[haiku-development] Fwd: Haiku will no longer boot on MacBookPro (confirmed - r31032 issue)
- From: Zenja Solaja <solaja@xxxxxxxxx>
- To: haiku-development@xxxxxxxxxxxxx
- Date: Tue, 16 Jun 2009 18:49:22 +1000
Alright, I've completely rebuilt r31031 and it boots fine on the MacBook
Pro, however a clean/rebuild of r31032 will fail to boot. The machine
reboots before displaying the Haiku boot screen, ie. you can only see a
flashing underscore for a couple of seconds, and then the machine
automatically reboots.
Changelog of r31032 (http://dev.haiku-os.org/changeset/31032):
"Implement most of the logic for write support in the GPT partitioning
system.
Actual writing is not implemented though and some key functions aren't
either.
Completely untested so far."
Michael / Axel, is there anything I can do to assist with debugging of this
changeset, since the problem can only be reproduced on Apple hardware.
Cheers.
Zenja
---------- Forwarded message ----------
From: Zenja Solaja <solaja@xxxxxxxxx>
Date: Tue, Jun 16, 2009 at 3:56 PM
Subject: Re: Haiku will no longer boot on MacBookPro (suspect r31026/7 MTRR
bugfix)
To: haiku-development@xxxxxxxxxxxxx
Hmmm, jam clean and rebuilding r31027 works fine, however jam clean and
rebuilding r31032 no longer boots.. So the problem is between r31027 and
r31032 (most probably the efi partitioning code changes). I'll try r31031
next to confirm.
Thanks for the patience.
On Tue, Jun 16, 2009 at 2:36 PM, Zenja Solaja <solaja@xxxxxxxxx> wrote:
> Morning/Afternoon/Evening.
>
> Today I tried revision r31068 on my MacBookPro, and it would immediately
> restart before showing the Haiku boot screen. Checking through the
> changelogs made me suspect r31032 (changes to EFI partitiioning scheme), so
> I tried r31031 and observed the same problem. Reverting to r31025 finally
> allowed the laptop to boot Haiku. After some more digging, I've found
> ticket #4018 which talks about problems with MTRR initialisation (preventing
> booting), which was fixed in r31026 and r31027. I suspect that the fix
> causes Haiku to no longer boot on a MacBookPro (C2D T7600@xxxxxxx).
>
> I'll attempt to pinpoint which specific change causes problems for the
> MacBookPro. Michael / Axel, since you're both infinately more familiar with
> the code in question, is there anything you'd recommend I try on this
> laptop?
>
> Cheers.
> Zenja
>
>
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