On Sun, 24 Mar 2013 15:32:39 +0530
Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote:
> Hi Duncan,
>
> Please reply to this mail rather than using bugzilla as all others
> might not be following bugzilla rerport.
Thanks. I'm used to it being the other way 'round.
> >> [PATCH] cpufreq: acpi-cpufreq: Set policy->cpus correctly
> >> from .init()
> >
> > You appear to be on the right path as all the dirs and symlinks are
> > there now, but it looks like you'll need a v2 as the order/pairing
> > is now very strange, both as booted and after a s2ram/resume (which
> > changes the order but it's still strange):
> Hmm.. Can you try one thing? Run 3.8 over your machine and give
> output of cpufreq-info and ls -ld after boot and resume..
>
> I would like to see what's the original behavior.
Good idea! =:^) It now appears that your bug simply cascaded on a
previously unreported bug in earlier kernels.
The 3.8 ls -dl isn't too interesting as they were all dirs not symlinks
then, and if they hadn't stuck around after a suspend/resume I'd have
definitely noticed and reported the bug back then, but it's still
useful to confirm.
The 3.8 pre-suspend and post resume ls -dl are identical -- no missing
dirs (and no symlinks):
/sys/devices/system/cpu/cpu0/cpufreq/
/sys/devices/system/cpu/cpu1/cpufreq/
/sys/devices/system/cpu/cpu2/cpufreq/
/sys/devices/system/cpu/cpu3/cpufreq/
/sys/devices/system/cpu/cpu4/cpufreq/
/sys/devices/system/cpu/cpu5/cpufreq/
The interesting results are the 3.8 cpufreq-info. I'll attach the full
output, but here's the interesting bit:
3.8 pre-suspend cpufreq-info excerpts (nicely paired, as are the
pre-patch pre-suspend results for 3.9-rc):
analyzing CPU 0:
CPUs which run at the same hardware frequency: 0 1
CPUs which need to have their frequency coordinated by software: 0
analyzing CPU 1:
CPUs which run at the same hardware frequency: 0 1
CPUs which need to have their frequency coordinated by software: 1
analyzing CPU 2:
CPUs which run at the same hardware frequency: 2 3
CPUs which need to have their frequency coordinated by software: 2
analyzing CPU 3:
CPUs which run at the same hardware frequency: 2 3
CPUs which need to have their frequency coordinated by software: 3
analyzing CPU 4:
CPUs which run at the same hardware frequency: 4 5
CPUs which need to have their frequency coordinated by software: 4
analyzing CPU 5:
CPUs which run at the same hardware frequency: 4 5
CPUs which need to have their frequency coordinated by software: 5
3.8 post-resume (screwed up pairing, so that bit's not a 3.9 thing, I
just noticed it in 3.9 due to the now missing symlinks/dirs):
analyzing CPU 0:
CPUs which run at the same hardware frequency: 0 1
CPUs which need to have their frequency coordinated by software: 0
analyzing CPU 1:
CPUs which run at the same hardware frequency: 0 1
CPUs which need to have their frequency coordinated by software: 1
analyzing CPU 2:
CPUs which run at the same hardware frequency: 2
CPUs which need to have their frequency coordinated by software: 2
analyzing CPU 3:
CPUs which run at the same hardware frequency: 3
CPUs which need to have their frequency coordinated by software: 3
analyzing CPU 4:
CPUs which run at the same hardware frequency: 2 4
CPUs which need to have their frequency coordinated by software: 4
analyzing CPU 5:
CPUs which run at the same hardware frequency: 3 5
CPUs which need to have their frequency coordinated by software: 5
--
Duncan - No HTML messages please, as they are filtered as spam.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master." Richard Stallman
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@xxxxxxxxxxxxxxx, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 4.0 us.
hardware limits: 1.40 GHz - 3.60 GHz
available frequency steps: 3.60 GHz, 3.00 GHz, 2.40 GHz, 1.80 GHz, 1.40 GHz
available cpufreq governors: conservative, performance
current policy: frequency should be within 1.40 GHz and 3.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 1.40 GHz.
cpufreq stats: 3.60 GHz:0.00%, 3.00 GHz:0.20%, 2.40 GHz:0.16%, 1.80 GHz:0.20%, 1.40 GHz:99.44% (4)
analyzing CPU 1:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1
CPUs which need to have their frequency coordinated by software: 1
maximum transition latency: 4.0 us.
hardware limits: 1.40 GHz - 3.60 GHz
available frequency steps: 3.60 GHz, 3.00 GHz, 2.40 GHz, 1.80 GHz, 1.40 GHz
available cpufreq governors: conservative, performance
current policy: frequency should be within 1.40 GHz and 3.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 1.40 GHz.
cpufreq stats: 3.60 GHz:0.03%, 3.00 GHz:0.14%, 2.40 GHz:0.18%, 1.80 GHz:0.35%, 1.40 GHz:99.29% (6)
analyzing CPU 2:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 2 3
CPUs which need to have their frequency coordinated by software: 2
maximum transition latency: 4.0 us.
hardware limits: 1.40 GHz - 3.60 GHz
available frequency steps: 3.60 GHz, 3.00 GHz, 2.40 GHz, 1.80 GHz, 1.40 GHz
available cpufreq governors: conservative, performance
current policy: frequency should be within 1.40 GHz and 3.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 1.40 GHz.
cpufreq stats: 3.60 GHz:0.00%, 3.00 GHz:0.15%, 2.40 GHz:0.15%, 1.80 GHz:0.17%, 1.40 GHz:99.54% (4)
analyzing CPU 3:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 2 3
CPUs which need to have their frequency coordinated by software: 3
maximum transition latency: 4.0 us.
