Continue to refine DTrace idea -- add a few more possible tasks.

svn path=/www/; revision=35474

en/projects/ideas/ideas.xml

@@ -15,7 +15,7 @@ Ideas//EN"
 <ideas>
   <cvs:keywords xmlns:cvs="http://www.FreeBSD.org/XML/CVS" version="1.0">
     <cvs:keyword name="freebsd">
-      $FreeBSD: www/en/projects/ideas/ideas.xml,v 1.138 2010/03/08 21:31:48 rwatson Exp $
+      $FreeBSD: www/en/projects/ideas/ideas.xml,v 1.139 2010/03/08 22:31:22 rwatson Exp $
     </cvs:keyword>
   </cvs:keywords>
 
@@ -465,14 +465,24 @@ these buses to be a subclass of this new base class.</p>
 <p>DTrace is a dynamic tracing facility designed by Sun Microsystems and
   released in Solaris 10.  They have since released the major part of
   Solaris under the banner of OpenSolaris and the Common Development and
-  Distribution License (CDDL) 1.0.  John Birrell has created an initial port and
+  Distribution License (CDDL) 1.0.  John Birrell has created an initial port
-  should be contacted for information on what tasks remain to be done;
+  provides strong kernel functionality, but significant work remains to be
-  two possible areas of work are:</p>
+  done.  Some ideas for projects:</p>
 <ul>
-  <li>We need a clean CTF implementation for FreeBSD to avoid the license
+  <li>It would be preferable to have a BSD-licensed CTF implementation, but
-    (CDDL) that Sun has on their code. John will write a specification about
+    this requires careful documentation of the specification and a clean-room
-    the file format and the Summer of Code project is to implement that and
+    implementation.</li>
-    write tests for the implementation without looking at the Sun code.</li>
+  <li>Tracing of user processes is not supported, and is a highly desirable
+    feature.</li>
+  <li>It would be quite useful to track changes to DTrace in OpenSolaris since
+    the initial port, merging enhancements and bug fixes that apply to
+    FreeBSD.</li>
+  <li>There has been some work to add static trace points for kernel
+    subsystems, such as VFS, the MAC Framework, privilege checking, etc.
+    However, it would be useful to add further static trace points to the
+    network stack, disk I/O subsystems, GEOM, etc.  It would be useful to do
+    this in a similar way to Solaris so that Solaris monitoring scripts could
+    be used in FreeBSD.</li>
 </ul>
 <p><strong>Requirements</strong>:</p>
 <ul>