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2006-07-12i think my cmpxchg use was wrong in acquirertm1-1/+1
nesting cli/sti: release shouldn't always enable interrupts separate setup of lapic from starting of other cpus, so cpu() works earlier flag to disable locking in console output make locks work even when curproc==0 (still crashes in clock interrupt)
2006-07-12cvs add spinlock.hrtm1-0/+6
fix race in schedule()