Tomas Hruby 0a55e63413 SMP - fixed IPI livelock ...

- two CPUs can issue IPI to each other now without any hazzard

- we must be able to handle synchronous scheduling IPIs from
  other CPUs when we are waiting for attention from another one.
  Otherwise we might livelock.

- necessary barriers to prevent reordering

2012-01-13 11:30:00 +00:00

..

i386

SMP - fixed IPI livelock

2012-01-13 11:30:00 +00:00