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

To: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] Disable SMP on the MacBook by default
From: Marco Gerards <mgerards@xxxxxxxxx>
Date: Wed, 13 Sep 2006 23:38:46 +0200
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Marco Gerards <mgerards@xxxxxxxxx>
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In-reply-to: <3AAA99889D105740BE010EB6D5A5A3B201191E@xxxxxxxxxxxxxxxxxxxxxxxxxx> (Ian Pratt's message of "Wed, 13 Sep 2006 21:57:05 +0100")
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"Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx> writes:

Hi Ian,

>> 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?


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