--- a/macosx-debug.rst	Fri Jan 20 18:44:02 2012 +0200
+++ b/macosx-debug.rst	Sat Jan 21 18:47:08 2012 +0200
@@ -23,4 +23,14 @@
   http://en.wikipedia.org/wiki/Dtrace
                 Wikipedia home page.
 
+ktrace.
+=======
 
+Log files generated by ``ktrace`` are viewable in human-readable form using
+``kdump``.
+
+Since Mac OS X 10.5 Leopard, ktrace has been replaced by dtrace.
+
+  http://en.wikipedia.org/wiki/Ktrace
+                Wikipedia home page.
+