Re: cpu hotplug support broken in 2.6.23-rc3

[Thomas Gleixner]

On Fri, 2007-09-14 at 14:50 +0200, Thomas Gleixner wrote:
> Pavel,
> 
> On Fri, 2007-09-14 at 14:38 +0200, Pavel Machek wrote:
> > > I have an yet untested fix, which preserves the broadcast state across
> > > the offline state, but Len is looking into it as well, whether we can
> > > just reevaluate the power states (and the broadcast flags) when a cpu
> > > becomes online again. If Len can do that easily for 2.6.23, I'd prefer
> > > that.
> > 
> > Is there a patch you want me to test? Or does Len have anything to
> > play with?
> 
> Venki sent me an initial patch, but it has issues with the notify
> ordering. Find below my "cache the broadcast flags" version for testing.

Hmmpf, the flag is still cleared when the cpu goes offline. Need to take
a closer look.

	tglx


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