JDK-8274516 : [REDO] JDK-8271880: Tighten condition for excluding regions from collecting cards with cross-references
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 18
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2021-09-29
  • Updated: 2022-12-12
  • Resolved: 2021-10-13
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JDK 18
18 b19Fixed
Related Reports
Relates :  
JDK-8275277 - assert(dest_attr.is_in_cset() == (obj->forwardee() == obj)) failed: Only evac-failed objects must be in the collection set here but is not
Relates :  
JDK-8271880 - Tighten condition for excluding regions from collecting cards with cross-references
Relates :  
JDK-8274340 - [BACKOUT] JDK-8271880: Tighten condition for excluding regions from collecting cards with cross-references
Relates :  
JDK-8273304 - SEGV in trim_queue_to_threshold
Description
Redo JDK-8271880: Tighten condition for excluding regions from collecting cards with cross-references after fixing the issues.
Comments
DiscoveredListIterator::remove() is missing some barriers (even before the JDK-8271880 change) and did raw stores. (Amendment: this is not the issue here, as explained in the comment in DiscoveredListIterator::remove added in this change.)
12-12-2022
Changeset: c3b75c6c Author: Thomas Schatzl <tschatzl@openjdk.org> Date: 2021-10-13 08:10:55 +0000 URL: https://git.openjdk.java.net/jdk/commit/c3b75c6cdf03ffa3c887bf3db29e17668b228f79
13-10-2021