RFR: 8195600: [Graal] jdi tests timeouts with Graal because debuggee vm is not resumed

[Chris Plummer]

Hi Daniil,

My only objection is at some point it seems we need to be able to run 
these tests with graal (and other tests that have been disabled due to 
graal) because graal might be the only compiler, and we'll lose test 
coverage without these tests. Currently we have 260 jtreg tests disabled 
due to graal. I'm not sure to what extent they are waiting on graal 
fixes or otherwise have a bug filed to eventually fix them. Would be 
nice if we had a process in place to make sure these issues are 
eventually addressed. That fact that tests that exhaust memory in 
general seem to be incompatible with graal would to be the bigger issue 
that needs to be addressed.

thanks,

Chris

On 8/7/19 3:38 PM, Daniil Titov wrote:
> Please review the change that fixes the failing tests when running with Graal. The issue originally
> included several vmTestbase/nsk/jdi tests but only 2 of them still fail:
> - vmTestbase/nsk/jdi/VirtualMachine/instanceCounts/instancecounts003/instancecounts003.java
> - vmTestbase/nsk/jdi/ObjectReference/referringObjects/referringObjects002/referringObjects002.java
>
> The problem with these two tests is that they consume all memory to force the class unloading that
> results in the exception during JVMCI compiler initialization and the test failure.
>   
> The fix filters these tests out to not run with Graal compiler.
>
> Webrev: http://cr.openjdk.java.net/~dtitov/8195600/webrev.01/
> Bug: https://bugs.openjdk.java.net/browse/JDK-8195600
>
> Thanks,
> Daniil
>
>