RFR: 8324781: runtime/Thread/TestAlwaysPreTouchStacks.java failed with Expected a higher ratio between stack committed and reserved [v2]

[Liming Liu]

> The testcase failed on Oracle CI since JDK-8315923. The root cause is that Oracle CI runs Linux-5.4.17-UEK where the value of MADV_POPULATE_WRITE (23) is used as MADV_DONTEXEC which is not supported by upstream. This PR solves the testcase failure by checking the support of (MADV_POPULATE_WRITE_value + 1) for UEK releases.

Liming Liu has updated the pull request incrementally with one additional commit since the last revision:

  Remove 8325218 from the problem list

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Changes:
  - all: https://git.openjdk.org/jdk/pull/18417/files
  - new: https://git.openjdk.org/jdk/pull/18417/files/192855f8..005259f5

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18417&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18417&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/18417.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18417/head:pull/18417

PR: https://git.openjdk.org/jdk/pull/18417