From 021af01fd24db67c64284bcc066c82d83019da7e Mon Sep 17 00:00:00 2001
From: "wanaifu.kabt" <wanaifu.kqbtebytedance.com>
Date: Wed, 3 Dec 2025 14:58:57 +0800
Subject: [PATCH] add atomic stack push cas head init

---
 kotlin-native/runtime/src/alloc/custom/cpp/AtomicStack.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kotlin-native/runtime/src/alloc/custom/cpp/AtomicStack.hpp b/kotlin-native/runtime/src/alloc/custom/cpp/AtomicStack.hpp
index 4dc3a3f7bdac6..a9755a7687d74 100644
--- a/kotlin-native/runtime/src/alloc/custom/cpp/AtomicStack.hpp
+++ b/kotlin-native/runtime/src/alloc/custom/cpp/AtomicStack.hpp
@@ -47,7 +47,7 @@ class AtomicStack : MoveOnly {
     }
 
     void Push(T* elm) noexcept {
-        T* head = nullptr;
+        T* head = atomicHead().load(std::memory_order_acquire);
         do {
             elm->atomicNext().store(head, std::memory_order_relaxed);
         } while (!atomicHead().compare_exchange_weak(head, elm, std::memory_order_acq_rel));