Re: Fix regression. Make hot unlplug of CPU0 work again.

On Fri, Oct 05, 2007 at 01:52:41PM +1000, Tony Breeds wrote:

Early in the 2.6.23 cycle we broke the ability to offline cpu0
(7ccb4a662462616f6be5053e26b79580e02f1529).  This patch fixes that by
ensuring that the (xics)  default irq server, will not be 0 when taking
cpu0 offline.

Also catches a use of irq, when virq should be used (I think that the
last one).

Hmm testing, this on a JS21 shows that it doesn't work.  I guess I'll go
back to the drawing board.

Yours Tony

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