2.6.17-rc3-mm1: x86_64 option "apicpmtimer" doesn't work anymore?

Hi all,

Some time arround 2.6.16, Andi added the option "apicpmtimer" (only on
x86_64) that "do APIC timer calibration using the pmtimer".

It seems that 2.6.17-rc3-mm1 fails to boot with that option. The boot
process just stalls. There is no panic nor error message (AFAICT), it
just...stalls. Unfortunately, I really need that "apicpmtimer" option
because the PIT is very broken on my laptop.

With 2.6.16 and 2.6.17-rc3, the boot also stalled with "apicpmtimer",
but pressing the power button again resumed the boot, but not anymore
with 2.6.17-rc3-mm1, it just stays stuck.

I've seen there are some issues with merging the clocksource in
2.6.17-rc3-mm1, but I'm not sure "apicpmtimer" and acpi_pm clocksource
are similar, are they?

Anyway, I applied the patch mentionned in the "clocksource" thread and
that doesn't help.

Thanks in advance,
Cheers,
Olivier.
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