RFR (S) 8231244: Shenandoah: all-roots heap walking misses some weak roots
Zhengyu Gu
zgu at redhat.com
Thu Sep 19 15:04:06 UTC 2019
Looks good.
-Zhengyu
On 9/19/19 10:55 AM, Aleksey Shipilev wrote:
> Bug:
> https://bugs.openjdk.java.net/browse/JDK-8231244
>
> Fix:
> https://cr.openjdk.java.net/~shade/8231244/webrev.02/
>
> This reliably reproduces with vmTestbase_nsk_jvmti. We miss some weak roots, apparently. New code
> tries to match how ShenandoahRoot{Evacuator,Adjuster}::roots_do handle it.
>
> Testing: hotspot_gc_shenandoah, vmTestbase_nsk_jvmti
>
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