[Bug 68191] Re: Dual core sets each core to different cpufreq governor after resume

2007-01-06 Thread Luka Renko
Marking as confirmed due to many duplicates.
Not sure if the package is appropriate, I would think kernel is more likely 
responsible for this.

** Summary changed:

- Guidance Power Managment and Speedstep
+ Dual core sets each core to different cpufreq governor after resume

** Tags added: cpufreq

** Changed in: acpi-support (Ubuntu)
   Status: Needs Info = Confirmed

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Dual core sets each core to different cpufreq governor after resume
https://launchpad.net/bugs/68191

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Re: [Bug 68191] Re: Dual core sets each core to different cpufreq governor after resume

2007-01-06 Thread Peter Cordes
On Sat, Jan 06, 2007 at 02:24:12PM -, Luka Renko wrote:
 Marking as confirmed due to many duplicates.
 Not sure if the package is appropriate, I would think kernel is more
 likely responsible for this.

 The kernel could preserve that state across suspend, but it doesn't have to 
be the kernel's job.  user-space should apply the configured policy for CPU 
hotplug events.  This would ensure correct behaviour in all CPU hotplug
cases, not just suspend-resume where the kernel hot-unplugs all but one CPU
before suspend.  (This is maybe only likely to happen with virtual machines,
because most desktop hardware isn't physically hotplug safe.  And AFAIK Xen
prevents cpufreq from working.)

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 Confound him, too, who in this place set up a sundial, to cut and hack
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Dual core sets each core to different cpufreq governor after resume
https://launchpad.net/bugs/68191

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