acpi_ec0 error while trying to boot up minnowboard max

[hiren panchasara]

Trying to netboot minnowboard max
http://wiki.minnowboard.org/MinnowBoard_MAX with nfs mounted root but it
failed at:

acpi_ec0: <Embedded Controller: GPE 0x18> port 0x62,0x66 on acpi0
acpi_ec0: GPE query failed: AE_NO_HARDWARE_RESPONSE
ACPI Exception: AE_NO_HARDWARE_RESPONSE, Returned by Handler for
[EmbeddedControl] (20150818/evregion-312)
ACPI Error: Method parse/execution failed [\_SB.PCI0.LPCB.H_EC._REG]
(Node 0xfffff80003a52d80), AE_NO_HARDWARE_RESPONSE
(20150818/psparse-558)
acpi_ec0: can't install address space handler for \_SB_.PCI0.LPCB.H_EC -
AE_NO_HARDWARE_RESPONSE

Longer version:
http://dpaste.com/2Q4ESES

FWIW, I am trying to boot -head snapshot from 01/21/2016.

Cheers,
Hiren
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