Re: [PATCH RFC 0/41] RCU commits for 3.4

[Kevin Hilman]

"Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx> writes:

> On Thu, Feb 02, 2012 at 02:47:14PM -0800, Kevin Hilman wrote:
>> Hi Paul,
>> 
>> "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx> writes:
>> 
>> > This patchset makes RCU more aggressive about entering dyntick-idle mode
>> > in order to improve energy efficiency, 
>> 
>> I gave this series a spin on an ARM/SMP platform (OMAP4) and the boot
>> hung (tail end of boot log below.)  I then realized that had isolcpus=1
>> on the cmdline from a previous experiment.  Removing isolcpus from the
>> cmdline got me back to a working boot.
>> 
>> IIRC, some want to remove isolcpus, so I'm not sure if it's expected to
>> work with your series, but thought you'd want to know.
>
> Not expected behavior, thank you for testing!
>
> Could you please share your .config?

Sure, attached.

Kevin

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