On Wed, 2012-10-03 at 08:26 +0530, Preeti U Murthy wrote:
> From: Srivatsa S. Bhat <[email protected]>
> 
> In the event of CPU hotplug, the kernel modifies the cpusets'
> cpus_allowed masks as and when necessary to ensure that the tasks
> belonging to the cpusets have some place (online CPUs) to run on.
> And regular CPU hotplug is destructive in the sense that the kernel
> doesn't remember the original cpuset configurations set by the user,
> across hotplug operations.
> 
> However, suspend/resume (which uses CPU hotplug) is a special case in
> which the kernel has the responsibility to restore the system (during
> resume), to exactly the same state it was in before suspend.
> 
> commit   d35be8bab9b0ce44bed4b9453f86ebf64062721e
> Author: Srivatsa S. Bhat <[email protected]>
> Date:   Thu May 24 19:46:26 2012 +0530
> 
>           CPU hotplug, cpusets, suspend: Don't modify cpusets during 
> suspend/resume
> 
> Please apply this patch to the stable tree 3.0.y
[...]

Also applied to 3.2.y, thanks.

Ben.

-- 
Ben Hutchings
You can't have everything.  Where would you put it?

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