This no longer applies, it is probably a leftover from the days when we had a global runqueue. Discussed with blambert.
ok ? Index: sched_bsd.c =================================================================== RCS file: /cvs/src/sys/kern/sched_bsd.c,v retrieving revision 1.29 diff -d -u -p -r1.29 sched_bsd.c --- sched_bsd.c 23 Mar 2012 15:51:26 -0000 1.29 +++ sched_bsd.c 9 Jul 2012 08:45:32 -0000 @@ -464,16 +464,7 @@ resched_proc(struct proc *p, u_char pri) /* * XXXSMP - * Since p->p_cpu persists across a context switch, - * this gives us *very weak* processor affinity, in - * that we notify the CPU on which the process last - * ran that it should try to switch. - * - * This does not guarantee that the process will run on - * that processor next, because another processor might - * grab it the next time it performs a context switch. - * - * This also does not handle the case where its last + * This does not handle the case where its last * CPU is running a higher-priority process, but every * other CPU is running a lower-priority process. There * are ways to handle this situation, but they're not