[Bug 846329] New: kernel cpufreq stuck at 'powersave' - cpus running at 800MHz!
https://bugzilla.novell.com/show_bug.cgi?id=846329 https://bugzilla.novell.com/show_bug.cgi?id=846329#c0 Summary: kernel cpufreq stuck at 'powersave' - cpus running at 800MHz! Classification: openSUSE Product: openSUSE 13.1 Version: RC 1 Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: jnelson-suse@jamponi.net QAContact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Firefox/24.0 After rebooting into openSUSE 13.1 (RC1), I noticed everything was slow slow slow. Finally figured out the CPUs were locked at 800MHz. linux-k1fq:/sys/devices/system/cpu/cpu0/cpufreq # cat *gov* performance powersave powersave linux-k1fq:/sys/devices/system/cpu/cpu0/cpufreq # echo performance > scaling_governor linux-k1fq:/sys/devices/system/cpu/cpu0/cpufreq # cat /proc/cpuinfo | grep MHz cpu MHz : 2100.000 cpu MHz : 2079.000 linux-k1fq:/sys/devices/system/cpu/cpu0/cpufreq # What's weird is that I only changed *one* cpu (although this is a B950 @ 2.1 GHz), both started working fine. [ 0.021189] smpboot: CPU0: Intel(R) Pentium(R) CPU B950 @ 2.10GHz (fam: 06, model: 2a, stepping: 07) I had been compiling the kernel for 10 minutes before I finally kicked the cpus into performance, so it wasn't that the computer was idle. Reproducible: Always Steps to Reproduce: 1. 2. 3. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=846329
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Jeff Mahoney
https://bugzilla.novell.com/show_bug.cgi?id=846329
https://bugzilla.novell.com/show_bug.cgi?id=846329#c1
Thomas Renninger
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors ondemand performance cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor ondemand
Strange, the ondemand governor is not avail? Can you double check, like I did above, please. Can you check via: zcat /proc/config.gz |less that these are set: CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_ONDEMAND=y cpupower frequency-info might also be interesting (cpupower package). Anything in /var/log/messages when cpufreq is initialized that might give a hint to what went wrong? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=846329
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Jon Nelson
https://bugzilla.novell.com/show_bug.cgi?id=846329
https://bugzilla.novell.com/show_bug.cgi?id=846329#c3
Thomas Renninger
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