Re: 2.6.24-rc8 hangs at mfgpt-timer

On Thu, 17 Jan 2008 10:54:30 +0100
Arnd Hannemann <hannemann@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

Andres Salomon schrieb:
On Wed, 16 Jan 2008 16:19:12 -0500
Andres Salomon <dilinger@xxxxxxxxxx> wrote:

On Wed, 16 Jan 2008 18:44:07 +0100
Arnd Hannemann <hannemann@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> 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).


v0.99 of what? Jordan seems to think it's an Award BIOS, but I'd like
to make sure.


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


"MFGPT workaround"? That sounds a bit frightening.

Presumably, the BIOS is using the MFGPTs, but we're not detecting them as
being in use.

I'm assuming that booting with 'nomfgpt' works for you?





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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