[aarch64-port-dev ] 8233839: aarch64: missing memory barrier in NewObjectArrayStub and NewTypeArrayStub

[Andrew Haley]

On 11/8/19 9:04 AM, Andrew Dinn wrote:
> On 08/11/2019 08:30, Yangfei (Felix) wrote:
>> I witnessed random fail of one jcstress test on my 128-core aarch64 server: "org.openjdk.jcstress.tests.defaultValues.arrays.small.plain.StringTest"
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8233839
>>   JDK builds OK and passed tier1 test.
> Very nice detective work finding that one!
> 
> The jdk14 patch looks good. Also the same patch for jdk11 and the
> variant for jdk8 are good.

Looks like ARM32 does not have the same bug. PowerPC doesn't even
attempt a fast path in this case.

-- 
Andrew Haley  (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
https://keybase.io/andrewhaley
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