FWIW, I'm not seeing the same thing with ICH6 or ICH2 using  
GENERIC.MPACPI from this afternoon.

timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
...
ioapic0: enabling
timecounter: Timecounter "TSC" frequency 3591134550 Hz quality 800
...
timecounter: Timecounters tick every 10.000 msec
timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
timecounter: selected timecounter "TSC" frequency 3591134550 Hz  
quality 800
...
auich0 at pci0 dev 30 function 2: i82801FB (ICH6) AC-97 Audio
auich0: interrupting at ioapic0 pin 23 (irq 10)
auich0: ac97: Analog Devices AD1981B codec; headphone, 20 bit DAC, no  
3D stereo
auich0: ac97: ext id 601<AC97_22,AMAP,VRA>
...
auich0: measured ac97 link rate at 48001 Hz, will use 48000 Hz
audio0 at auich0: full duplex, mmap, independent

I can't actually test audio playback since I'm remote ATM.


ICH2 has lost interrupt problems with the IDE controllers, but I  
don't think that's related to time counters. Audio plays back fine  
using auich and emuxki

auich0 at pci0 dev 31 function 5: i82801BA (ICH2) AC-97 Audio
auich0: interrupting at ioapic0 pin 17 (irq 5)
auich0: ac97: Avance Logic ALC200/ALC201 codec; headphone, 18 bit  
DAC, 18 bit ADC, Realtek 3D
auich0: ac97: ext id 201<AMAP,VRA>
...
auich0: measured ac97 link rate at 47996 Hz, will use 48000 Hz
audio1 at auich0: full duplex, mmap, independent


On Jun 9, 2006, at 9:22 PM, Geoff Wing wrote:

