Re: race condition in schedule_on_each_cpu()

[weiqi@xxxxxxxxxxxxxx]

it's preemption mode related ,

on the 3.0.30-rt50, only   config kernel  with highest preemption level 
(Fully Preemptible Kernel (RT)) in cpu preemption model
will cause problem

and even i use the "Preemptible Kernel" or "Preemptible Kernel 
(Low-Latency Desktop)"  the problem would not happen..


> I looked through the logs but the only worker depletion related 
patches which pop up are around CPU hotplugs, so I don't think they 
apply here. If the problem is relatively easy to reproduce && you can't 
move onto a newer kernel, I'm afraid bisection probably is the best 
option. Thanks!
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