That's a really good question in windows there is no concept of  RB each 
program is a task thread 


Seems like openmvs unix creates a new Address space what are all those Bpxas 
jobs running 



Joe Reichman
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On Dec 29, 2016, at 8:06 AM, Peter Relson <[email protected]> wrote:

>> :>>can there be multiple SRB's executing
>> :>>the same piece code  in the same address space
>> ...
>> SRBs go to addresses and they do not care about the attributes of the 
> code.
>> CALL doesn't care either.
> 
> Binyamin is of course correct. It is entirely up to the coder to make sure 
> that the storage containing the code to be executed by the work unit does 
> not vanish from underneath them (as could happen if it was placed in 
> task-owned storage and that task was able to terminate before the SRB 
> terminated). And it is up to the coder to make sure that the code can 
> handle it.
> 
> Peter Relson
> z/OS Core Technology Design
> 
> 
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