> On Saturday 2006-06-10 11:03 +1000, Frank Kardel output:
> :Vincent wrote:
> :> Normally, it should be around 47 to 48 kHz, as it was before.
> :I re-ordered the initialization sequence for timecounters. Now
> :real counters should be available during autoconfig. Check
> :whether this fixes the auich problem.
>
> Not for me.  It did approximately double it though.
> Normally measures on this machine at 48002.
>
> Diff pre/post re-order gives:
>
> --- f-dmesg.20060609  2006-06-09 14:58:10.000000000 +1000
> +++ d   2006-06-10 11:11:32.000000000 +1000
> @@ -1,8 +1,10 @@
> -NetBSD 3.99.21 (F) #0: Fri Jun  9 14:44:00 EST 2006
> +NetBSD 3.99.21 (F) #0: Sat Jun 10 11:08:28 EST 2006
>         gcw@g.primenet.com.au:/usr/netbsd/src/sys/arch/i386/compile/F
>  total memory = 1022 MB
>  avail memory = 1002 MB
> +timecounter: Timecounters tick every 10.000 msec
>  timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
> +timecounter: selected timecounter "i8254" frequency 1193182 Hz  
> quality 100
>  BIOS32 rev. 0 found at 0xf0010
>  PCI BIOS rev. 2.1 found at 0xf0031
>  pcibios: config mechanism [1][x], special cycles [x][x], last bus 2
> @@ -114,11 +116,10 @@
>  auich0: ac97: Analog Devices AD1985 codec; headphone, 20 bit DAC,  
> no 3D stereo
>  auich0: ac97: ext id 3c7<AMAP,LDAC,SDAC,CDAC,SPDIF,DRA,VRA>
>  isa0 at pcib0
> -timecounter: Timecounter "TSC" frequency 2606023600 Hz quality 800
> -timecounter: Timecounters tick every 10.000 msec
> +timecounter: Timecounter "TSC" frequency 2606028760 Hz quality 800
> +timecounter: selected timecounter "TSC" frequency 2606028760 Hz  
> quality 800
>  timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
> -timecounter: selected timecounter "TSC" frequency 2606023600 Hz  
> quality 800
> -auich0: measured ac97 link rate at 13146 Hz, will use 48000 Hz
> +auich0: measured ac97 link rate at 26897 Hz, will use 48000 Hz
>  audio0 at auich0: full duplex, mmap, independent
>  wd0 at atabus0 drive 0: <ST3120026A>
>  wd0: drive supports 16-sector PIO transfers, LBA48 addressing
>
>
> Full dmesg as 2006-04-19
>
> NetBSD 3.99.18 (F) #0: Wed Apr 19 14:31:03 EST 2006
> 	gcw@g.primenet.com.au:/usr/netbsd/src/sys/arch/i386/compile/F
> total memory = 1022 MB
> avail memory = 1001 MB
> BIOS32 rev. 0 found at 0xf0010
> PCI BIOS rev. 2.1 found at 0xf0031
> pcibios: config mechanism [1][x], special cycles [x][x], last bus 2
> PCI IRQ Routing Table rev. 1.0 found at 0xf50c0, size 256 bytes (14  
> entries)
> PCI Interrupt Router at 000:31:0 (Intel 82801EB LPC Interface  
> Bridge compatible)
> mainbus0 (root)
> cpu0 at mainbus0: (uniprocessor)
> cpu0: Intel Pentium 4 (686-class), 2606.00 MHz, id 0xf29
> cpu0: features  
> bfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
> cpu0: features bfebfbff<PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX>
> cpu0: features bfebfbff<FXSR,SSE,SSE2,SS,HTT,TM,SBF>
> cpu0: features2 4400<CID,xTPR>
> cpu0: "Intel(R) Pentium(R) 4 CPU 2.60GHz"
> cpu0: I-cache 12K uOp cache 8-way, D-cache 8 KB 64B/line 4-way
> cpu0: L2 cache 512 KB 64B/line 8-way
> cpu0: ITLB 4K/4M: 64 entries
> cpu0: DTLB 4K/4M: 64 entries
> cpu0: using thermal monitor 1
> cpu0: 16 page colors
> acpi0 at mainbus0: Advanced Configuration and Power Interface
> acpi0: using Intel ACPI CA subsystem version 20060217
> acpi0: X/RSDT: OemId <A M I ,OEMRSDT ,06000423>, AslId <MSFT,00000097>
> acpi0: SCI interrupting at int 9
> acpi0: fixed-feature power button present
> ACPI Object Type 'Processor' (0x0c) at acpi0 not configured
> ACPI Object Type 'Processor' (0x0c) at acpi0 not configured
> PNP0A03 [PCI/PCI-X Host Bridge] at acpi0 not configured
> PNP0000 [AT Interrupt Controller] at acpi0 not configured
> PNP0200 [AT DMA Controller] at acpi0 not configured
> attimer0 at acpi0 (PNP0100): AT Timer
> attimer0: io 0x40-0x43 irq 0
> PNP0B00 [AT Real-Time Clock] at acpi0 not configured
> pckbc0 at acpi0 (PNP0F03): aux port
> pckbc0: io 0x60,0x64 irq 12
> pcppi0 at acpi0 (PNP0800)
> pcppi0: io 0x61
> midi0 at pcppi0: PC speaker
> spkr0 at pcppi0
> sysbeep0 at pcppi0
> npx0 at acpi0 (PNP0C04)
> npx0: io 0xf0-0xff irq 13
> npx0: using exception 16
> com0 at acpi0 (PNP0501-1)
> com0: io 0x3f8-0x3ff irq 4
> com0: ns16550a, working fifo
> com1 at acpi0 (PNP0501-2)
> com1: io 0x2f8-0x2ff irq 3
> com1: ns16550a, working fifo
> lpt0 at acpi0 (PNP0401-1)
> lpt0: io 0x378-0x37f,0x778-0x77b irq 7 drq 3
> PNP0C02 [Plug and Play motherboard register resources] at acpi0 not  
> configured
> PNP0C02 [Plug and Play motherboard register resources] at acpi0 not  
