[jdk20] RFR: 8298377: JfrVframeStream causes deadlocks in ZGC

8298377: JfrVframeStream causes deadlocks in ZGC ------------- Commit messages: - Backport 453dbd12ee42731d7ebfd1a856338099429277c8 Changes: https://git.openjdk.org/jdk20/pull/120/files Webrev: https://webrevs.openjdk.org/?repo=jdk20&pr=120&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8298377 Stats: 24 lines in 2 files changed: 23 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk20/pull/120.diff Fetch: git fetch https://git.openjdk.org/jdk20 pull/120/head:pull/120 PR: https://git.openjdk.org/jdk20/pull/120