[Bug 1212] timeslice not working after task mode change

[rtems-bugs at rtems.org]

http://www.rtems.org/bugzilla/show_bug.cgi?id=1212





------- Comment #2 from xudong.guan at criticalsoftware.com  2007-01-12 10:01 -------
Forget to mention that the above source code has to be compiled without any
kind of optimization to work correctly (i.e. gcc -O0). Some optimizations, like
sparc-gcc -O2, will assign a register to the variable "turn", which prevent the
thread from re-read the possibly changed "turn" variable from memory.


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