--- trunk/grubby/test.sh	2012/07/02 13:13:49	1856
+++ trunk/grubby/test.sh	2012/07/02 13:14:43	1858
@@ -126,6 +126,11 @@
 done
 
 export MALLOC_CHECK_=2
+if [ -n "${RANDOM}" ]; then
+    export MALLOC_PERTURB_=$(($RANDOM % 255 + 1))
+else
+    export MALLOC_PERTURB_=1
+fi
 
 testing="Parse/write comparison"
 for n in test/*.[0-9]*; do