Re: [PATCH V2 2/2] rt: Increase/decrease the nr of migratory tasks when enabling/disabling migration

[Daniel Bristot de Oliveira]

On 06/27/2017 04:55 PM, Henri Roosen wrote:
>>
>> As rt_nr_migratory is unsigned, it will become > 0, notifying that the
>> RQ is overloaded, activating pushing mechanism without need.
> 
> What kind of symptoms might be triggered by this? I'm currently facing a
> problem with a continuous-reboot-test where the kernel seems to hang
> sometimes at a (seemingly) random place during kernel boot, on
> 4.9.33-rt23 with iMX6Q. A back-port of this patch to 4.9-rt seems to fix
> it. Or is it covering up a different problem?

The side effect is notifying that the RQ is overloaded, activating
pushing mechanism without need.

I was not seeing system freezes because of it... but, just in case...do
you have the console output from your board?

-- Daniel