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From: Jung-uk Kim <jkim@FreeBSD.org>
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Date: Fri, 12 Dec 2008 16:39:04 -0500
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Cc: cpghost <cpghost@cordula.ws>
Subject: Re: 7.1-PRERELEASE: asus M3A / Phenom X4 / powerd freeze
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On Friday 12 December 2008 04:26 pm, Jung-uk Kim wrote:
> On Friday 12 December 2008 03:36 pm, Arno J. Klaassen wrote:
> > cpghost <cpghost@cordula.ws> writes:
> > > 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
> > >,M TRR, 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. :(
> >
> > do Phenoms not support powernow?
>
> [SNIP]
>
> "Phenom" is 10H family processor and it has Cool`n'Quiet 2.0. 
> Someone wrote a driver for it and it was posted on freebsd-current
> in September:
>
> http://lists.freebsd.org/pipermail/freebsd-current/2008-September/0
>88330.html
> http://lists.freebsd.org/pipermail/freebsd-current/2008-September/0
>88803.html
> http://lists.freebsd.org/pipermail/freebsd-current/2008-September/0
>88806.html

I forgot there is a PR with the latest driver:

http://www.freebsd.org/cgi/query-pr.cgi?pr=128575

Jung-uk Kim