Ryan Macnak
e4e8360eba
Running mutator holds safepoint operation scope starting old space GC waiting for old space tasks to reach 0 Concurrent marker holds old space tasks > 0 waiting for isolates_list_ lock to interrupt for finalization Exiting mutator holds isolates_list_ lock_ to unregister isolate waiting for safepoint to end TransitionVMToBlocked Reorder isolate [un]registeration to not need safepoint transition to acquire the isolates_list_ lock. TEST=ci Bug: https://github.com/dart-lang/sdk/issues/59574 Change-Id: Ia98fabd654c880b253893a0598d2e26ed77f52da Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/397660 Reviewed-by: Alexander Aprelev <aam@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>