[parisc-linux] Re:[parisc-linux-cvs] linux-2.6 kyle

Grant Grundler grundler at parisc-linux.org
Sun Aug 20 20:47:12 MDT 2006


On Thu, Aug 17, 2006 at 10:02:51AM +0200, Joel Soete wrote:
> One more question (according to assembly stuff)
> what happen when the two cpu excute at the same time the same:
> 
>  ldcw,co 0(%r3),%r28

Simply answer: One of the CPUs loses bus arbitration and will stall
until it can get access to the "central bus" (e.g. runway or Mckinley).
The CPUs no longer execute insn "at the same time" after that.

BTW, I like the URL Michael Zick posted in reply.


hth,
grant




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