RFR: 8295344: Harden runtime/StackGuardPages/TestStackGuardPages.java [v2]

[Robbin Ehn]

On Thu, 9 Feb 2023 13:37:58 GMT, Johan Sjölen <jsjolen at openjdk.org> wrote:

>> There are multiple ways which the stack guard pages tests can be hardened:
>> - Rewritten the Java part of the test using ProcessTools.executeProcess(ProcessBuilder pb) which will make stdout/stderr be consistently logged and debugging much easier.
>> - Split up initial/other thread into 2 tests
>> - Split up Java thread tests and native thread tests into two separate files
>> - Check more error conditions in the C code
>> - Instead of recursing and creating stack frames, just `alloca()` and poke until we hit a `SIGSEGV`.
>> 
>> The goal is that this will help us out with  [JDK-8293452](https://bugs.openjdk.org/browse/JDK-8293452).
>
> Johan Sjölen has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove from ProblemList.txt

Seems ok!

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Marked as reviewed by rehn (Reviewer).

PR: https://git.openjdk.org/jdk/pull/12386