From 96d711e8c3289fbeb2c6dbd26e8cf9e2b0971597 Mon Sep 17 00:00:00 2001
From: Kuai Wei <kuaiwei.kw@alibaba-inc.com>
Date: Wed, 11 Sep 2024 12:02:57 +0800
Subject: [PATCH] [JIT] Fix mem leak for ReduceNMethodSize

Summary: free immutable data in nmethod::flush

Testing: test/hotspot/jtreg/compiler/codecache/stress/UnexpectedDeoptimizationTest.java

Reviewers: lusou.zq, yueshi.zwj

Issue: https://github.com/dragonwell-project/dragonwell11/issues/861
---
 src/hotspot/share/code/nmethod.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/hotspot/share/code/nmethod.cpp b/src/hotspot/share/code/nmethod.cpp
index d450d12fd51..ee27cfe1d11 100644
--- a/src/hotspot/share/code/nmethod.cpp
+++ b/src/hotspot/share/code/nmethod.cpp
@@ -1396,6 +1396,11 @@ void nmethod::flush() {
   assert(_speculation_log == NULL, "should have been nulled out when transitioned to zombie");
 #endif
 
+  if (ReduceNMethodSize && _immutable_data_size > 0) {
+    assert(_immutable_data != data_end(), "must be");
+    os::free(_immutable_data);
+    _immutable_data = data_end();
+  }
   CodeBlob::flush();
   CodeCache::free(this);
 }