freebsd stable - Dec 2008 - 7.1-PRERELEASE: asus M3A / Phenom X4 / powerd freeze

hello,

yet another powerd SOS : on an ASUS M3A78-EM MB with
Phenom 9750 and 8 gig memory, starting powerd freezes
the box after slowing down a bit cpu frequency.

[IMHO] usefull bit of info :

FreeBSD m34.scito.local 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE #0: Thu Dec 11
14:24:39 CET 2008     root@m34.scito.local:/usr/obj/raid1/bsd/src7/sys/M3A78-EM 
amd64


CPU: AMD Phenom(tm) 9750 Quad-Core Processor (2410.66-MHz K8-class CPU)
  Origin = "AuthenticAMD"  Id = 0x100f23  Stepping = 3
 
Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
  Features2=0x802009<SSE3,MON,CX16,<b23>>
  AMD
Features=0xee500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM,3DNow!+,3DNow!>
  AMD
Features2=0x7ff<LAHF,CMP,SVM,ExtAPIC,CR8,<b5>,<b6>,<b7>,Prefetch,<b9>,<b10>>
  Cores per package: 4
usable memory = 8547172352 (8151 MB)
avail memory  = 8268722176 (7885 MB)
ACPI APIC Table: <102408 APIC2239>
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
 cpu2 (AP): APIC ID:  2
 cpu3 (AP): APIC ID:  3
ioapic0 <Version 2.1> irqs 0-23 on motherboard
kbd1 at kbdmux0
acpi0: <102408 XSDT2239> on motherboard

...

cpu0: <ACPI CPU> on acpi0
acpi_throttle0: <ACPI CPU Throttling> on cpu0
cpu1: <ACPI CPU> on acpi0
cpu2: <ACPI CPU> on acpi0
cpu3: <ACPI CPU> on acpi0
acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on
acpi0
Timecounter "HPET" frequency 14318180 Hz quality 900

dev.cpu.0.freq_levels: 2398/-1 2098/-1 1798/-1 1498/-1 1199/-1 899/-1 599/-1
299/-1


further :

 - I set debug.cpufreq.lowest superior to 1500 : system remains
   up but only when pushing really slightly

 -  I set debug.cpufreq.lowest inferior to 1100 : freeze
    garantueed

 - I define hint.acpi_throttle.0.disabled="1" in loader.conf
   then no dev.cpu.0.freq is showing up ... (as if
   only acpi_throttle is attaching and not powernow)

Let me know what I can test further.

Best, Arno

On Fri, Dec 12, 2008 at 12:01:29AM +0100, Arno J. Klaassen
wrote:
> yet another powerd SOS : on an ASUS M3A78-EM MB with
> Phenom 9750 and 8 gig memory, starting powerd freezes
> the box after slowing down a bit cpu frequency.
(... snip ...)
> dev.cpu.0.freq_levels: 2398/-1 2098/-1 1798/-1 1498/-1 1199/-1 899/-1
599/-1 299/-1
> 
> further :
> 
>  - I set debug.cpufreq.lowest superior to 1500 : system remains
>    up but only when pushing really slightly
> 
>  -  I set debug.cpufreq.lowest inferior to 1100 : freeze
>     garantueed
Same here. Running with
  debug.cpufreq.lowest="1240"
in /boot/loader.conf to prevent freezes.

This is a FreeBSD 7.1-PRERELEASE #0: Sat Nov  8 14:18:05 CET 2008
  root@textbox:/usr/obj/usr/src/sys/GENERIC
running in amd64 and i386 mode with ACPI enabled (default):

CPU: AMD Phenom(tm) 9350e Quad-Core Processor (2000.08-MHz K8-class CPU)
  Origin = "AuthenticAMD"  Id = 0x100f23  Stepping = 3
  Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,
                      PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
  Features2=0x802009<SSE3,MON,CX16,<b23>>
  AMD Features=0xee500800<SYSCALL,NX,MMX+,FFXSR,Page1GB,RDTSCP,LM,
                          3DNow!+,3DNow!>
  AMD
Features2=0x7ff<LAHF,CMP,SVM,ExtAPIC,CR8,<b5>,<b6>,<b7>,
                      Prefetch,<b9>,<b10>>
  Cores per package: 4

using an MSI board with SB600 chipset and newest BIOS.

No idea why the system freezes below approx 1200 MHz. But apparently,
this bug is quite common and affects a lot of systems with Phenoms. :(
>  - I define hint.acpi_throttle.0.disabled="1" in loader.conf
>    then no dev.cpu.0.freq is showing up ... (as if
>    only acpi_throttle is attaching and not powernow)
> 
> Let me know what I can test further.
> 
> Best, Arno
Regards,
-cpghost.

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