At Fri, 11 May 2007 11:55:38 +0100,
Rui Paulo wrote:
>
> At Fri, 11 May 2007 12:19:37 +0200,
> Florian C. Smeets wrote:
> >
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA512
> >
> > Rui Paulo wrote:
> > > Hi,
> >
> > Hi!
> >
> > > I would like to bring this discussion to a wider audicence.
> > >
> > > So, here's the problem:
> > > As some of you already know, the second core on Apple's MacBooks fails
> > > to start. There are two nasty tricks to make it start (both involve
> > > interactivity from the user) that I know of.
> > >
> > > They are:
> > > 1) Press the power button during the IPI timeout;
> > > 2) Press a key [1] before the IPIs are sent *OR* during the
> > > IPI timeout.
> > >
> > > [1] This is really an interrupt. Pressing the Fn key doesn't work
> > > because the Fn key doesn't generate an interrupt.
> > >
> > > There tricks don't work on the MacBook Pro. While the source of the
> > > problem might be the same, it's not clear why the tricks work.
> > >
> >
> > Well i was able to boot a 7-CURRENT snapshot from February or March on a
> > first rev. MBP and it did recognize the second core when pressing the
> > power button right after this line:
> >
> > ACPI APIC Table: <APPLE Apple00>
> >
> > This used to work reliably.
>
> Have you tried pressing a key?
> I also have a first rev MBP and it works.
Oops, sorry, I don't have a MackBook Pro. I have a MacBook.
Do you really have a MacBook Pro? AFAIK that trick never worked on the
Pro version.
--
Rui Paulo
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