* cpufreq v3.17-rc7 error: "cpufreq: cpufreq_resume: Failed to start governor for policy: f6909a00"
@ 2014-10-02 11:45 Paul Bolle
2014-10-02 11:55 ` Paul Bolle
0 siblings, 1 reply; 6+ messages in thread
From: Paul Bolle @ 2014-10-02 11:45 UTC (permalink / raw)
To: Rafael J. Wysocki, Viresh Kumar; +Cc: linux-pm, linux-kernel
Running v3.17-rc7 I see a new (for me) error, apparently during each
resume (from suspend) or thaw (from hibernate):
cpufreq: cpufreq_resume: Failed to start governor for policy: f6909a00
The logs on this laptop go back over nine months (ie, the oldest kernels
I see in there are rc's for v3.13). It has basically booted every rc in
between and never printed this error before. It is an (outdated!)
ThinkPad X41 (single core i686).
Note that I did not actually notice anything odd before checking the
logs. But this laptop is getting rather painful to use, so I'll probably
only notice _major_ regressions.
Feel free to prod me for further details.
Paul Bolle
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: cpufreq v3.17-rc7 error: "cpufreq: cpufreq_resume: Failed to start governor for policy: f6909a00"
2014-10-02 11:45 cpufreq v3.17-rc7 error: "cpufreq: cpufreq_resume: Failed to start governor for policy: f6909a00" Paul Bolle
@ 2014-10-02 11:55 ` Paul Bolle
2014-10-02 16:38 ` Rafael J. Wysocki
0 siblings, 1 reply; 6+ messages in thread
From: Paul Bolle @ 2014-10-02 11:55 UTC (permalink / raw)
To: Rafael J. Wysocki, Viresh Kumar; +Cc: linux-pm, linux-kernel
Paul Bolle schreef op do 02-10-2014 om 13:45 [+0200]:
> Running v3.17-rc7 I see a new (for me) error, apparently during each
> resume (from suspend) or thaw (from hibernate):
> cpufreq: cpufreq_resume: Failed to start governor for policy: f6909a00
So there are only two recent commits:
7106e02baed4 ("cpufreq: release policy->rwsem on error")
8e30444e1530 ("cpufreq: fix cpufreq suspend/resume for
intel_pstate")
Would it be useful to test whether reverting the oldest commit,
8e30444e1530 ("cpufreq: fix cpufreq suspend/resume for intel_pstate"),
changes anything?
Paul Bolle
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: cpufreq v3.17-rc7 error: "cpufreq: cpufreq_resume: Failed to start governor for policy: f6909a00"
2014-10-02 11:55 ` Paul Bolle
@ 2014-10-02 16:38 ` Rafael J. Wysocki
2014-10-02 16:33 ` Paul Bolle
0 siblings, 1 reply; 6+ messages in thread
From: Rafael J. Wysocki @ 2014-10-02 16:38 UTC (permalink / raw)
To: Paul Bolle; +Cc: Viresh Kumar, linux-pm, linux-kernel
On Thursday, October 02, 2014 01:55:11 PM Paul Bolle wrote:
> Paul Bolle schreef op do 02-10-2014 om 13:45 [+0200]:
> > Running v3.17-rc7 I see a new (for me) error, apparently during each
> > resume (from suspend) or thaw (from hibernate):
> > cpufreq: cpufreq_resume: Failed to start governor for policy: f6909a00
>
> So there are only two recent commits:
> 7106e02baed4 ("cpufreq: release policy->rwsem on error")
> 8e30444e1530 ("cpufreq: fix cpufreq suspend/resume for
> intel_pstate")
>
> Would it be useful to test whether reverting the oldest commit,
> 8e30444e1530 ("cpufreq: fix cpufreq suspend/resume for intel_pstate"),
> changes anything?
Can you please try linux-pm.git/linux-next? There's a commit from Viresh in
there with a chance to fix this and which I'm going to push to Linus shortly?
