A thread without GC

[John Colvin]

I would post this in d.learn, but I suspect there isn't an easy 
answer so it would be good to have some serious discussion here.

Is there any way to create a thread that is totally free from the 
garbage collector?

I.e.
Nothing in that thread will ever be scanned by the GC.
Therefore, when the GC "stops the world", that thread can just 
keep on going.

Obviously one could create a separate process, but it would be 
nice to have it encapsulated within a single process for optimum 
speed of communication and not having to mess around with pipes.

P.S. Yes I realise how careful one would have to be when using 
this.