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Date: Sun, 19 Dec 2010 08:05:15 +0100
From: Joerg Sonnenberger <joerg@britannica.bec.de>
To: freebsd-hackers@freebsd.org
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Subject: Re: MONITOR/MWAIT question
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On Sat, Dec 18, 2010 at 02:24:34PM -0800, Matthew Dillon wrote:
>     Does anyone know if an IRET cancels/triggers a MONITOR event?

AMD's Architecture Programmer's Manual explicitly contains:

Events that cause an exit from the monitor event pending state include:
...
- Any far control transfer that occurs between the MONITOR and the
MWAIT.

Joerg