RFR: 8342854: [JVMCI] Block secondary thread reporting a JVMCI fatal error

[Tom Rodriguez]

On Tue, 22 Oct 2024 19:27:09 GMT, Doug Simon <dnsimon at openjdk.org> wrote:

> A fatal crash on a second thread causes the thread to [sleep infinitely](https://github.com/openjdk/jdk/blob/d6eddcdaf92f2352266ba519608879141997cd63/src/hotspot/share/utilities/vmError.cpp#L1709-L1718) while error reporting continues on the first crashing thread. The same should be done for reporting fatal crashes in libjvmci to avoid interleaving reports. This PR implements this change.

Looks good.

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

Marked as reviewed by never (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21646#pullrequestreview-2390006089