https://bugzilla.kernel.org/show_bug.cgi?id=13170

--- Comment #73 from morten vermund (mortenvermund@gmail.com) --- (In reply to Alex Murray from comment #40)

It may not be relevant, but apparently the same non-bootable issue has been seen on the MacBook Air 2,1 - which was solved (ie. without resorting to maxcpus=1 or noacpi) with the following options:

acpi=noirq pnpacpi=off

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