JDK-8329748 : Change default value of AssertWXAtThreadSync to true
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 23
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: os_x
  • CPU: aarch64
  • Submitted: 2024-04-05
  • Updated: 2024-05-27
  • Resolved: 2024-05-22
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JDK 23
23 b24Fixed
Related Reports
Relates :  
JDK-8327990 - [macosx-aarch64] Various tests fail with -XX:+AssertWXAtThreadSync
Relates :  
JDK-8307817 - AARCH64: make macOS W^X locking more fine grained
Relates :  
JDK-8328306 - Allow VM to run with X memory execute by default
Description
Activating helped find missing MACOS_AARCH64_ONLY(ThreadWXEnable __wx(WXWrite, thread)); like in JDK-8327036. 

AssertWXAtThreadSync is a develop flag and the check is very cheap. Activate AssertWXAtThreadSync by default and make all tests pass. This should help minimize missing WXWrite
Comments
Changeset: 3d511ff6 Author: Tobias Holenstein <tholenstein@openjdk.org> Date: 2024-05-22 08:50:15 +0000 URL: https://git.openjdk.org/jdk/commit/3d511ff63e59f542ae20c722bfef1c867cd1da0e
22-05-2024
A pull request was submitted for review. URL: https://git.openjdk.org/jdk/pull/19102 Date: 2024-05-06 11:10:08 +0000
06-05-2024
See also comments in JDK-8327990. Not sure why this wasn't enabled then.
08-04-2024