> configured
> PNP0C02 [Plug and Play motherboard register resources] at acpi0 not  
> configured
> PNP0C01 [System Board] at acpi0 not configured
> acpibut0 at acpi0 (PNP0C0C-170): ACPI Power Button
> PNP0C0F [PCI interrupt link device] at acpi0 not configured
> PNP0C0F [PCI interrupt link device] at acpi0 not configured
> PNP0C0F [PCI interrupt link device] at acpi0 not configured
> PNP0C0F [PCI interrupt link device] at acpi0 not configured
> PNP0C0F [PCI interrupt link device] at acpi0 not configured
> PNP0C0F [PCI interrupt link device] at acpi0 not configured
> PNP0C0F [PCI interrupt link device] at acpi0 not configured
> pcppi0: attached to attimer0
> pci0 at mainbus0 bus 0: configuration mode 1
> pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
> pchb0 at pci0 dev 0 function 0
> pchb0: Intel 82865 Host (rev. 0x02)
> agp0 at pchb0: aperture at 0xf8000000, size 0x4000000
> ppb0 at pci0 dev 1 function 0: Intel 82865 AGP (rev. 0x02)
> pci1 at ppb0 bus 1
> pci1: i/o space, memory space enabled
> vga0 at pci1 dev 0 function 0: NVIDIA GeForce2 GTS (rev. 0xa4)
> wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation)
> wsmux1: connecting to wsdisplay0
> Intel 82801EB/ER USB UHCI Controller (USB serial bus, revision  
> 0x02) at pci0 dev 29 function 0 not configured
> Intel 82801EB/ER USB UHCI Controller (USB serial bus, revision  
> 0x02) at pci0 dev 29 function 1 not configured
> Intel 82801EB/ER USB UHCI Controller (USB serial bus, revision  
> 0x02) at pci0 dev 29 function 2 not configured
> Intel 82801EB/ER USB UHCI Controller (USB serial bus, revision  
> 0x02) at pci0 dev 29 function 3 not configured
> Intel 82801EB/ER USB EHCI Controller (USB serial bus, interface  
> 0x20, revision 0x02) at pci0 dev 29 function 7 not configured
> ppb1 at pci0 dev 30 function 0: Intel 82801BA Hub-PCI Bridge (rev.  
> 0xc2)
> pci2 at ppb1 bus 2
> pci2: i/o space, memory space enabled
> VIA Technologies VT6306 IEEE 1394 Host Controller (Firewire serial  
> bus, interface 0x10, revision 0x80) at pci2 dev 3 function 0 not  
> configured
> skc0 at pci2 dev 5 function 0: irq 5
> skc0: interrupt moderation is 0 us
> skc0: 3Com Gigabit LOM (3C940) rev. (0x1)
> sk0 at skc0 port A: Ethernet address 00:0c:6e:d7:a6:d2
> makphy0 at sk0 phy 0: Marvell 88E1011 Gigabit PHY, rev. 3
> makphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT,  
> 1000baseT-FDX, auto
> ex0 at pci2 dev 12 function 0: 3Com 3c905B-TX 10/100 Ethernet (rev.  
> 0x30)
> ex0: interrupting at irq 11
> ex0: MAC address 00:10:5a:6b:e4:fc
> exphy0 at ex0 phy 24: 3Com internal media interface
> exphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
> pcib0 at pci0 dev 31 function 0
> pcib0: Intel 82801EB LPC Interface Bridge (rev. 0x02)
> piixide0 at pci0 dev 31 function 1
> piixide0: Intel 82801EB IDE Controller (ICH5) (rev. 0x02)
> piixide0: bus-master DMA support present
> piixide0: primary channel configured to compatibility mode
> piixide0: primary channel interrupting at irq 14
> atabus0 at piixide0 channel 0
> piixide0: secondary channel configured to compatibility mode
> piixide0: secondary channel interrupting at irq 15
> atabus1 at piixide0 channel 1
> Intel 82801EB/ER SMBus Controller (SMBus serial bus, revision 0x02)  
> at pci0 dev 31 function 3 not configured
> auich0 at pci0 dev 31 function 5: i82801EB (ICH5) AC-97 Audio
> auich0: interrupting at irq 11
> auich0: ac97: Analog Devices AD1985 codec; headphone, 20 bit DAC,  
> no 3D stereo
> auich0: ac97: ext id 3c7<AMAP,LDAC,SDAC,CDAC,SPDIF,DRA,VRA>
> isa0 at pcib0
> auich0: measured ac97 link rate at 48002 Hz, will use 48000 Hz
> audio0 at auich0: full duplex, mmap, independent
> wd0 at atabus0 drive 0: <ST3120026A>
> wd0: drive supports 16-sector PIO transfers, LBA48 addressing
> wd0: 111 GB, 232581 cyl, 16 head, 63 sec, 512 bytes/sect x  
> 234441648 sectors
> wd0: 32-bit data port
> wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/ 
> 100)
> wd0(piixide0:0:0): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100)  
> (using DMA)
> boot device: wd0
> root on wd0a dumps on wd0b
> sk0: link state changed to DOWN
> skc0: interrupt moderation is 100 us
> ex0: link state changed to DOWN
> wsdisplay0: screen 1 added (80x25, vt100 emulation)
> wsdisplay0: screen 2 added (80x25, vt100 emulation)
> wsdisplay0: screen 3 added (80x25, vt100 emulation)
> wsdisplay0: screen 4 added (80x25, vt100 emulation)
> ex0: link state changed to UP
> Accounting started
>
> !DSPAM:448a1ef7232772107119486!
>
>
>