Re: rcu self-detected stall messages on OMAP3, 4 boards

From: Bruce, Becky
Date: Thu Sep 20 2012 - 11:04:30 EST


I'll give it a try on my panda later today.

B

Sent from my iPhone

On Sep 20, 2012, at 2:56 AM, "Paul Walmsley" <paul@xxxxxxxxx> wrote:

> Hi,
>
> On Wed, 19 Sep 2012, Paul E. McKenney wrote:
>
>> On Thu, Sep 13, 2012 at 06:52:10PM +0000, Paul Walmsley wrote:
>>
>>> On Wed, 12 Sep 2012, Paul E. McKenney wrote:
>>
>>>> Subodh Nijsure (also CCed) reported something that might be similar on
>>>> ARM, and also reported that setting the following got rid of the stalls:
>>>>
>>>> CONFIG_CPU_IDLE=y
>>>> CONFIG_CPU_IDLE_GOV_LADDER=y
>>>> CONFIG_CPU_IDLE_GOV_MENU=y
>>>>
>>>> At which point he was happy, which was good, but which also left the
>>>> underlying problem unsolved. Do these affect your system? If so,
>>>> do they cause a different ARM idle loop to be executed?
>>>
>>> Will give this a try. What board was Subodh using?
>>
>> Any news on trying the above settings?
>
> Sorry, haven't had the chance to try it yet due to the impending merge
> window opening. Once things settle down I'll give it a try -- or maybe
> someone else can test it in the meantime.
>
>
> - Paul
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