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Message-ID: <60f2b0dc0605021335k6e84156ejd0945c6d416ef2d1@mail.gmail.com>
Date: Tue, 2 May 2006 22:35:43 +0200
From: "Olivier Fourdan" <fourdan@gmail.com>
To: linux-kernel <linux-kernel@vger.kernel.org>
Subject: 2.6.17-rc3-mm1: x86_64 option "apicpmtimer" doesn't work anymore?
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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.