RFR 8231250: Shenandoah: Traversal GC should keep alive weak load from heap
zgu at redhat.com
Mon Sep 23 18:28:43 UTC 2019
On 9/23/19 12:37 PM, Roman Kennke wrote:
Thanks for reviewing.
> We need to have a close look at the interaction between traversal and
> native barriers/conc roots soon.
Concurrent roots is not enabled for traversal. I think we have problem
of hitting barriers on GC paths, which trigger side-effects of LRB.
>> Was: 8231250: Shenandoah: Shenandoah assert_correct failed; Object
>> klass pointer
>> SAP reported that this patch did not fix the assert failure in
>> original bug report. But the fix is legit, as JDK-8227635 did change
>> the behavior of traversal GC, resulting it may drop keepalive for heap
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8231250
>> Webrev: http://cr.openjdk.java.net/~zgu/JDK-8231250/webrev.00/
>> hotspot_gc_shenandoah (fastdebug and release) on Linux x86_64
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