From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Kuhne Subject: Re: 2.6.31.6 pv_ops with K8 cpufreq Date: Mon, 08 Feb 2010 15:43:02 +0100 Message-ID: <4B7022F6.5060405@access.denied> References: <4B6D9428.7080209@access.denied> Reply-To: xen-devel@lists.xensource.com Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0480155086==" Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --===============0480155086== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig6DB68DA2889B811D49F9C28A" This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig6DB68DA2889B811D49F9C28A Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Am 08.02.2010 15:32, schrieb Langsdorf, Mark: >> i've an Xen Server running on AMD K8 CPU. >> With Xen-3.4.0 and 2.6.24-24-xen Ubuntu Dom0 Kernel i can use=20 >> cpufreq via: >> cpufreq=3Ddom0-kernel >> >> But on 2.6.31.6 pv_ops Kernel i get: >> powernow-k8: Found 1 AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ >> processors (2 cpu cores) (version 2.20.00) >> [Firmware Bug]: powernow-k8: No compatible ACPI _PSS objects found. >> [Firmware Bug]: powernow-k8: Try again with latest BIOS. >> >> I've installed latest BIOS. >> I've read that cpufreq=3Dxen only work with K10. >> Is it so? >=20 > cpufreq=3Dxen only works with Family 10h and later processors, > but that's not the problem you're having. >=20 Will it changed, or does i need an K10 CPU? > Your problem is that the pv_ops kernel is not finding the > _PSS objects that the 2.6.24 kernel is finding. >=20 Mhh. > A lot of people are reporting this problem recently. There > appears to be a code change in recent Linux kernels that > causes some BIOSes to stop providing the _PSS objects to > the Linux kernel. I'm not sure if this is a broken BIOS > issue or a broken Linux issue but I am investigating it. >=20 I've tried an Vanilla 2.6.32.7 and cpufreq works fine. So, it is in 2.6.31 or in Xen Kernel. If you need more informations (CPU, Board ...), i'll try to help you. Regards, Stefan Kuhne --------------enig6DB68DA2889B811D49F9C28A Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJLcCL2AAoJEFLNPgL3IBVX4joH/1IWkmDpLIcQW/7xQuU99cXG zLpFPuaBVQJmgsrzb94Htuxh3k8agkfiqgGSh3rOqh69VL5QG4H+E/Yoc+FHfaVH FLfh+AbjMljx6Q8SicYnUJ83u/2DbR8o3GLzWTZ/AsHJjSbySMVeaxwZZsXFrnRT kvK8QcFeqkp8UCSlB3BXjy/fS6U2a3nzvt71+vlIvMkyzq2h2oyV9uBT52JAIb3c 0rhEBt2hab9gJI8Mi6Tvb4449xLKFCeCooC3wuWTd7+zW5NIzEV0P3WhyLeEIQAY PzjiKFSR6ZOvvhWJODivsAN8zpnM84Dq8oY2J7DQL2jtDREavL87IxoOMylA0us= =avpH -----END PGP SIGNATURE----- --------------enig6DB68DA2889B811D49F9C28A-- --===============0480155086== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel --===============0480155086==--