linux-kernel - x86_64: HPET is detected but not working on ASUS F3T notebook

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Date:	Sun, 5 Aug 2007 02:24:28 +0400
From:	Mikhail Kshevetskiy <mikhail.kshevetskiy@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: x86_64: HPET is detected but not working on ASUS F3T notebook

HPET is not working on my notebook with 64-bit kernel. HPET is detected
by kernel

  # dmesg | grep -i hpet
  ACPI: HPET 3FFA9760, 0038 (r1 A M I  OEMHPET0  4000724 MSFT 97)
  ACPI: HPET id: 0x10de8201 base: 0xfed00000
  hpet0: at MMIO 0xfed00000, IRQs 2, 8, 31
  hpet0: 3 32-bit timers, 25000000 Hz
  Time: hpet clocksource has been installed.
  hpet_resources: 0xfed00000 is busy

but not listed in /proc/timer_list. When i use HRT (tickless) kernel
patches the system stall at boot until i press and hold any key.
I test every HRT kernel starting from linux-2.6.22-rc3-hrt1
with the same result.

PS: i386 kernel with similar configuration works with HPET without any
trouble.

Sincerely yours,
Mikhail Kshevetskiy
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