amd64/174409: stopping during resume caused by io_apic.c change(r243764)

[avg at FreeBSD.org]

Synopsis: stopping during resume caused by io_apic.c change(r243764)

Responsible-Changed-From-To: freebsd-amd64->avg
Responsible-Changed-By: avg
Responsible-Changed-When: Mon Jan 21 15:44:15 UTC 2013
Responsible-Changed-Why: 
The problem is triggered by my change and I'd like to get to the bottom
of it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=174409