RFR: 8214484: ZGC: Exclude SA tests ClhsdbJhisto and TestHeapDumpFor*

Roman Kennke rkennke at redhat.com
Thu Nov 29 19:31:34 UTC 2018

Hi Chris, Per,

Shenandoah has the same problem, for the same reasons. And I'm not
convinced that G1 is safe either, at least with

In my opinion, this whole code section needs to be rewritten to use
something like CollectedHeap::object_iterate() (which is used by other
similar external code like JVMTI for heapdumping/walking). Simply
assuming a certain object layout is not very sustainable IMO.


> Hi Per,
> I think there may have been some discussion about this before. Are there
> plans to eventually get SA heap walking support for ZGC, and is the list
> of disabled tests being maintained somewhere?
> thanks,
> Chris
> On 11/29/18 7:07 AM, Per Liden wrote:
>> There's no support for SA heap walking when using ZGC. Hence the tests
>> for this should not execute when ZGC is enabled.
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8214484
>> Webrev: http://cr.openjdk.java.net/~pliden/8214484/webrev.0
>> /Per

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: OpenPGP digital signature
URL: <http://mail.openjdk.java.net/pipermail/hotspot-gc-dev/attachments/20181129/5ab9f402/signature-0001.asc>

More information about the hotspot-gc-dev mailing list