RFR: 8293563: [macos-aarch64] SA core file tests failing with sun.jvm.hotspot.oops.UnknownOopException

Tue Sep 27 21:46:22 UTC 2022

JDK-8293563 is due to a macOS bug (or maybe a feature) that is resulting in the java heap not always being present in the core file. Running with `-XX:+AlwaysPreTouch` seems to work around this problem. This issue is only on macosx-aarch64, not x64.

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Commit messages:
 - Pretouch heap memory so it appears in the core dump.

Changes: https://git.openjdk.org/jdk/pull/10458/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10458&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8293563
  Stats: 28 lines in 7 files changed: 13 ins; 0 del; 15 mod
  Patch: https://git.openjdk.org/jdk/pull/10458.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10458/head:pull/10458

PR: https://git.openjdk.org/jdk/pull/10458