[jdk21u-dev] RFR: 8324580: SIGFPE on THP initialization on kernels < 4.10 [v2]

[luwang1103]

> hi  ,
> 
> This pull request contains a backport of commit [a231706a](https://git.openjdk.org/jdk/commit/a231706a06a86abb16d0040e8ca1b76a9741a0b2) from the [master](https://github.com/openjdk/jdk) repository.
> 
> The commit being backported was authored by Zdenek Zambersky on 15 Feb 2024.
> 
> Thanks！

luwang1103 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 two additional commits since the last revision:

 - Merge branch 'openjdk:master' into fault-thp
 - Backport a231706a06a86abb16d0040e8ca1b76a9741a0b2

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

Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/840/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/840/files/2b3b3746..42f8c79f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=840&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=840&range=00-01

  Stats: 87 lines in 3 files changed: 82 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/840.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/840/head:pull/840

PR: https://git.openjdk.org/jdk21u-dev/pull/840