diff --git a/tests/data/test506 b/tests/data/test506
index 1fbd4bac8..85a5bc9a0 100644
--- a/tests/data/test506
+++ b/tests/data/test506
@@ -63,73 +63,79 @@ CURL_LOCK_DATA_COOKIE
 CURL_LOCK_DATA_DNS
 *** run 1
 CURLOPT_SHARE
-lock:   share   <Pigs in space>
-unlock: share   <Pigs in space>
+lock:   share  <Pigs in space>: 0
+unlock: share  <Pigs in space>: 1
 PERFORM
-lock:   dns     <Pigs in space>
-unlock: dns     <Pigs in space>
-lock:   dns     <Pigs in space>
-unlock: dns     <Pigs in space>
-lock:   cookie  <Pigs in space>
-unlock: cookie  <Pigs in space>
-lock:   cookie  <Pigs in space>
-unlock: cookie  <Pigs in space>
-lock:   cookie  <Pigs in space>
-unlock: cookie  <Pigs in space>
-lock:   cookie  <Pigs in space>
-unlock: cookie  <Pigs in space>
+lock:   dns    <Pigs in space>: 2
+unlock: dns    <Pigs in space>: 3
+lock:   dns    <Pigs in space>: 4
+unlock: dns    <Pigs in space>: 5
+lock:   cookie <Pigs in space>: 6
+unlock: cookie <Pigs in space>: 7
+lock:   cookie <Pigs in space>: 8
+unlock: cookie <Pigs in space>: 9
+lock:   cookie <Pigs in space>: 10
+unlock: cookie <Pigs in space>: 11
+lock:   cookie <Pigs in space>: 12
+unlock: cookie <Pigs in space>: 13
 run 1: set cookie 1, 2 and 3
-lock:   dns     <Pigs in space>
-unlock: dns     <Pigs in space>
+lock:   dns    <Pigs in space>: 14
+unlock: dns    <Pigs in space>: 15
+lock:   dns    <Pigs in space>: 16
+unlock: dns    <Pigs in space>: 17
 CLEANUP
-lock:   cookie  <Pigs in space>
-unlock: cookie  <Pigs in space>
+lock:   cookie <Pigs in space>: 18
+unlock: cookie <Pigs in space>: 19
 *** run 2
 CURLOPT_SHARE
-lock:   share   <Pigs in space>
-unlock: share   <Pigs in space>
+lock:   share  <Pigs in space>: 20
+unlock: share  <Pigs in space>: 21
 PERFORM
-lock:   dns     <Pigs in space>
-unlock: dns     <Pigs in space>
-lock:   cookie  <Pigs in space>
-unlock: cookie  <Pigs in space>
-lock:   cookie  <Pigs in space>
-unlock: cookie  <Pigs in space>
-lock:   cookie  <Pigs in space>
-unlock: cookie  <Pigs in space>
+lock:   dns    <Pigs in space>: 22
+unlock: dns    <Pigs in space>: 23
+lock:   cookie <Pigs in space>: 24
+unlock: cookie <Pigs in space>: 25
+lock:   cookie <Pigs in space>: 26
+unlock: cookie <Pigs in space>: 27
+lock:   cookie <Pigs in space>: 28
+unlock: cookie <Pigs in space>: 29
 run 2: set cookie 4 and 5
-lock:   dns     <Pigs in space>
-unlock: dns     <Pigs in space>
+lock:   dns    <Pigs in space>: 30
+unlock: dns    <Pigs in space>: 31
+lock:   dns    <Pigs in space>: 32
+unlock: dns    <Pigs in space>: 33
 CLEANUP
-lock:   cookie  <Pigs in space>
-unlock: cookie  <Pigs in space>
+lock:   cookie <Pigs in space>: 34
+unlock: cookie <Pigs in space>: 35
 *** run 3
 CURLOPT_SHARE
-lock:   share   <Pigs in space>
-unlock: share   <Pigs in space>
+lock:   share  <Pigs in space>: 36
+unlock: share  <Pigs in space>: 37
 CURLOPT_COOKIEJAR
 PERFORM
-lock:   dns     <Pigs in space>
-unlock: dns     <Pigs in space>
-lock:   cookie  <Pigs in space>
-unlock: cookie  <Pigs in space>
-lock:   cookie  <Pigs in space>
-unlock: cookie  <Pigs in space>
-lock:   cookie  <Pigs in space>
-unlock: cookie  <Pigs in space>
+lock:   dns    <Pigs in space>: 38
+unlock: dns    <Pigs in space>: 39
+lock:   cookie <Pigs in space>: 40
+unlock: cookie <Pigs in space>: 41
+lock:   cookie <Pigs in space>: 42
+unlock: cookie <Pigs in space>: 43
+lock:   cookie <Pigs in space>: 44
+unlock: cookie <Pigs in space>: 45
 run 3: overwrite cookie 1 and 4
-lock:   dns     <Pigs in space>
-unlock: dns     <Pigs in space>
+lock:   dns    <Pigs in space>: 46
+unlock: dns    <Pigs in space>: 47
+lock:   dns    <Pigs in space>: 48
+unlock: dns    <Pigs in space>: 49
 try SHARE_CLEANUP...
-lock:   share   <Pigs in space>
-unlock: share   <Pigs in space>
+lock:   share  <Pigs in space>: 50
+unlock: share  <Pigs in space>: 51
 SHARE_CLEANUP failed, correct
 CLEANUP
-lock:   cookie  <Pigs in space>
-unlock: cookie  <Pigs in space>
+lock:   cookie <Pigs in space>: 52
+unlock: cookie <Pigs in space>: 53
 SHARE_CLEANUP
-lock:   share   <Pigs in space>
-unlock: share   <Pigs in space>
+lock:   share  <Pigs in space>: 54
+unlock: share  <Pigs in space>: 55
 GLOBAL_CLEANUP
 </stdout>
 <stderr>
diff --git a/tests/libtest/lib506.c b/tests/libtest/lib506.c
index 52f6a38e7..998c1370c 100644
--- a/tests/libtest/lib506.c
+++ b/tests/libtest/lib506.c
@@ -14,20 +14,27 @@ struct Tdata {
   char *url;
 };
 
