minidump: a hack to prevent vm_page_dump bitmap change during dumping

[Matthew Jacob]

  On 9/3/2010 9:17 AM, Andriy Gapon wrote:
> on 03/09/2010 19:10 Matthew Jacob said the following:
>>   You can do it this way, but IMO, the best thing to do is to when you're panicing
>> stop all other CPUs.
> Entirely agree, that's the way it should be handled.
> Unfortunately, all I could come up with was the patch that I posted.
>
Ah.

I have some stuff for stopping other CPUs, but haven't had time to clean 
them up from the 7.2 implementation for head.