From 06c22e76d45a5f8f2fd15fea6a8e7c9efa80962f Mon Sep 17 00:00:00 2001
From: Bill Nottingham <notting@redhat.com>
Date: Tue, 25 Sep 2012 01:22:01 -0400
Subject: MALLOC_CHECK_ is not thread safe. Don't enable it by default even in
 debug mode. (#853175)

---
 sysconfig/debug | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sysconfig/debug b/sysconfig/debug
index 3a251fd4..4ae4e7b5 100644
--- a/sysconfig/debug
+++ b/sysconfig/debug
@@ -4,7 +4,8 @@
 # 0: silently ignore errors
 # 1: print diagnostics on stderr when an error is detected
 # 2: call abort when an error is detected
-export MALLOC_CHECK_=1
+# Note: MALLOC_CHECK_ is not thread safe, enable at your own risk.
+# export MALLOC_CHECK_=1
 
 # MALLOC_PERTURB_: initialize cleared memory to the specified value
 export MALLOC_PERTURB_=$(($RANDOM % 255 + 1))
-- 
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