linux-kernel - Re: [PATCH V5 0/7] cpufreq: suspend early/resume late: dpm

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Message-ID: <5303C018.1020707@wwwdotorg.org>
Date:	Tue, 18 Feb 2014 13:18:32 -0700
From:	Stephen Warren <swarren@...dotorg.org>
To:	Viresh Kumar <viresh.kumar@...aro.org>
CC:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Lists linaro-kernel <linaro-kernel@...ts.linaro.org>,
	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Nishanth Menon <nm@...com>, Kgene Kim <kgene.kim@...sung.com>,
	jinchoi@...adcom.com, Lan Tianyu <tianyu.lan@...el.com>,
	Sebastian Capella <sebastian.capella@...aro.org>,
	Jonghwan Choi <jhbird.choi@...sung.com>
Subject: Re: [PATCH V5 0/7] cpufreq: suspend early/resume late: dpm_{suspend|resume}()

On 02/17/2014 02:20 AM, Viresh Kumar wrote:
> On 15 February 2014 05:33, Stephen Warren <swarren@...dotorg.org> wrote:
>> On 02/14/2014 03:23 PM, Rafael J. Wysocki wrote:
> 
>>> Well, it would be good to verify which part, then.
>>
>> Patch 2/7 appears to stop that message from being printed during
>> suspend, and perhaps reduce the number of times it's printed during
>> resume. Patch 7/7 stops the message being printed at all.
>>
>> Looking at patch 7, I wonder if it's simply because tegra_target() was
>> modified never to return -EBUSY, so the bug is still there, but it's
>> just been hidden.
> 
> No, the bug is removed now. Its hidden in current linus/master :)

I'm not sure what that means; I still see the message:

cpufreq: __cpufreq_driver_target: Failed to change cpu frequency: -16

... in Linus's tree (805937cf45f9 "Merge tag 'ext4_for_linus_stable' of
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4").
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