Operating Systems

Please answer with full steps written and explaination:

Broken lock:

void SpinLock(volatile unsigned int *lock) {

while (*lock == 1) // TEST (lock) ; // spin

*lock = 1; // SET (lock)

}

void SpinUnlock(volatile unsigned int *lock) {

*lock = 0;

}

Fill in the rest of the timeline with an example showing the lock is broken:

Thread 1 Thread 2

--------------------------------------------------

while (*lock == 1)