[jdk21u] RFR: 8312525: New test runtime/os/TestTrimNative.java#trimNative is failing: did not see the expected RSS reduction [v2]

[Aleksey Shipilev]

> Semi-clean follow-up backport to relax the test.
> 
> There are no `ProblemList` additions in 21u, so this changeset does not have the relevant hunk.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug, affected test

Aleksey Shipilev has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains one additional commit since the last revision:

  Backport ad34be1f329edc8e7155983835cc70d733c014b8

-------------

Changes:
  - all: https://git.openjdk.org/jdk21u/pull/26/files
  - new: https://git.openjdk.org/jdk21u/pull/26/files/9009d8e6..c5794abb

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u&pr=26&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk21u&pr=26&range=00-01

  Stats: 46817 lines in 329 files changed: 4409 ins; 40908 del; 1500 mod
  Patch: https://git.openjdk.org/jdk21u/pull/26.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/26/head:pull/26

PR: https://git.openjdk.org/jdk21u/pull/26