PERFORCE change 117140 for review

[Robert Watson]

On Mon, 2 Apr 2007, John Baldwin wrote:

>> @@ -40,6 +40,7 @@
>>  	int		pc_inside_intr;					\
>>  	struct pmap	*pc_curpmap;		/* current pmap */	\
>>  	struct thread   *pc_fputhread;          /* current fpu user */  \
>> +	int		pc_bsp:1;					\
>
> FYI, other places in MI code assume that CPU 0 (pc_cpuid) is the BSP.

I realized the hard way, the other day, that the boot thread itself can 
migrate to another CPU during sysinit processing, once SMP is kicked off.  No 
more KASSERT(curcpu == 0, ()) for me. :-)

Robert N M Watson
Computer Laboratory
University of Cambridge