torvalds/linux — pull request #66 by jmickeyd (2014-01-03 13:50:06+00:00)
Title: Support MONITOR and MWAIT as no-op.

MONITOR and MWAIT which are used to enter low power cpu wait until a memory address is accessed are by definition allowed to wake early, and thus we can replace them with a no-op to safely (although by burning up cpu).