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From: Ingo Molnar <mingo@elte.hu>
To: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	Dipankar Sarma <dipankar@in.ibm.com>,
	Gautham Shenoy <ego@in.ibm.com>,
	Dhaval Giani <dhaval@linux.vnet.ibm.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [RFC][PATCH 2/2] rcu classic: new algorithm for callbacks-processing(v2)
Date: Fri, 18 Jul 2008 16:09:30 +0200	[thread overview]
Message-ID: <20080718140930.GT6875@elte.hu> (raw)
In-Reply-To: <48708F2F.2060406@cn.fujitsu.com>


* Lai Jiangshan <laijs@cn.fujitsu.com> 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,
> http://lkml.org/lkml/2008/7/3/24)

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.

	Ingo

  reply	other threads:[~2008-07-18 14:10 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-06  9:23 [RFC][PATCH 2/2] rcu classic: new algorithm for callbacks-processing(v2) Lai Jiangshan
2008-07-18 14:09 ` Ingo Molnar [this message]
2008-08-01 21:10   ` Paul E. McKenney
     [not found]   ` <20080721100433.GC8384@linux.vnet.ibm.com>
2008-08-01 21:10     ` Paul E. McKenney
2008-08-03  8:01       ` Lai Jiangshan
2008-08-04 22:54         ` Paul E. McKenney
2008-08-06  7:08           ` Lai Jiangshan
2008-08-07  3:19             ` Paul E. McKenney
     [not found]     ` <20080725165454.GA7147@linux.vnet.ibm.com>
2008-08-01 21:11       ` Paul E. McKenney

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