A samll set of timer related fixes: - Plug a race between rearm and process tick in the posix CPU timers code - Make the optimization to avoid recalculation of the next timer interrupt work correctly when there are no timers pending.
A samll set of timer related fixes: - Plug a race between rearm and process tick in the posix CPU timers code - Make the optimization to avoid recalculation of the next timer interrupt work correctly when there are no timers pending.