RFR: 8282427: jdk/jfr/jvm/TestWaste.java is failing with "exit code 139"

[SendaoYan]

On Tue, 14 Oct 2025 00:07:44 GMT, Erik Gahlin <egahlin at openjdk.org> wrote:

> Could I get a review for a PR that relaxes an assert? When removing the last parent in a frontier, the queue can fill while processing its children, causing _dfs_fallback_idx to equal _next_frontier_idx.
> 
> Testing: 5000 * test/jdk/jdk/jfr/jvm/TestWaste.java
> 
> Thanks
> Erik

src/hotspot/share/jfr/leakprofiler/chains/bfsClosure.cpp line 192:

> 190:     // fallback onto DFS as part of processing the frontier
> 191:     assert(_dfs_fallback_idx >= _prev_frontier_idx, "invariant");
> 192:     assert(_dfs_fallback_idx =< _next_frontier_idx, "invariant");

Does `=<` should be `<=` ?

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PR Review Comment: https://git.openjdk.org/jdk/pull/27779#discussion_r2427822343