[jdk21u] RFR: 8314139: TEST_BUG: runtime/os/THPsInThreadStackPreventionTest.java could fail on machine with large number of cores

[Thomas Stuefe]

Clean backport to fix an test issue on many-core machines post JDK-8312182

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Commit messages:
 - Merge branch 'openjdk:master' into tstuefe-backport-73325028
 - Merge branch 'openjdk:master' into tstuefe-backport-73325028
 - Backport 733250288325bc663afc0376342d4c5a7a471cbd

Changes: https://git.openjdk.org/jdk21u/pull/114/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u&pr=114&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8314139
  Stats: 3 lines in 1 file changed: 3 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u/pull/114.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/114/head:pull/114

PR: https://git.openjdk.org/jdk21u/pull/114