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-rw-r--r--sysconfig/debug3
1 files changed, 2 insertions, 1 deletions
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))