+struct userdata {
+  char *text;
+  int counter;
+};
 
 /* lock callback */
 void lock(CURL *handle, curl_lock_data data, curl_lock_access access,
           void *useptr )
 {
   const char *what;
+  struct userdata *user = (struct userdata *)useptr;
+
   (void)handle;
   (void)access;
+
   switch ( data ) {
     case CURL_LOCK_DATA_SHARE:
-      what = "share ";  
+      what = "share";  
       break;
     case CURL_LOCK_DATA_DNS:
-      what = "dns   ";  
+      what = "dns";  
       break;
     case CURL_LOCK_DATA_COOKIE:
       what = "cookie";  
@@ -36,20 +43,22 @@ void lock(CURL *handle, curl_lock_data data, curl_lock_access access,
       fprintf(stderr, "lock: no such data: %d\n",data);
       return;
   }
-  printf("lock:   %s  <%s>\n", what, (char *)useptr); 
+  printf("lock:   %-6s <%s>: %d\n", what, user->text, user->counter);
+  user->counter++;
 }
 
 /* unlock callback */
 void unlock(CURL *handle, curl_lock_data data, void *useptr )
 {
   const char *what;
+  struct userdata *user = (struct userdata *)useptr;
   (void)handle;
   switch ( data ) {
     case CURL_LOCK_DATA_SHARE:
-      what = "share ";  
+      what = "share";  
       break;
     case CURL_LOCK_DATA_DNS:
-      what = "dns   ";  
+      what = "dns";  
       break;
     case CURL_LOCK_DATA_COOKIE:
       what = "cookie";  
@@ -58,7 +67,8 @@ void unlock(CURL *handle, curl_lock_data data, void *useptr )
       fprintf(stderr, "unlock: no such data: %d\n",data);
       return;
   }
-  printf("unlock: %s  <%s>\n", what, (char *)useptr); 
+  printf("unlock: %-6s <%s>: %d\n", what, user->text, user->counter);
+  user->counter++;
 }
 
 
@@ -127,6 +137,10 @@ CURLcode test(char *URL)
   CURLSH *share;
   struct curl_slist *headers;
   int i;
+  struct userdata user;
+
+  user.text = (char *)"Pigs in space";
+  user.counter = 0;
   
   printf( "GLOBAL_INIT\n" );
   curl_global_init( CURL_GLOBAL_ALL );
@@ -136,7 +150,7 @@ CURLcode test(char *URL)
   share = curl_share_init();
   curl_share_setopt( share, CURLSHOPT_LOCKFUNC,   lock);
   curl_share_setopt( share, CURLSHOPT_UNLOCKFUNC, unlock);
-  curl_share_setopt( share, CURLSHOPT_USERDATA,   "Pigs in space");
+  curl_share_setopt( share, CURLSHOPT_USERDATA,   &user);
   printf( "CURL_LOCK_DATA_COOKIE\n" );
   curl_share_setopt( share, CURLSHOPT_SHARE,      CURL_LOCK_DATA_COOKIE);
   printf( "CURL_LOCK_DATA_DNS\n" );