On Mon, 17 May 2021 09:32:23 GMT, Richard Reingruber <rr...@openjdk.org> wrote:
>> Robbin Ehn has updated the pull request incrementally with one additional >> commit since the last revision: >> >> Fixes for Dan > > src/hotspot/share/prims/jvmtiRawMonitor.cpp line 395: > >> 393: ThreadBlockInVMPreprocess<ExitOnSuspend> tbivmp(jt, eos); >> 394: simple_enter(jt); >> 395: _recursions = save; > > I think you should restore `_recursions` only when finally leaving the loop > because if you do it here and exit the monitor again because of a suspend > then another thread could hit the `guarantee(_recursions == 0, "invariant")` > at L349. This is a preexisting issue but since you're modifying this I reckon > it makes sense to correct it. Fixed ------------- PR: https://git.openjdk.java.net/jdk/pull/3875