On Fri, 17 Jan 2025 23:12:14 GMT, William Kemper <wkem...@openjdk.org> wrote:

> This occurs when an attempt to produce a heap dump conflicts with a 
> concurrent cycle. The heap dump vm operation attempts to run a cycle directly 
> on the VM thread with no regard for the state of the concurrent collection. 
> Although Shenandoah _is_ technically capable of running an entire _full_ GCs 
> on the vm thread, I would rather not add another dependency on full GCs, nor 
> would I like to cancel an in-progress concurrent GC. Instead, Shenandoah will 
> follow the pattern established ZGC in which the calling thread waits for a 
> concurrent cycle to complete before taking the heap dump.

Thanks for handling this.

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Marked as reviewed by kdnilsen (Author).

PR Review: https://git.openjdk.org/jdk/pull/23186#pullrequestreview-2560162856

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