Add in better logging.

volatility/framework/automagic/stacker.py

@@ -8,6 +8,7 @@ once a layer successfully stacks on top of the existing layers, it is removed fr
 """
 
 import logging
+import traceback
 import typing
 
 import volatility
@@ -85,7 +86,9 @@ class LayerStacker(interfaces.automagic.AutomagicInterface):
                         break
                 except Exception as excp:
                     # Stacking exceptions are likely only of interest to developers, so the lowest level of logging
+                    fulltrace = traceback.TracebackException.from_exception(excp).format(chain = True)
                     vollog.log(constants.LOGLEVEL_VVV, "Exception during stacking: {}".format(str(excp)))
+                    vollog.log(constants.LOGLEVEL_VVVV, "\n".join(fulltrace))
             else:
                 stacked = False
             if new_layer and stacker_cls:

volatility/framework/constants/__init__.py

@@ -18,6 +18,7 @@ DISABLE_MULTITHREADED_SCANNING = False
 LOGLEVEL_V = 9
 LOGLEVEL_VV = 8
 LOGLEVEL_VVV = 7
+LOGLEVEL_VVVV = 6
 
 if sys.platform == 'windows':
     CACHE_PATH = os.path.join(os.environ.get("APPDATA", os.path.expanduser("~")), "volatility3")