Message-ID: <4CD2C0F0.5030201@mandriva.org>
Date: Thu, 4 Nov 2010 16:19:28 +0200
From: Thomas Backlund <tmb@mandriva.org>
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To: linux-kernel@vger.kernel.org
Subject: Re: kernel 2.6.33.7 (the highest version with RT patch) does not
 work with b44 ethernet controller
References: <4CD2BDE7.2070307@elka.pw.edu.pl>
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Wojtek Zabolotny skrev 4.11.2010 16:06:
> I have updated my RT-kernel to version 2.6.33.7-rt29 (the newest RT
> version),
> and I've found that I've lost Ethernet connectivity.
> In the logs I could see messages like this:
> Nov 2 09:30:28 wzlaphp kernel: b44: eth0: powering down PHY
> Nov 2 09:30:28 wzlaphp kernel: b44: eth0: BUG! Timeout waiting for bit
> 00000002 of register 42c to clear.
> Nov 2 09:30:32 wzlaphp kernel: b44: eth0: BUG! Timeout waiting for bit
> 80000000 of register 428 to clear.
>
> I was not sure whether the probem is related to the 2.6.33.7 kernel
> itself or with the RT patch, so I've compiled also the unpatched version
> of 2.6.33.7
>

Known problem.
It's the 2.6.33.7 kernel.

You need to revert this:
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.33.y.git;a=commit;h=6fb037c2ed8378c7ab0c1e00536ba6b2a866503e

--
Thomas
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