Re: v3.3-rc1, regression introduced by "sched, nohz: Implementsched group, domain aware nohz idle load balancing" when unplugging CPUs.

From: Peter Zijlstra
Date: Mon Jan 23 2012 - 16:01:32 EST


On Mon, 2012-01-23 at 15:56 -0500, Konrad Rzeszutek Wilk wrote:
> Not exactly sure how this patch does it, but with this git commit
> 0b005cf54eac170a8f22540ab096a6e07bf49e7c, the Linux kernel crashes
> if I try to hot unplug VCPUs to the first (initial) domain.
> This is found using git bisection, and if I use the kernel compiled
> with 69e1e811dcc436a6b129dbef273ad9ec22d095ce (the previous commit)
> it works nicely.

https://lkml.org/lkml/2012/1/19/463

is already on its way...
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