linux-kernel - Re: 2.6.24-rc8 hangs at mfgpt-timer

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Message-ID: <478F25D6.3060503@i4.informatik.rwth-aachen.de>
Date:	Thu, 17 Jan 2008 10:54:30 +0100
From:	Arnd Hannemann <hannemann@...informatik.rwth-aachen.de>
To:	Andres Salomon <dilinger@...ued.net>
CC:	linux-kernel@...r.kernel.org, Jordan Crouse <jordan.crouse@....com>
Subject: Re: 2.6.24-rc8 hangs at mfgpt-timer

Andres Salomon schrieb:
> On Wed, 16 Jan 2008 16:19:12 -0500
> Andres Salomon <dilinger@...ued.net> wrote:
> 
>> On Wed, 16 Jan 2008 18:44:07 +0100
>> Arnd Hannemann <hannemann@...informatik.rwth-aachen.de> wrote:
>>
>>> Hi,
>>>
>>> I'm trying to boot 2.6.24-rc8 on a GEODE LX board (ALIX.3),
>>> and it hangs during boot:
>>>
>>> [   12.689971] NET: Registered protocol family 16
>>> [   12.703329] geode-mfgpt:  Registered timer 0
>>> [   12.716149] mfgpt-timer:  registering the MFGT timer as a clock event...
>>>
>>
>> What BIOS are you using?  It's possible that our detection code is
>> failing to detect in-use timers.

I'm using v0.99 (latest available).
Also note when I do enable the mysterios "MFGPT workaround" option in
the bios the machine hangs directly after:
[   36.780990] NET: Registered protocol family 16

> 
> 
> Also, could you provide a log with the following (untested) patch?  I'm
> curious how many MFGPTs we're actually detecting as being available, and
> the existing code is backwards.

The relevant part would be:
[   23.092507] NET: Registered protocol family 16
[   23.105875] geode-mfgpt:  8 MFGPT timers available
[   23.120247] geode-mfgpt:  Registered timer 0
[   23.133076] mfgpt-timer:  registering the MFGT timer as a clock event.

Best regards,
Arnd Hannemann

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