similar to: Can not modprobe acpi-cpufreq.ko in CentOS 5.2

One problem I've discovered in cpuspeed is that there are drivers missing: # cd /lib/modules/2.6.18-194.8.1.el5/kernel/drivers/cpufreq # ll total 72 -rwxr--r-- 1 root root 14408 Jul 1 21:40 cpufreq_conservative.ko -rwxr--r-- 1 root root 16168 Jul 1 21:40 cpufreq_ondemand.ko -rwxr--r-- 1 root root 7624 Jul 1 21:40 cpufreq_powersave.ko -rwxr--r-- 1 root root 12524 Jul 1 21:40

I converted an ext4 filesystem with btrfs-convert, mounted it, and wanted to do "lzop -d ...". The result was an immediate Oops (btrfs is on LVM, on dm-crypt, on /dev/sdb which is USB-connected). mini-904.img.lzo dentry_open failed BUG: unable to handle kernel paging request at ffffffcd IP: [<c01b5f36>] fput+0x6/0x30 *pde = 00575067 *pte = 00000000 Oops: 0002 [#1] SMP last sysfs

Modify the cpufreq ondemand governor so that it can get idle and total ticks from the Xen hypervisor. Linux and Xen have different ideas of what an idle tick is, so the Xen values for both have to be returned in the same platform hypercall. Otherwise, use basically the same scheme as native Linux. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> iff -r 9bf1ddd0f6bf

.. snip.. >> Both of them (acpi-cpufreq.c and powernow-k8.c) have a symbol >> dependency on drivers/acpi/processor.c > > But them being ''m'' or ''y'' shouldn''t matter in the end. I thought you were saying it matters - as it should be done around the same time as cpufreq drivers were loaded? .. snip.. >> For a), this would mean some

Currently cpufreq and xenpm are out of sync. Fix cpufreq reporting of if turbo mode is enabled or not. Fix xenpm to not decode for tristate, but a boolean. Signed-off-by: Jacob Shin <jacob.shin@amd.com> --- tools/misc/xenpm.c | 14 +++----------- xen/drivers/cpufreq/utility.c | 2 +- 2 files changed, 4 insertions(+), 12 deletions(-) diff --git a/tools/misc/xenpm.c

Some versions of GCC are too stupid to figure out that cpufreq_dom is only used if !!domexist and always set in that case, and complain that it may be used uninitialised. (In general it is IMO better to avoid these kind of flag variables; I would prefer structures like for (...) { cpufreq_dom = dom; if (...) goto cpufreq_dom_found; } cpufreq_dom = 0; cpufreq_dom_found: but on

This fixes an actual bug (failure to exit from a function after an allocation failure), an inconsistency (not removing the cpufreq_dom list member upon failure), and a latent bug (not clearing the current governor upon governor initialization failure when there was no old one; latent because the only current code path leading to this situation frees the policy upon failure and hence the governor

Hi, I am trying to use the cpufreq driver and was unable to find the same on my xen kernel. I am currently running the folloing kernel: # uname -a Linux mbr-Dom0-3 2.6.18.8-xen #1 SMP Wed Jan 28 10:27:04 IST 2009 x86_64 x86_64 x86_64 GNU/Linux I read in certain places that some versions of Xen donot support cpufreq. But the information was not too clear. Could someone kindly tell me if cpufreq

Hi all :) I''ve been using a tc setup for almost two years, but at some point (probably when I switched to kernel 2.6.x, but I''m not sure) it has started making something very weird. For a certain class, the rate is 125000bit and the ceil is 270000bit, but the fastest rate I get is about 75-80000bit, instead of the "promised" 125000, *with no other traffic in

Modify the cpufreq ondemand governor so that it can get idle and total nsecs from the Xen hypervisor.  Xen uses nsecs to measure idle time, while Linux uses ticks. Other than accounting for that difference, use the same algorithm to calculate idle time as Linux does. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> diff -r 26962454b508 drivers/cpufreq/cpufreq_ondemand.c ---

