linux-kernel - Re: [PATCH -tip] v9 scalable classic RCU implementation

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Message-ID: <20081202235145.GF6719@linux.vnet.ibm.com>
Date:	Tue, 2 Dec 2008 15:51:45 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	linux-kernel@...r.kernel.org, cl@...ux-foundation.org,
	mingo@...e.hu, akpm@...ux-foundation.org, manfred@...orfullife.com,
	dipankar@...ibm.com, josht@...ux.vnet.ibm.com, schamp@....com,
	niv@...ibm.com, dvhltc@...ibm.com, ego@...ibm.com,
	laijs@...fujitsu.com, rostedt@...dmis.org, peterz@...radead.org,
	penberg@...helsinki.fi, tglx@...utronix.de
Subject: Re: [PATCH -tip] v9 scalable classic RCU implementation

On Wed, Dec 03, 2008 at 12:31:44AM +0100, Andi Kleen wrote:
> > o	I now test with a more brutal random-selection online/offline
> > 	script (attached).  Probably more brutal than it needs to be
> > 	on the people reading it as well, but so it goes.
> 
> Does that cover both dynticks on and off? afaik the dynticks off problem
> I ran into on a 16 thread box and we discussed some time ago is still there.

The failures I see with this patch I also see with mainline.  Are you
seeing something with this patch that does not happen with mainline?

							Thanx, Paul
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