Re: Detangle lwkt_switch() and the idle thread and consolidate sleep variables

["Simon 'corecode' Schubert" <corecode@xxxxxxxxxxxx>]

Matthew Dillon wrote:
>     I dont know the semantics of MONITOR/MWAIT.  What happens if you issue
>     a MONITOR and the cpu takes an interrupt and issues another MONITOR/MWAIT
>     before returning to your MWAIT?  That will govern whether/how we use the
>     feature because it will determine whether we need to disable interrupts
>     while doing the monitor/mwait sequence or not.

As Joerg already wrote, there are many conditions that will trigger the 
monitor.  Interrupts etc are one of these, so we can execute with 
interrupts enabled.  I was just curious how we could wait only on a 
single variable, even if we are waiting for multiple tokens and the mplock.

cheers
  simon