ACPI regression on recent 7.0-STABLE: HPET stops working

[Oleg V. Nauman]

Quoting Jeremy Chadwick <koitsu at FreeBSD.org>:

> On Sat, Jul 19, 2008 at 10:03:15AM +0300, Oleg V. Nauman wrote:
>>  It seems to be something was changed with ACPI support on 7.0-STABLE so
>> my next system upgrade ended with ACPI HPET not working anymore on my
>> ASUS A9Rp laptop.
>>
>> Here is the part of /var/log/dmesg.today dated July 13:
>>
>> FreeBSD 7.0-STABLE #65: Tue Jul  8 22:05:07 EEST 2008
>>     root at rainhaven.theweb.org.ua:/usr/src/sys/i386/compile/oleg2
>> [..]
>> acpi0: <A M I OEMRSDT> on motherboard
>> acpi0: Overriding SCI Interrupt from IRQ 9 to IRQ 21
>> acpi0: [ITHREAD]
>> acpi0: Power Button (fixed)
>> acpi0: reservation of 0, a0000 (3) failed
>> acpi0: reservation of 100000, 77f00000 (3) failed
>> Timecounter "ACPI-safe" frequency 3579545 Hz quality 850
>> acpi_timer0: <32-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
>> acpi_ec0: <Embedded Controller: GPE 0x18> port 0x62,0x66 on acpi0
>> acpi_hpet0: <High Precision Event Timer> iomem   
>> 0xfed00000-0xfed003ff on acpi0
>> Timecounter "HPET" frequency 14318180 Hz quality 900
>>
>> Here is the fresh dmesg output info:
>>
>> FreeBSD 7.0-STABLE #66: Tue Jul 15 22:11:27 EEST 2008
>>     root at rainhaven.theweb.org.ua:/usr/src/sys/i386/compile/oleg2
>> [..]
>> acpi0: <A M I OEMRSDT> on motherboard
>> acpi0: Overriding SCI Interrupt from IRQ 9 to IRQ 21
>> acpi0: [ITHREAD]
>> acpi0: Power Button (fixed)
>> acpi0: reservation of 0, a0000 (3) failed
>> acpi0: reservation of 100000, 77f00000 (3) failed
>> Timecounter "ACPI-safe" frequency 3579545 Hz quality 850
>> acpi_timer0: <32-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
>> [..]
>> acpi_hpet0: <High Precision Event Timer> iomem   
>> 0xfed00000-0xfed003ff on acpi0
>> device_attach: acpi_hpet0 attach returned 12
>>
>> And the part of actual sysctl kern.timecounter output:
>>
>> kern.timecounter.choice: TSC(800) ACPI-safe(850) i8254(0) dummy(-1000000)
>> kern.timecounter.hardware: ACPI-safe
>
> Seems okay here:
>
> FreeBSD icarus.home.lan 7.0-STABLE FreeBSD 7.0-STABLE #0: Sat Jul 12  
>  10:53:08 PDT 2008   
> root at icarus.home.lan:/usr/obj/usr/src/sys/PDSMI_PLUS_amd64  amd64
>
> acpi_timer0: <24-bit timer at 3.579545MHz> port 0x1008-0x100b on acpi0
> acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
> Timecounter "i8254" frequency 1193182 Hz quality 0
> Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
> Timecounter "HPET" frequency 14318180 Hz quality 900
> Timecounters tick every 1.000 msec
>
> kern.timecounter.choice: TSC(-100) HPET(900) ACPI-fast(1000)   
> i8254(0) dummy(-1000000)
> kern.timecounter.hardware: ACPI-fast
>
> You sure you haven't upgraded your BIOS or something and forgot to
> re-enable HPET?

  No it was not upgraded.. Have no option to enable/disable HPET  
through BIOS settings though