Re: [rfc patch 2/2] rt/locking/hotplug: Fix rt_spin_lock_slowlock() migrate_disable() bug

From: Sebastian Andrzej Siewior
Date: Thu Apr 07 2016 - 12:49:04 EST


On 04/07/2016 06:37 AM, Mike Galbraith wrote:
> On Wed, 2016-04-06 at 14:00 +0200, Mike Galbraith wrote:
>> It'll take a hotplug beating seemingly as well as any non-rt kernel,
>> but big box NAKed it due to jitter, which can mean 1.0 things.. duh.
>
> FWIW, the below turned big box NAK into ACK. Stressing hotplug over
> night, iteration completion time went from about 2 1/2 hours with
> bandaids on the two identified rt sore spots, to an hour and 10 minutes
> as well for some reason, but whatever..

Just to be clear. I need #1, #2 from this thread and this below to make
it work?

> -Mike
>

Sebastian