[issue1846] page fault in AcpiExReleaseMutex

["Edward O'Callaghan \(via DragonFly issue tracker\)" <sinknull@xxxxxxxxxxxxxxxxxxxxx>]

New submission from Edward O'Callaghan <eocallaghan@auroraux.org>:

One can course DF to panic if one presses a function key to turn on wifi during
early boot, putting debug.acpi.disabled="ec" in /boot/loader.conf stops the panic.

http://www.freebsd.org/cgi/query-pr.cgi?pr=140979

Apparently this is fixed in the upstream ACPICA, so we just need to resync

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messages: 8955
nosy: eocallaghan
priority: urgent
status: unread
title: page fault in AcpiExReleaseMutex

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DragonFly issue tracker <bugs@lists.dragonflybsd.org>
<http://bugs.dragonflybsd.org/issue1846>
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