Updated debug info and EXT signature

src/binwalk/core/plugin.py

@@ -121,7 +121,7 @@ class Plugins(object):
             except IgnoreFileException as e:
                 raise e
             except Exception as e:
-                binwalk.core.common.warning("%s.%s failed: %s" % (callback.__module__, callback.__name__, e))
+                binwalk.core.common.warning("%s.%s failed [%s]: '%s'" % (callback.__module__, callback.__name__, type(e), e))
 
     def _find_plugin_class(self, plugin):
         for (name, klass) in inspect.getmembers(plugin, inspect.isclass):

src/binwalk/magic/filesystems

@@ -526,7 +526,7 @@
 # http://etbe.coker.com.au/2008/07/08/label-vs-uuid-vs-device/
 0x438       uleshort        0xEF53          Linux EXT filesystem,
 >0x404      ulelong         x               blocks count: %d,
->0x404      lelong*1024     x               image size: %d,{jump:%d}
+>0x404      ulelong*1024    x               image size: %d,{jump:%d}
 >0x43A      leshort         >4              {invalid}invalid state
 >0x43A      leshort         3               {invalid}invalid state
 >0x43A      leshort         <0              {invalid}invalid state