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: cpufreq v3.17-rc7 error: "cpufreq: cpufreq_resume: Failed to start governor for policy: f6909a00"
2014-10-02 16:38 ` Rafael J. Wysocki
@ 2014-10-02 16:33 ` Paul Bolle
2014-10-02 17:34 ` Rafael J. Wysocki
0 siblings, 1 reply; 6+ messages in thread
From: Paul Bolle @ 2014-10-02 16:33 UTC (permalink / raw)
To: Rafael J. Wysocki; +Cc: Viresh Kumar, linux-pm, linux-kernel
On Thu, 2014-10-02 at 18:38 +0200, Rafael J. Wysocki wrote:
> Can you please try linux-pm.git/linux-next? There's a commit from Viresh in
> there with a chance to fix this and which I'm going to push to Linus shortly?
Do you mean b1b12babe3b72cfb08b875245e5a5d7c2747c772 ("cpufreq: update
'cpufreq_suspended' after stopping governors")? Does that require
anything else from that tree? It doesn't matter much, but if possible I
would prefer to add as few patches as I can get away with.
Paul Bolle
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: cpufreq v3.17-rc7 error: "cpufreq: cpufreq_resume: Failed to start governor for policy: f6909a00"
2014-10-02 16:33 ` Paul Bolle
@ 2014-10-02 17:34 ` Rafael J. Wysocki
2014-10-02 21:47 ` Paul Bolle
0 siblings, 1 reply; 6+ messages in thread
From: Rafael J. Wysocki @ 2014-10-02 17:34 UTC (permalink / raw)
To: Paul Bolle; +Cc: Viresh Kumar, linux-pm, linux-kernel
On Thursday, October 02, 2014 06:33:28 PM Paul Bolle wrote:
> On Thu, 2014-10-02 at 18:38 +0200, Rafael J. Wysocki wrote:
> > Can you please try linux-pm.git/linux-next? There's a commit from Viresh in
> > there with a chance to fix this and which I'm going to push to Linus shortly?
>
> Do you mean b1b12babe3b72cfb08b875245e5a5d7c2747c772 ("cpufreq: update
> 'cpufreq_suspended' after stopping governors")? Does that require
> anything else from that tree? It doesn't matter much, but if possible I
> would prefer to add as few patches as I can get away with.
Yes, that's the commit. It should work alone too.
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: cpufreq v3.17-rc7 error: "cpufreq: cpufreq_resume: Failed to start governor for policy: f6909a00"
2014-10-02 17:34 ` Rafael J. Wysocki
@ 2014-10-02 21:47 ` Paul Bolle
0 siblings, 0 replies; 6+ messages in thread
From: Paul Bolle @ 2014-10-02 21:47 UTC (permalink / raw)
To: Rafael J. Wysocki; +Cc: Viresh Kumar, linux-pm, linux-kernel
Rafael J. Wysocki schreef op do 02-10-2014 om 19:34 [+0200]:
> On Thursday, October 02, 2014 06:33:28 PM Paul Bolle wrote:
> > On Thu, 2014-10-02 at 18:38 +0200, Rafael J. Wysocki wrote:
> > > Can you please try linux-pm.git/linux-next? There's a commit from Viresh in
> > > there with a chance to fix this and which I'm going to push to Linus shortly?
> >
> > Do you mean b1b12babe3b72cfb08b875245e5a5d7c2747c772 ("cpufreq: update
> > 'cpufreq_suspended' after stopping governors")? Does that require
> > anything else from that tree? It doesn't matter much, but if possible I
> > would prefer to add as few patches as I can get away with.
>
> Yes, that's the commit. It should work alone too.
Applies and builds cleanly on top of v3.17-rc7. Light testing (two
suspend and resume cycles and one hibernate and thaw cycle) doesn't
trigger the error.
So that commit works for this ThinkPad X41 too, it seems.
Paul Bolle
^ permalink raw reply [flat|nested] 6+ messages in thread
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2014-10-02 11:45 cpufreq v3.17-rc7 error: "cpufreq: cpufreq_resume: Failed to start governor for policy: f6909a00" Paul Bolle
2014-10-02 11:55 ` Paul Bolle
2014-10-02 16:38 ` Rafael J. Wysocki
2014-10-02 16:33 ` Paul Bolle
2014-10-02 17:34 ` Rafael J. Wysocki
2014-10-02 21:47 ` Paul Bolle
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