I was wondering, when the os_wait(K_SIG,0,0) function is called, and no tasks are ready, can an inturrupt still occur? i am using an interrupt driven smbus routiene, the program locks whenever i let it run free. stepping through in the the debugger a signal will be sent by the isr before os_wait is reached, but when i set a breakpoint on the same send signal line and just let the program run, it never makes it that far.