From dda793ffa1ffbc3210f70276540903a4caa3281b Mon Sep 17 00:00:00 2001
From: AJ Heller <hork@google.com>
Date: Fri, 19 Aug 2022 11:35:08 -0700
Subject: [PATCH] Fix forkable repeated registration (#30642)

This fixes a bug that could occur on repeated grpc initialization (after a complete shutdown)

Fixes #30640
---
 src/core/lib/event_engine/forkable.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/core/lib/event_engine/forkable.cc b/src/core/lib/event_engine/forkable.cc
index 8b0aa533081..12089c55f29 100644
--- a/src/core/lib/event_engine/forkable.cc
+++ b/src/core/lib/event_engine/forkable.cc
@@ -41,8 +41,9 @@ Forkable::~Forkable() { StopManagingForkable(this); }
 
 void RegisterForkHandlers() {
   grpc_core::MutexLock lock(g_mu.get());
-  GPR_ASSERT(!absl::exchange(g_registered, true));
-  pthread_atfork(PrepareFork, PostforkParent, PostforkChild);
+  if (!absl::exchange(g_registered, true)) {
+    pthread_atfork(PrepareFork, PostforkParent, PostforkChild);
+  }
 };
 
 void PrepareFork() {