With my OQO, I get the following message when I try to suspend: cpufreq: suspend failed to assert current frequency is what timing core thinks it is. I see in /var/log/messages: kernel: acpi-cpufreq: CPU0 - ACPI performance management activated There are a number of apps and such dedicated to 'cpufreq' on the system. I have done a bit of searching and have not figured out what to do

it seems getting lost, and thus resend. Thanks, Kevin -----Original Message----- From: Tian, Kevin Sent: 2008年7月24日 8:39 To: ''Jan Beulich'' Cc: Liu, Jinsong; Keir Fraser; xen-devel@lists.xensource.com; mark.langsdorf@amd.com Subject: RE: [Xen-devel] cpufreq info propagation >From: Jan Beulich >Sent: 2008年7月23日 18:13 >> >>startup info is viable. But how

struct cpufreq_policy, including a cpumask_t member, gets copied in cpufreq_limit_change(), cpufreq_add_cpu(), set_cpufreq_gov(), and set_cpufreq_para(). Make the member a cpumask_var_t, thus reducing the amount of data needing copying (particularly with large NR_CPUS). Signed-off-by: Jan Beulich <jbeulich@suse.com> --- 2011-09-20.orig/xen/arch/x86/acpi/cpufreq/cpufreq.c 2011-10-12

I''ve upgraded to linux 3.10 and enabled extended inode refs and skinny metadata extent refs with these commands: btrfstune -r /dev/sdc1 btrfstune -x /dev/sdc1 Since then, I have "WARNING: at fs/btrfs/backref.c:903 find_parent_nodes+0x616/0x815 [btrfs]()" showing up like crazy: # grep -c "WARNING: at fs/btrfs/backref.c:903" syslog 181819 That''s after just

Currently, enable/disable turbo mode on AMD is broken: $ xenpm enable-turbo-mode 0 <-- works and proper CPU MSR bit is set $ xenpm enable-turbo-mode 1 <-- silently broken, MSR bit not set Since ->turbo is per policy, when user requests to enable/disable turbo mode, we need to set the bit in all of the ->cpus that this policy affects. --- xen/arch/x86/acpi/cpufreq/powernow.c | 2

Hello, I''ve tried to get the CPUFreq plugin of collectd running in dom0. But I mentioned that it isn''t so easy to get a file in sysfs on the rigth place. I know that the value has to come from hypervisor and I''ve seen the code in xenpm. The only value I need is "/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq" which would create cpufreq.c. Can anyone

Hi all :) I''ve tested this and having a cpufreq that slows down the CPU affects the rate of HTB. My ondemand cpufreq governor scales down the CPU frequency about 40% and this is more or less the slowdown the rate suffers, 40%. Any known way of dealing with this without having to disable cpufreq? Thanks in advance :) Ra?l N??ez de Arenas Coronado -- Linux Registered

Hi, I noticed that the fan of my centrino is very often running since I use Xen (the load is very low still). Also the cpufreq is always at 600MHz (the max is 1500MHz), regardless of what of what heavy computations I do (e.g. calculating md5sums). I heard that it is not possible to run a cpufreq scheduler like powernowd or cpufreqd, but would it be possible to set the cpu frequency at least

[snip] Aug 21 09:08:49 BUBBLE kernel: [ 32.126698] PGD 2b01067 PUD bc850067 PMD = 242d067 PTE fffffffffffff237 Aug 21 09:08:49 BUBBLE kernel: [ 32.126716] CPU 0=20 Aug 21 09:08:49 BUBBLE kernel: [ 32.126720] Modules linked in: cpufreq_po= wersave cpufreq_conservative cpufreq_userspace cpufreq_stats parport_pc ppd= ev lp parport bridge stp xen_evtchn xenfs binfmt_misc uinput fuse ext2 hdap=

Enable THERM_CONTROL MSR write for dom0 even cpufreq=xen Signed-off-by: Wei Gang <gang.wei@intel.com> diff -r bd683e0397b4 xen/arch/x86/traps.c --- a/xen/arch/x86/traps.c Tue Feb 17 22:29:38 2009 +0800 +++ b/xen/arch/x86/traps.c Wed Feb 25 11:23:01 2009 +0800 @@ -2187,10 +2187,17 @@ static int emulate_privileged_op(struct case MSR_IA32_MPERF: case MSR_IA32_APERF: