diff -Naur bacula-11.0.0.old/src/lib/message.c bacula-11.0.0/src/lib/message.c
--- bacula-11.0.0.old/src/lib/message.c	2021-01-12 12:36:32.630470094 +0100
+++ bacula-11.0.0/src/lib/message.c	2021-01-12 12:39:42.477945569 +0100
@@ -28,6 +28,7 @@
  *
  */
 
+#include <assert.h>
 #include "bacula.h"
 #include "jcr.h"
 
@@ -1476,7 +1477,8 @@
 
     if (type == M_ABORT) {
        char *p = 0;
-       p[0] = 0;                      /* generate segmentation violation */
+       // p[0] = 0;                      /* generate segmentation violation */
+       assert(p!=NULL);
     }
     if (type == M_ERROR_TERM) {
        exit(1);