[jdk8u-dev] RFR: 8253435: Cgroup: 'stomping of _mount_path' crash if manually mounted cpusets exist [v5]

[Jonathan Dowland]

> This is a clean backport of 8253435 to jdk8u-dev for cgroups v2 support.

Jonathan Dowland has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 17 commits:

 - Severin's test fixes. Thanks!
 - Replace log_warning with tty->print_cr
 - 8253435: Cgroup: 'stomping of _mount_path' crash if manually mounted cpusets exist
   
   Backport-of: 0054c15f60cce6470be05d29bfacbdb74cfb7bc9
 - 8252359: HotSpot Not Identifying it is Running in a Container
   
   Backport-of: 76f0588aaf265439a589cceb924e3ea9d3fda8f1
 - replace log_trace with tty->print_cr
 - 8278951: containers/cgroup/PlainRead.java fails on Ubuntu 21.10
   
   Reviewed-by: sgehwolf
   Backport-of: 35172cdaf38d83cd3ed57a5436bf985dde2d802b
 - PlainRead: ProcessBuilder: jdk8u-appropriate command line flags
 - adjust jtreg settings and imports for 8u
 - 8197408: Bad pointer comparison and small cleanup in os_linux.cpp
   
   Reviewed-by: bobv, stuefe
 - Test fix by Severin. Thanks!
 - ... and 7 more: https://git.openjdk.org/jdk8u-dev/compare/e4a44241...00dc64aa

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

Changes: https://git.openjdk.org/jdk8u-dev/pull/158/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=158&range=04
  Stats: 688 lines in 18 files changed: 518 ins; 53 del; 117 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/158.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev pull/158/head:pull/158

PR: https://git.openjdk.org/jdk8u-dev/pull/158