From c4841ca6e09f161a015419dd2e3c7d86d0f9520a Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Sat, 13 Apr 2019 14:26:01 -0400
Subject: [PATCH] fix #31702, thread sitting in event loop outside thread
 region (#31709)

---
 src/threading.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/threading.c b/src/threading.c
index d17da19d96007..936994424ad87 100644
--- a/src/threading.c
+++ b/src/threading.c
@@ -525,6 +525,8 @@ JL_DLLEXPORT void jl_threading_run(jl_value_t *func)
         jl_apply(args, 2);
     }
     _threadedregion -= 1;
+    // make sure no threads are sitting in the event loop
+    jl_wake_libuv();
     JL_GC_POP();
     jl_gc_unsafe_leave(ptls, gc_state);
 }