CSR Review: 8189423: Add option to disable stack overflow checking in primordial thread for use with JNI_CreateJavaJVM

[Robbin Ehn]

> My understanding from prior discussion (ie when we fixed the 2MB stack limit) is that it doesn't work for them to use a new thread for the JVM. The change to support 
> anything but unlimited stack size also helped (and the 8M limit when 'unlimited' is tolerable) but really they just want a simple way to say "please don't bother with stack 
> guards, I can deal with that myself".

Is there a problem I'm not seeing to extends this to all attaching threads?
E.g. -XX:+DisableAttachingThreadGuardPages (more useful option I would say)

Thanks, Robbin

> 
> This is intended to be a very simple, very specific proposal. I suppose it could be flagged as "experimental" if we wanted the flexibility to do something different later. 
> But I don't see that being on the cards.
> 
> Cheers,
> David
> 
>>
>> Thanks Robbin
>>
>>>
>>> Kind Regards, Thomas
>>>
>>>
>>>
>>> On Tue, Oct 17, 2017 at 9:22 AM, David Holmes <david.holmes at oracle.com>
>>> wrote:
>>>
>>>> CSR: https://bugs.openjdk.java.net/browse/JDK-8189423
>>>>
>>>> Bug: https://bugs.openjdk.java.net/browse/JDK-8189170
>>>>
>>>> Could I please have a reviewer for this CSR request so I can fast-track it.
>>>>
>>>> Comments on the proposal are of course welcome.
>>>>
>>>> Thanks,
>>>> David
>>>>