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From: Marco Minetti <marco.minetti@novetica.org>
Date: Thu, 04 Sep 2014 16:21:19 +0200
In-Reply-To: <20140904131038.GC1675@ERROL.INI.CMU.EDU>
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Subject: Re: [Qemu-devel] [Bug 1358722] Re: latest acpi commits causes
 memory allocation fault in macosx
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To: "Gabriel L. Somlo" <gsomlo@gmail.com>
Cc: qemu-devel@nongnu.org

On Thu, 2014-09-04 at 09:10 -0400, Gabriel L. Somlo wrote:
> On Thu, 04 Sep 2014 08:43:12, Marco Minetti wrote:
> > The experiments for running MacOSXon KVM/QEMU I followed are here:
> > http://www.contrib.andrew.cmu.edu/~somlo/OSXKVM/
> > 
> [...] 
> > 
> > Bug description:
> >   qemu release 2.1.0
> > 
> >   Hi,
> >   I've found a regression on MacOSX guest (10.9.4) after merging the following commits 
> > 
> >   18045fb9f457a0f0cba2bd113c748a2dcb4ed39e pc: future-proof migration-compatibility of ACPI tables
> >   868270f23d8db2cce83e4f082fe75e8625a5fbf9 acpi-build: tweak acpi migration limits
> > 
> >   The migration limits make x86 chameleon bootloader generate a memory
> >   allocation error with 0xdeadbeef address at line 899 in source file:
> > 
> >   http://forge.voodooprojects.org/p/chameleon/source/tree/2360/branches/Bungo/i386/libsaio/acpi_patcher.c
> > 
> >   I've not tried to recompile chameleon yet.
> > 
> > To manage notifications about this bug go to:
> > https://bugs.launchpad.net/qemu/+bug/1358722/+subscriptions
> 
> If you absolutely need those commits, you may be better off just
> using qemu's git master branch altogether (which works fine, at
> least for me). Grabbing two more or less arbitrary commits from git
> and applying them on top of 2.1.0 may cause you to miss other changes
> which actually enable those patches to work.
> 
> HTH,
> --Gabriel

Those commits are already included into 2.1.0 release tag. I tested
almost any commit refs from tag v2.1.0-rc3 to v2.1.0. Things get broken
with the commits above with or without following commits.

I'll wait for the next 2.1.x release on git.qemu.org to test again. I
actually prefer not to use master to build packages for my bleeding-edge
Ubuntu-based distro.

Thanks!