--- wikisrc/tutorials/how_to_enable_and_run_dtrace.mdwn	2014/09/10 14:04:44	1.8
+++ wikisrc/tutorials/how_to_enable_and_run_dtrace.mdwn	2014/09/10 20:42:10	1.9
@@ -88,7 +88,7 @@ List the dtrace probes 
   
 
 
-Put the following into the file hello.d 
+Put the following into the file hello.d:
     
     BEGIN
     {
@@ -106,7 +106,8 @@ Run the hello world script: 
       0      1                           :BEGIN   Hello world
     
 
-A more complex example that traces the execution of a sleep operation in the kernel: 
+A more complex example that traces the execution of a sleep operation
+in the kernel. Put it in sleep.d:
     
     #pragma D option flowindent
     
@@ -117,9 +118,7 @@ A more complex example that traces the e
             printf("fd: %d", arg0);
     }
     
-    fbt:::
-    /self->traceme/
-    {}
+    fbt::syscall:entry /self->traceme/ {}
     
     fbt::syscall:return
     /self->traceme/
@@ -129,4 +128,4 @@ A more complex example that traces the e
     }
     
 
-Start the script running (dtrace -s <scriptname.d>) and then execute a sleep 2 in another shell. 
+Start the script running (dtrace -s sleep.d) and then execute a "sleep 2" in another shell.