JDK-8222843 : Print Shenandoah cset map addresses in hs_err
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 8-shenandoah,11-shenandoah,12,13
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2019-04-23
  • Updated: 2019-07-31
  • Resolved: 2019-04-24
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Unresolved : Release in which this issue/RFE will be addressed.
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JDK 12 JDK 13
12.0.2Fixed 13 b18Fixed
Related Reports
Relates :  
JDK-8222838 - Shenandoah: SEGV on accessing cset bitmap for NULL ptr
Description
This would help to diagnose issues like JDK-8222838.

After the patch:

Heap:
Shenandoah Heap
...
Collection set:
 - map (vanilla): 0x00007fc0cc09cd40
 - map (biased):  0x00007fc0bc11c040
Comments
Fix Request (12u) Backporting this fix improves Shenandoah debuggability, and provides the base for JDK-8222828 backport. Patch applies cleanly to 12u and passes hotspot_gc_shenandoah.
25-04-2019
RFR: https://mail.openjdk.java.net/pipermail/shenandoah-dev/2019-April/009397.html
23-04-2019