Re: [RFC][PATCH 2/2] rcu classic: new algorithm forcallbacks-processing(v2)
From: Ingo Molnar
Date: Fri Jul 18 2008 - 10:10:08 EST
* Lai Jiangshan <laijs@xxxxxxxxxxxxxx> wrote:
> This is v2, it's a little deference from v1 that I
> had send to lkml.
> use ACCESS_ONCE
> use rcu_batch_after/rcu_batch_before for batch # comparison.
> rcutorture test result:
> (hotplugs: do cpu-online/offline once per second)
> No CONFIG_NO_HZ: OK, 12hours
> No CONFIG_NO_HZ, hotplugs: OK, 12hours
> CONFIG_NO_HZ=y: OK, 24hours
> CONFIG_NO_HZ=y, hotplugs: Failed.
> (Failed also without my patch applied, exactly the same bug occurred,
thanks, i've applied this to tip/core/rcu - but it would be nice have an
ack/nak from Paul as well, before we can proceed further.
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