linux.conf.au, January 2003
      PRINCIPLES: Race Conditions

Race conditions caused by more than one CPU (SMP):

  	CPU 1			CPU 2
  	...
  	lwz 9,0(3)		...
  	addi 9,9,1		lwz 9,0(3)
  	stw 9,0(3)	 	addi 9,9,1
  	...		 	stw 9,0(3)
 				...