linux-kernel - Re: Regression with suspend resume 5a87182aa21d6d5d306840feab9321818dd3e2a3

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Date:	Mon, 16 Dec 2013 12:02:23 +0100
From:	Bjørn Mork <bjorn@...k.no>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	Zdenek Kabelac <zkabelac@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Lan Tianyu <tianyu.lan@...el.com>, jinchoi@...adcom.com,
	Paul Bolle <pebolle@...cali.nl>,
	ziegler@...il.mathematik.uni-freiburg.de,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	jbarnes@...tuousgeek.org
Subject: Re: Regression with suspend resume 5a87182aa21d6d5d306840feab9321818dd3e2a3

Viresh Kumar <viresh.kumar@...aro.org> writes:
> On 8 December 2013 15:54, Zdenek Kabelac <zkabelac@...hat.com> wrote:
>> I'm testing recent 3.13-rc kernel - and I've notice my Lenovo T61 is not
>> able to resume.  After bisect I've found commit:
>>
>> 5a87182aa21d6d5d306840feab9321818dd3e2a3
>
> That's my patch, sorry for all the trouble.. Just came back after vacations
> and multiple threads are there with this patch as culprit..
>
> I just tested this patch again on Rafael's linux-next branch and suspend/resume
> and Hibernation are working fine for me on my Thinkpad T420. I don't see any
> issues at all..
>
> scaling_governor: ondemand
> scaling_driver: acpi-cpufreq
>
>> When I just revert this commit with 374b105797c3d4f29c685f3be535c35f5689b30e
>> (3.13-rc3)   suspend/resume works again.
>> (I'm using  ondemand CPU governor)
>
>> Here is bisect log:
>
>> # bad: [2167e2399dc5e69c62db56d933e9c8cbe107620a] cpufreq: fix garbage
>> kobjects on errors during suspend/resume
>> git bisect bad 2167e2399dc5e69c62db56d933e9c8cbe107620a
>
> I don't read bisect logs well but doesn't you log say that the culprit is
> 2167e2399dc5e69c62db56d933e9c8cbe107620a instead?
>
> I am trying with this patch now, but will take some time for results to be out.

It's both patches in combination.  Interesting case, really :-)



Bjørn
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