JDK-8273917 : Remove 'leaf' ranking for Mutex
  • Type: Sub-task
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 18
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2021-09-16
  • Updated: 2021-11-18
  • Resolved: 2021-10-06
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JDK 18
18 b18Fixed
Related Reports
Relates :  
JDK-8277213 - CompileTask_lock is acquired out of order with MethodCompileQueue_lock
Relates :  
JDK-8274925 - Shenandoah: shenandoah/TestAllocHumongousFragment.java test failed on lock rank check
Description
The 'leaf' ranked locks (after the two previous subtasks) aren't really leaf locks, as they can take out lower ranked locks that don't check for safepoint.

Fold these locks into nonleaf rankings.
Comments
Changeset: b8af6a9b Author: Coleen Phillimore <coleenp@openjdk.org> Date: 2021-10-06 12:14:33 +0000 URL: https://git.openjdk.java.net/jdk/commit/b8af6a9bfb28aaf0fea0cfdaba13236dc8cbaa3a
06-10-2021