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From: Pierre Ossman <pierre-list@ossman.eu>
To: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Linux PM mailing list <linux-pm@vger.kernel.org>
Subject: Re: [PATCH] cpufreq: fix current freq check on policy update
Date: Fri, 14 Feb 2014 15:34:23 +0100	[thread overview]
Message-ID: <20140214153423.340e404e@mjolnir.ossman.eu> (raw)
In-Reply-To: <52FE01A2.9030905@linux.vnet.ibm.com>

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On Fri, 14 Feb 2014 17:14:34 +0530
"Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com> wrote:

> 
> So with that, I don't see how the KHz value can turn out to be zero!
> 

Very interesting. But I can tell you that it is indeed happening. With
my earlier patch (that checked the return value), I did have this in my
dmesg:

[  188.044175] cpufreq: updating policy for CPU 1
[  188.044177] cpufreq: Driver did not initialize current freq
[  188.044177] cpufreq: setting new policy for CPU 0: 1000000 - 2800000 kHz

I can sprinkle some more pr_debug:s in there if you want to trace it
further?

Note that this is with 3.12.9, not master.

Rgds
-- 
     -- Pierre Ossman

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  parent reply	other threads:[~2014-02-14 14:34 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-14  6:26 [PATCH] cpufreq: fix current freq check on policy update Pierre Ossman
2014-02-14 11:44 ` Srivatsa S. Bhat
2014-02-14 13:58   ` Rafael J. Wysocki
2014-02-14 14:34   ` Pierre Ossman [this message]
2014-02-17  5:06     ` Viresh Kumar
2014-02-17  8:08     ` Srivatsa S. Bhat
2014-02-17  8:23       ` Viresh Kumar
2014-02-17  8:21         ` Srivatsa S. Bhat

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