RFR: 8271931: Make AbortVMOnVMOperationTimeout more resilient to OS scheduling

[David Holmes]

On Thu, 5 Aug 2021 09:47:18 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Perform VM-op timeout also on the VM thread. If a VM-op is stuck, the existing watcher-thread based machinery will kick in and detect it.
> 
> Test: tier1

Hi Albert,

The changes look good to me.

Thanks,
David

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Marked as reviewed by dholmes (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/5016