hardware limits: 1.40 GHz - 3.60 GHz
available frequency steps: 3.60 GHz, 3.00 GHz, 2.40 GHz, 1.80 GHz, 1.40 GHz
available cpufreq governors: conservative, performance
current policy: frequency should be within 1.40 GHz and 3.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 1.40 GHz.
cpufreq stats: 3.60 GHz:0.04%, 3.00 GHz:0.11%, 2.40 GHz:0.22%, 1.80 GHz:0.18%, 1.40 GHz:99.45% (4)
analyzing CPU 4:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 4 5
CPUs which need to have their frequency coordinated by software: 4
maximum transition latency: 4.0 us.
hardware limits: 1.40 GHz - 3.60 GHz
available frequency steps: 3.60 GHz, 3.00 GHz, 2.40 GHz, 1.80 GHz, 1.40 GHz
available cpufreq governors: conservative, performance
current policy: frequency should be within 1.40 GHz and 3.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 1.40 GHz.
cpufreq stats: 3.60 GHz:0.00%, 3.00 GHz:0.17%, 2.40 GHz:0.30%, 1.80 GHz:0.20%, 1.40 GHz:99.34% (4)
analyzing CPU 5:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 4 5
CPUs which need to have their frequency coordinated by software: 5
maximum transition latency: 4.0 us.
hardware limits: 1.40 GHz - 3.60 GHz
available frequency steps: 3.60 GHz, 3.00 GHz, 2.40 GHz, 1.80 GHz, 1.40 GHz
available cpufreq governors: conservative, performance
current policy: frequency should be within 1.40 GHz and 3.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 1.40 GHz.
cpufreq stats: 3.60 GHz:0.00%, 3.00 GHz:0.22%, 2.40 GHz:0.15%, 1.80 GHz:0.30%, 1.40 GHz:99.33% (4)
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@xxxxxxxxxxxxxxx, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 4.0 us.
hardware limits: 1.40 GHz - 3.60 GHz
available frequency steps: 3.60 GHz, 3.00 GHz, 2.40 GHz, 1.80 GHz, 1.40 GHz
available cpufreq governors: conservative, performance
current policy: frequency should be within 1.40 GHz and 3.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 1.40 GHz.
cpufreq stats: 3.60 GHz:0.00%, 3.00 GHz:0.04%, 2.40 GHz:0.03%, 1.80 GHz:0.04%, 1.40 GHz:99.89% (6)
analyzing CPU 1:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1
CPUs which need to have their frequency coordinated by software: 1
maximum transition latency: 4.0 us.
hardware limits: 1.40 GHz - 3.60 GHz
available frequency steps: 3.60 GHz, 3.00 GHz, 2.40 GHz, 1.80 GHz, 1.40 GHz
available cpufreq governors: conservative, performance
current policy: frequency should be within 1.40 GHz and 3.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 1.40 GHz.
cpufreq stats: 3.60 GHz:0.00%, 3.00 GHz:0.00%, 2.40 GHz:0.08%, 1.80 GHz:0.04%, 1.40 GHz:99.88% (3)
analyzing CPU 2:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 2
CPUs which need to have their frequency coordinated by software: 2
maximum transition latency: 4.0 us.
hardware limits: 1.40 GHz - 3.60 GHz
available frequency steps: 3.60 GHz, 3.00 GHz, 2.40 GHz, 1.80 GHz, 1.40 GHz
available cpufreq governors: conservative, performance
current policy: frequency should be within 1.40 GHz and 3.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 1.40 GHz.
cpufreq stats: 3.60 GHz:0.00%, 3.00 GHz:0.00%, 2.40 GHz:0.00%, 1.80 GHz:0.76%, 1.40 GHz:99.24% (2)
analyzing CPU 3:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 3
CPUs which need to have their frequency coordinated by software: 3
maximum transition latency: 4.0 us.
hardware limits: 1.40 GHz - 3.60 GHz
available frequency steps: 3.60 GHz, 3.00 GHz, 2.40 GHz, 1.80 GHz, 1.40 GHz
available cpufreq governors: conservative, performance
current policy: frequency should be within 1.40 GHz and 3.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 1.40 GHz.
cpufreq stats: 3.60 GHz:0.00%, 3.00 GHz:0.04%, 2.40 GHz:0.04%, 1.80 GHz:0.15%, 1.40 GHz:99.77% (4)
analyzing CPU 4:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 2 4
CPUs which need to have their frequency coordinated by software: 4
maximum transition latency: 4.0 us.
hardware limits: 1.40 GHz - 3.60 GHz
available frequency steps: 3.60 GHz, 3.00 GHz, 2.40 GHz, 1.80 GHz, 1.40 GHz
available cpufreq governors: conservative, performance
current policy: frequency should be within 1.40 GHz and 3.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 1.40 GHz.
cpufreq stats: 3.60 GHz:0.02%, 3.00 GHz:0.03%, 2.40 GHz:0.02%, 1.80 GHz:0.21%, 1.40 GHz:99.71% (4)
analyzing CPU 5:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 3 5
CPUs which need to have their frequency coordinated by software: 5
maximum transition latency: 4.0 us.
hardware limits: 1.40 GHz - 3.60 GHz
available frequency steps: 3.60 GHz, 3.00 GHz, 2.40 GHz, 1.80 GHz, 1.40 GHz
available cpufreq governors: conservative, performance
current policy: frequency should be within 1.40 GHz and 3.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 1.40 GHz.
cpufreq stats: 3.60 GHz:0.00%, 3.00 GHz:0.04%, 2.40 GHz:0.03%, 1.80 GHz:0.12%, 1.40 GHz:99.81% (4)
