JDK-8370417 : Parallel: TestAlwaysPreTouchBehavior.java fails with NUMA
  • Type: Bug
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 25
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2025-10-22
  • Updated: 2025-10-27
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JDK 26
26Unresolved
Related Reports
Causes :  
JDK-8334513 - New test gc/TestAlwaysPreTouchBehavior.java is failing on MacOS aarch64
Relates :  
JDK-6783381 - NUMA allocator: don't pretouch eden space with UseNUMA
Description
Can trace back the failure to JDK-8334513, which unproblemlisted this test.

It's likely the pretouching logic in eden (with NUMA) has been removed since JDK-6783381, this failing test exposes it.
Comments
A pull request was submitted for review. Branch: master URL: https://git.openjdk.org/jdk/pull/28000 Date: 2025-10-27 14:52:52 +0000
27-10-2025