fix crashers rendering with no kernel boot message state

bootchartd

@@ -107,6 +107,7 @@ wait_boot()
 			# Give the exit process some time to start
 			stopinitrd=$( pidof stopinitrd )
 			if [ -n "$stopinitrd" ] ; then
+				umount proc
 				# move initrd logs somewhere safe (?)
 				mv $LOG_DIR/* /dev/shm/
 				wait

pybootchartgui/parsing.py

@@ -363,6 +363,7 @@ def __init__(self):
 	self.disk_stats = None
 	self.ps_stats = None
 	self.cpu_stats = None
+	self.kernel = None
 
     def valid(self):
         return self.headers != None and self.disk_stats != None and self.ps_stats != None and self.cpu_stats != None

pybootchartgui/process_tree.py

@@ -43,7 +43,10 @@ def __init__(self, writer, kernel, psstats, monitoredApp, prune, idle, for_testi
 
         # tack the kernel data onto psstats for now ...
 #	self.psstats = psstats
-        process_list = kernel + psstats.process_list
+        if kernel is None:
+            process_list = psstats.process_list
+        else:
+            process_list = kernel + psstats.process_list
 	self.process_list = sorted(process_list, key = lambda p: p.pid)
 	self.sample_period = psstats.sample_period