Re: [REGRESSION] e1000e stopped working [MANUALLY BISECTED]

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On Wed, Jul 28, 2010 at 18:10, Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx> wrote:
> On Wed, Jul 28, 2010 at 00:04, Maxim Levitsky <maximlevitsky@xxxxxxxxx> wrote:
>> On Mon, 2010-07-26 at 03:25 +0300, Maxim Levitsky wrote:
>>> This commit, present in net-next, solves the problem:
>>> commit 1286950690f0f82ffa504e1e149ee3fdb4c51478
>>> Author: Bruce Allan <bruce.w.allan@xxxxxxxxx>
>>> Date:   Mon Jul 26 03:19:38 2010 +0300
>>>     e1000e: cleanup e1000_sw_lcd_config_ich8lan()
>>>     Do not acquire and release the PHY unnecessarily for parts that return
>>>     from this workaround without actually accessing the PHY registers.
>>>     Signed-off-by: Bruce Allan <bruce.w.allan@xxxxxxxxx>
>>>     Tested-by: Jeff Pieper <jeffrey.e.pieper@xxxxxxxxx>
>>>     Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx>
>>>     Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
>>> Also, the above patch is part of whole series of patches with scary descriptions (that is these fix bugs).
>>> If I were you I would send them to Linus for 2.6.35 inclusion too.
>>> Best regards,
>>>       Maxim Levitsky
>> ping
> Sorry for the delayed response.  I am working on the issue.  Here is
> the problem I am having, the patch that fixes the issue you are seeing
> is fairly large and is a cleanup to the ich8 function, which as it
> stands now, would not be accepted into net-2.6 tree this late into the
> -rc cycle.  So, what I looking at is, what specifically fixed the
> issue you are seeing that resides in that patch, and come up with a
> smaller (acceptable) patch that I can submit to net-2.6 now to resolve
> your issue.
> I have dedicated most of this evening to finding a resolution to your
> issue that will be acceptable for the net-2.6 tree.  As you noted,
> there were several patches before this particular commit that may play
> some part in the resolution as well, and that is what I will be
> looking into.  I greatly appreciate the hard work you have done to
> help us resolve this issue, and will make sure you get credit for any
> solution I put together to resolve this issue.
> --
> Cheers,
> Jeff

To keep everyone informed...

We have found the root cause for this issue with the help of Maxim,
and will have a patch to fix the issue in the next couple of days.

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