linux-kernel - Re: PROBLEM: 3.0-rc kernels unbootable since -rc3

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Message-ID: <20110708002903.GI6014@linux.vnet.ibm.com>
Date:	Thu, 7 Jul 2011 17:29:03 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	julie Sullivan <kernelmail.jms@...il.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, laijs@...fujitsu.com,
	dipankar@...ibm.com, akpm@...ux-foundation.org,
	mathieu.desnoyers@...ymtl.ca, josh@...htriplett.org,
	niv@...ibm.com, tglx@...utronix.de, peterz@...radead.org,
	rostedt@...dmis.org, Valdis.Kletnieks@...edu, dhowells@...hat.com,
	eric.dumazet@...il.com, darren@...art.com, patches@...aro.org,
	torvalds@...ux-foundation.org
Subject: Re: PROBLEM: 3.0-rc kernels unbootable since -rc3

On Thu, Jul 07, 2011 at 09:47:03PM +0100, julie Sullivan wrote:
> > What happens if you revert only these two?
> > 
> > f8b7fc6b514f34a51875dd48dff70d4d17a54f38 rcu: Move RCU_BOOST #ifdefs to
> > header f a46e0899eec7a3069bcadd45dfba7bf67c6ed016 rcu: use softirq instead
> > of kthreads ex
> > 
> > If that works, perhaps we should try to break down a46e0899ee into
> > smaller pieces to see what is causing the trouble.
> 
> OK, if I revert those two only on v3.0-rc4, it boots.

Very good.  I have created a new jms.2011.07.07a branch in the -rcu
git tree at:

	git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu.git

Could you please try out the six commits on that branch and let me
know which of them work for you?

							Thanx, Paul
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