[jdk20] RFR: 8298400: Virtual thread instability when stack overflows [v3]

[Ron Pressler]

> The stack overflow is detected in the native code and a pending exception is set, but it is not thrown.
> 
> Additionally, the stack overflow detection is changed use StackOverflow::shadow_zone_safe_limit rather than StackOverflow::stack_overflow_limit.

Ron Pressler has updated the pull request incrementally with one additional commit since the last revision:

  Add ppc

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

Changes:
  - all: https://git.openjdk.org/jdk20/pull/101/files
  - new: https://git.openjdk.org/jdk20/pull/101/files/cd05ad8c..f34966bd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk20&pr=101&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk20&pr=101&range=01-02

  Stats: 13 lines in 1 file changed: 13 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk20/pull/101.diff
  Fetch: git fetch https://git.openjdk.org/jdk20 pull/101/head:pull/101

PR: https://git.openjdk.org/jdk20/pull/101