Re: [PATCH RFC] rcu: Limit GP initialization to CPUs that have beenonline

[Paul E. McKenney]

On Wed, Mar 14, 2012 at 08:08:01AM -0500, Dimitri Sivanich wrote:
> On Wed, Mar 14, 2012 at 01:40:41PM +0100, Mike Galbraith wrote:
> > On Wed, 2012-03-14 at 10:24 +0100, Mike Galbraith wrote: 
> > > On Tue, 2012-03-13 at 17:24 -0700, Paul E. McKenney wrote: 
> > > > The following builds, but is only very lightly tested.  Probably full
> > > > of bug, especially when exercising CPU hotplug.
> > > 
> > > You didn't say RFT, but...
> > > 
> > > To beat on this in a rotund 3.0 kernel, the equivalent patch would be
> > > the below?  My box may well answer that before you can.. hope not ;-)
> > 
> > (Darn, it did.  Box says boot stall with virgin patch in tip too though.
> > Wedging it straight into 3.0 was perhaps a tad premature;)
> 
> I saw the same thing with 3.3.0-rc7+ and virgin patch on UV.  Boots fine without the patch.

Right...  Bozo here forgot to set the kernel parameters for large-system
emulation during testing.  Apologies for the busted patch, will fix.

And thank you both for the testing!!!

Hey, at least I labeled it "RFC".  ;-)

							Thanx, Paul

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