ACPI regression on recent 7.0-STABLE: HPET stops working

[John Baldwin]

On Monday 21 July 2008 06:07:52 am Oleg V. Nauman wrote:
> Quoting "Oleg V. Nauman" <oleg at opentransfer.com>:
> 
> > 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
> 
>   I was unclear a bit or so. There are no ACPI related settings in my  
> laptop's BIOS.
> 
>   Well.. Backout 1.243.2.3 revision of /usr/src/sys/dev/acpica/acpi.c  
> (committed to RELENG_7 at July 10 by jhb) fixes this issue for me:
> 
> acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on 
acpi0
> Timecounter "HPET" frequency 14318180 Hz quality 900
> 
> kern.timecounter.choice: TSC(800) HPET(900) ACPI-safe(850) i8254(0)  
> dummy(-1000000)
> kern.timecounter.hardware: HPET
> 
>   Hopefully it helps to understand what is went wrong there.

Ok, so the attempt to allocate the resource is failing for some reason.  Can 
you get output from 'devinfo -r' and 'devinfo -u'?

-- 
John Baldwin