similar to: Powernow Failure with Xen Kernel

Hello, Using kernel: 2.6.18-92.1.13.el5.centos.plus the cpu throttling works as desired (see 2 traces below) ------------- trace snips -------------- dmesg | grep -i pow ACPI: SSDT (v001 PTLTD POWERNOW 0x00000001 LTP 0x00000001) @ 0x3fff9b40 powernow-k8: Found 1 AMD Athlon(tm) 64 X2 Dual Core Processor 4600+ processors ( 2 cpu cores) (version 2.20.00) powernow-k8: 0 :

Package: xen-hypervisor-4.1-amd64 Version: 4.1.3-3 Severity: normal Forwarded: http://bugzilla.xen.org/bugzilla/show_bug.cgi?id=1789 Dear Debian Xen Team, after an upgrade from Squeeze to Wheezy I see about ten of these per second filling my system log (about 8 MB/h): Nov 23 00:15:37 acromantula kernel: [ 462.544193] powernow-k8: fid trans failed, fid 0x2, curr 0x0 Nov 23 00:15:37 acromantula

Hi, I have a v2000 compaq laptop. The realtek network and USB on this machine was not working. After adding to grub.conf "acpi=off apci=off noacpi noapic" the v2000 realtek started working and the USB worked fine... Fantastic! So I thought I would try those same options on my r4000 laptop. they had no effect.... This AMD turion 64 4000+ rating laptop is still running SLOWWW...

With the third generation Opteron parts, AMD switched to an architecturally defined interface for PowerNow! that uses different MSRs than previous versions. This patch brings the PowerNow! driver up to match the mainline Linux driver and provide support for all AMD parts that use or will use the architectural pstate interface. It also removes a WARN_ON statement in kernel/cpu.c that highlights a

I had my eye on the Tyan dual-Opteron mobos for awhile. I tried to find a posting *anywhere* sharing experiences with these boards under Linux. No such luck. So placing myself under the heading "Where Angles Fear to Tread," I went ahead and built a system anyway. Here's what I've learned. The specs: Tyan Thunder K8SE S2892, BIOS 1.01 2x Opteron 270, 2Ghz Dual-Core, retail

Hi! I would like to know the status of the frequency scaling in XEN. I found a web site saying that XEN doesn’t work with frequency scaling, at the other hand I found some fixes for powernow-k8 to get rid of some messages. I have an AMD64. powerno-k8 works find with non-XEN kernels, but with XEN-kernels I get the error: powernow-k8: Found 1 AMD Athlon(tm) 64 Processor 3400+ processors

Could anyone summarize what the support status of cpu frequency changes is at present. I don''t seem to recall generic changes to the hpyervisor in that respect, but the linux tree has fairly extensive changes to the powernow-k8 driver (which would make sense to me only if all other cpufreq drivers are fully supported now, too). Thanks, Jan

I am running 2.6.18-1.2693.fc6xen and I am receiving this message powernow-k8: Processor cpuid 681 not supported anyone know if xen works on processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 8 model name : AMD Athlon(tm) Prosussor stepping : 1 cpu MHz : 1994.985 cache size : 256 KB fdiv_bug : no hlt_bug : no

I am running 2.6.18-1.2693.fc6xen and I am receiving this message powernow-k8: Processor cpuid 681 not supported anyone know if xen works on processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 8 model name : AMD Athlon(tm) Prosussor stepping : 1 cpu MHz : 1994.985 cache size : 256 KB fdiv_bug : no hlt_bug : no

I have centos 5.4 on an HP laptop, as below the /proc/cpuinfo shows Dual core, however, there is only 1 processor listed in /proc/cpuinfo. Is the OS only using a single core? jerry ------ processor : 0 vendor_id : AuthenticAMD cpu family : 17 model : 3 model name : AMD Turion(tm) X2 Ultra Dual-Core Mobile ZM-86 stepping : 1 cpu MHz : 2400.000

Hi I have a compaq R4000 with the 2.4GIG AMD 64 bit. 4000+ rated. proc cpuinfo reports cpu Mhz as 997.481 Do I have to run the 64 bit version to have things run correctly? I just have the normal 4.2 loaded at this time. The laptop seems slow for 4000+ as reflected by the cpu Mhz also. Any thoughts on running the 32 bit version of 4.2 vs the 64 bit version of 4.2? Jerry

Hi, I recently subscribed to xen-users asking about a powernow-k8 problem, but in the meantime I am not sure if the users-list was the right place for it. So I decided to repeat my question here ;-) My current config is attached. --- snip --- Hi, I recently installed Xen on my AMD64 for my first time and so far, everything seems to work pretty fine. :-) I tried to enable cpu frequency

# HG changeset patch # User Boris Ostrovsky <boris.ostrovsky@amd.com> # Date 1345135101 -7200 # Node ID 85190245a94d9945b7656c971ba36f7d1eff5c19 # Parent 6d56e31fe1e1dc793379d662a36ff1731760eb0c AMD, powernow: Update P-state directly when _PSD''s CoordType is DOMAIN_COORD_TYPE_HW_ALL When _PSD''s CoordType is DOMAIN_COORD_TYPE_HW_ALL (i.e. shared_type is

Jerry Geis <geisj at pagestation.com <http://lists.centos.org/mailman/listinfo/centos>> wrote: >/ So I thought I would try those same options on my r4000 />/ laptop. they had no effect.... This AMD turion 64 4000+ />/ rating laptop is still running SLOWWW... />/ /proc/cpuinfo has the cpu Mhz running at 2393 / Yes, the 4000+ is 2.4GHz. >/ below is my dmesg output for

Hi. I''m working on xen 4.1 from gitco, is not a list to ask let me know please. Well I got a motherboard from biostar A780L3L 6.0v with a AMD Athlon II 640 3Ghz. This one got 4 cores, what took my attention is this message: powernow-k8: Found 1 virtualized processors powernow-k8: 0 : fid 0x0 gid 0x0 (3000 MHz) powernow-k8: 1 : fid 0x0 gid 0x0 (2300 MHz)

Hello, I recently tried Xen 3.0.3-testing on my 2x Opteron-244 SMP machine. Everything works well exept one detail, which is not unimportant to me: the powernow-k8 driver fails to switch frequencies. A closer look on the powernow-k8 source reveals, that some MSR write operations seem to be without any effect. A rdmsr() before and after the wrmsr() call reveals that no real change on the register

Hey all, Since moving a 4.3 x86-64 install from a single athlon64 to a new dual core AMD cpu it would appear that cool'n quiet is having trouble as is shown in the system logs; powernow-k8: ignoring illegal change in lo freq table-2 to 0x2 powernow-k8: transition frequency failed Any ideas ? Cheers, Brian.

After a couple hours last night.... doing a "killall -SIGUSR1 cpuspeed" bumps up the /proc/cpuinfo information for cpu mhz to 2393 Mhz. I did notice a little increase after that. However, the machine is still sluggish. I did a "hdparm -c 1 /dev/hda" but really did not notice any difference. I tried to download fglrx64_6_8_0_8.16.20-1.x86_64.rpm from ati (also 8.20.8) and get

Hi, I''ve recently installed xen-3.2.1 on my AMD Sempron(tm) machine. It runs gentoo 2.6.21 as dom0 and cpu frequency scaling works in dom0. But inside a domU, cpu frequency scaling is not working. By checking the boot log in domU I found that domU is unable to load the powernow driver: "powernow-k8: BIOS error - no PSB or ACPI _PSS objects" I wonder if it is possible to have

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