From 8029a5cc0ac42159d8b15eb17b9fae32fdfe41e1 Mon Sep 17 00:00:00 2001
From: Eric Niebler <eniebler@nvidia.com>
Date: Mon, 30 Dec 2024 18:10:53 -0800
Subject: [PATCH] try to fix TSAN error about memory ordering

---
 include/stdexec/__detail/__shared.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/stdexec/__detail/__shared.hpp b/include/stdexec/__detail/__shared.hpp
index 74f453c8f..320c4e37c 100644
--- a/include/stdexec/__detail/__shared.hpp
+++ b/include/stdexec/__detail/__shared.hpp
@@ -268,7 +268,7 @@ namespace stdexec {
       }
 
       void __detach() noexcept {
-        if (__ref_count_.load(std::memory_order_acq_rel) < 4ul) {
+        if (__ref_count_.load() < 4ul) {
           // We are the final "consumer", and we are about to release our reference
           // to the shared state. Ask the operation to stop early.
           __stop_source_.request_stop();