RFR 8251490: [TESTBUG] The Java thread stack size specified is too small for nsk/stress/stack. Specify at least 448k

[Harold Seigel]

Hi Nick,

I think that's a very good idea!

I created JBS bug https://bugs.openjdk.java.net/browse/JDK-8252108. 
Please assign it to yourself if you want to do the fix.

Thanks, Harold

On 8/19/2020 11:08 PM, Nick Gasson wrote:
> Hi Harold,
>
> On 08/19/20 01:19 am, Harold Seigel wrote:
>> Please review this small change to fix five vmTestbase/nsk/stress/stack
>> tests that are failing in tier5 on Linux AArch64.  The change increases
>> the stack size for three of the tests.  Increasing the stack size of the
>> other two tests could result in timeouts on other platforms.  So, those
>> tests were changed to no longer run on AArch64.
>>
>> Open Webrev:
>> http://cr.openjdk.java.net/~hseigel/bug_8251490/webrev/index.html
>>
> Sorry this comment is a bit late, but stack008 and stack0019 are passing
> for me on an AArch64 system with 4k page size (the default for Ubuntu)
> so it seems a shame to disable them unconditionally. I think PPC64 can
> also be configured with 64k pages which would presumably have the same
> problem.
>
> Could we add a new jtreg property vm.pageSize and then make the
> @requires line vm.pageSize == 4096 instead of os.arch != "aarch64"? I'm
> happy to do that myself as this was pushed already.
>
> --
> Thanks,
> Nick