diff -up sos-2.2/sos/plugins/kernel.py.orig sos-2.2/sos/plugins/kernel.py
--- sos-2.2/sos/plugins/kernel.py.orig	2012-03-06 11:22:54.880323589 +0000
+++ sos-2.2/sos/plugins/kernel.py	2012-03-06 11:23:17.034324094 +0000
@@ -71,6 +71,11 @@ class kernel(sos.plugintools.PluginBase)
         self.addCopySpec("/proc/zoneinfo")
         self.addCopySpec("/proc/sys/kernel/tainted")
         self.addCopySpec("/proc/buddyinfo")
+        self.addCopySpec("/proc/softirqs")
+        self.addCopySpec("/proc/timer*")
+        self.addCopySpec("/proc/lock*")
+        self.addCopySpec("/sys/devices/system/clocksource/clocksource0/available_clocksource")
+        self.addCopySpec("/sys/devices/system/clocksource/clocksource0/current_clocksource")
 
         return
 
diff -up sos-2.2/sos/plugins/kernel_realtime.py.orig sos-2.2/sos/plugins/kernel_realtime.py
--- sos-2.2/sos/plugins/kernel_realtime.py.orig	2012-03-06 11:23:54.319324945 +0000
+++ sos-2.2/sos/plugins/kernel_realtime.py	2012-03-06 11:23:17.034324094 +0000
@@ -0,0 +1,32 @@
+# Copyright 2012 Red Hat Inc.
+# Guy Streeter <streeter redhat com>
+# Bryn M. Reeves <bmr@redhat.com>
+#
+#   This program is free software; you can redistribute it and/or
+#   modify it under the terms of the GNU General Public License
+#   as published by the Free Software Foundation; version 2.
+#
+#   This application is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#   General Public License for more details.
+
+import sos.plugintools
+import os
+
+class kernel_realtime(sos.plugintools.PluginBase):
+    '''Information specific to the realtime kernel
+    '''
+
+    def checkenabled(self):
+        if os.path.exists('/sys/kernel/realtime'):
+            return True
+        return False
+
+    def setup(self):
+        self.addCopySpec('/etc/rtgroups')
+        self.addCopySpec('/proc/sys/kernel/sched_rt_period_us')
+        self.addCopySpec('/proc/sys/kernel/sched_rt_runtime_us')
+        self.addCopySpec('/sys/kernel/realtime')
+        if self.isInstalled('tuna'):
+            self.collectExtOutput('/usr/bin/tuna -CP')