[13] RFR(xs) 8226462: [TESTBUG] runtime/appcds/sharedStrings/SysDictCrash.java failed with Cannot dump shared archive

[David Holmes]

Hi Calvin,

On 21/06/2019 3:16 pm, Calvin Cheung wrote:
> bug: https://bugs.openjdk.java.net/browse/JDK-8226462
> 
> webrev: http://cr.openjdk.java.net/~ccheung/8226462/webrev.00/
> 
> On a test host with large amount of RAM, the UseCompressedOops and the 
> UseCompressedClassPointers flags would be disabled ergonomically by the 
> VM with the MaxRAMPercentage set to 12.5. To void the test failure, the 
> test has been changed to check the given MaxRAMPercentage and uses it if 
> the setting is <= 12.5.

But if it fails on 12.5 presently then you would need to be < 12.5 surely?

And it's not the 12.5 per-se that is the issue IIUC but the amount of 
memory that 12.5% of RAM represents. If there is more memory you would 
need to use a smaller % to ensure it works - no?

Thanks,
David
-----

> Ran the test 20 times on the linux test host where the failure was 
> reproduced.
> 
> thanks,
> Calvin