test.test_capi.test_misc.TestPendingCalls.test_pendingcalls_threaded usually (but not always) times out on theAMD64 Windows Server 2022 NoGIL 3.x buildbot, e.g. here:https://buildbot.python.org/all/#/builders/1241/builds/1116/steps/4/logs/stdio

It started 5 days ago, after#114262 (Implement GC for free-threaded builds) and#114479 (Make threading.Lock a real class, not a factory function), and it looks like it got more frequent after#113412 (Use pointer for interp->obmalloc state). (This is just from looking at the buildbot logs, I haven't bisected.)

Linked PRs

• gh-114746: Avoid quadratic behavior in free-threaded GC #114817