JDK-7004681 : G1: Extend marking verification to marking phase of Full GCs
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 8-pool
  • Priority: P4
  • Status: Closed
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2010-12-04
  • Updated: 2011-11-25
  • Resolved: 2011-09-30
The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

To download the current JDK release, click here.
JDK 7 JDK 8 Other
7u2Fixed 8Fixed hs22Fixed
Description
As part of the investigation into 6994628, verifying that marking during a full GC did not miss a live object was invaluable.
Comments
EVALUATION http://hg.openjdk.java.net/hsx/hotspot-rt/hotspot/rev/6747fd0512e0
08-07-2011
EVALUATION http://hg.openjdk.java.net/hsx/hotspot-comp/hotspot/rev/6747fd0512e0
08-07-2011
EVALUATION http://hg.openjdk.java.net/hsx/hotspot-gc/hotspot/rev/6747fd0512e0
14-06-2011
SUGGESTED FIX The verification routines in G1CollectedHeap take a boolean parameter (use_prev_marking) - if this were changed to an integer then we could have more than 2 values , e.g. use-prev-marking, use-next-marking, and use-mark-word.
02-05-2011
EVALUATION Productizing instrumentation/debugging code used during investigation of another bug.
02-05-2011