> The change fixes regression from JDK-8299414. > There is a deadlock between JvmtiVTMSTransitionDisabler and EscapeBarrier > when virtual threads are in mount/unmount transition: > EscapeBarrier requests deoptimization which requires thread suspension. > JvmtiVTMSTransitionDisabler ctor waits until all in progress VTMS transitions > complete, but they cannot be completed as thread is suspended. > To avoid the deadlock mount/unmount transitions should be completed before > EscapeBarrier stuff.
Alex Menkov has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains eight additional commits since the last revision: - Merge branch 'follow_ref_deadlock' of github.com:alexmenkov/jdk into follow_ref_deadlock - Merge branch 'openjdk:master' into follow_ref_deadlock - Merge branch 'follow_ref_deadlock' of github.com:alexmenkov/jdk into follow_ref_deadlock - fix - unproblem-list tests - fix - unproblem-list tests - fix ------------- Changes: - all: https://git.openjdk.org/jdk/pull/14233/files - new: https://git.openjdk.org/jdk/pull/14233/files/b2df4fd6..8c3ed263 Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=14233&range=02 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14233&range=01-02 Stats: 1647 lines in 164 files changed: 729 ins; 474 del; 444 mod Patch: https://git.openjdk.org/jdk/pull/14233.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/14233/head:pull/14233 PR: https://git.openjdk.org/jdk/pull/14233
