Messages in this thread | | | Date | Wed, 9 Aug 2006 19:18:35 -0700 | Subject | Re: [Patch] restore the RCU callback to defer put_task_struct() Re: Problems with 2.6.17-rt8 | From | Bill Huey (hui) <> |
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On Thu, Aug 10, 2006 at 12:05:57AM +0200, Esben Nielsen wrote: > I had a long discussion with Paul McKenney about this. I opposed the patch > from a latency point of view: Suddenly a high-priority RT task could be > made into releasing a task_struct. It would be better for latencies to > defer it to a low priority task. > > The conclusion we ended up with was that it is not a job for the RCU > system, but it ought to be deferred to some other low priority task to > free the task_struct.
I agree. It's just hack to get it not to crash at this time. It really should be done in another facility or utilizing another threading context.
bill
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