.6.21-1.3194.fc7.i686.rpm 
> ) everything works fine. However, when I boot with any updated kernels 
> or any other kernel (have tried building from several points in the 
> linus git tree between 2.6.20 and .23-rc3, and 2.6.21.2 in -stable) I 
> cannot get an IP address via dhcp. There is no error in dmesg. The 
> card shows a link and otherwise appears to be working, but it is as if 
> the dhcp server has been removed from the network.
>
> On a running system there is no indication that this is a kernel bug 
> at all, however by varying only the kernel the bug appears and 
> disappears. I've run all these tests repeatedly with no intervening 
> updates of any other packages.
>
> As I said I attempted to build 2.6.21.2 ( the point of divergence 
> between the Fedora kernel in question and -stable ) and still the card 
> did not work. I will next attempt to manually build the rpm for the 
> release kernel. If this works I will try experimenting with the 
> included patches to narrow it down, but at this point I'm at a 
> complete loss.
>
> -Casey Dahlin
>

Is there any feedback to be had on this? I've gotten no reply whatsoever 
from several sources now.
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