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RE: [Xen-devel] [PATCH] Disable SMP on the MacBook by default


  • To: "Marco Gerards" <mgerards@xxxxxxxxx>
  • From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
  • Date: Wed, 13 Sep 2006 22:38:44 +0100
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Wed, 13 Sep 2006 14:39:19 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcbXfAisTPMGP+a/SECu0zHPwMs6lgAALInA
  • Thread-topic: [Xen-devel] [PATCH] Disable SMP on the MacBook by default

> >> As I mentioned before, SMP is non functional on the MacBook.  It
even
> >> makes the machine crash.  I am using a patch to disable SMP support
in
> >> the case a MacBook was detected.  I have included this patch at the
> >> end of this email.
> >
> > Am I totally confused, or wasn't this solved by some update to grub
> > legacy to change A20 gate stuff?
> 
> The A20 gate patch was to make sure GRUB works on the Intel Mac.  The
> old way to enable the A20 gate is not present anymore.  So this patch
> is also required when using the Intel Mac, but unrelated.
> 
> The SMP issue can be avoided from GRUB when you press the "right
> arrow" key instead of "enter" to boot.  Someone mentioned this on the
> mailinglist, perhaps that is why you mixed up the two?

This does kinda suggest that a further Grub patch might be part of the
solution, no?

Are there any issues with SMP linux 2.6.16 at all?

Any idea what's going on?

What are distros link Ubuntu using for booting on MacBook? Do they go
with bootcamp/grub, or elilo?

Thanks,
Ian




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