Convert the test_rig over to print process IDs (excluding the current one, and including the sentinal but that's because we're not going from the KDBG structure.

test_rig.py

@@ -127,6 +127,7 @@ def test_plugin():
     virtual_types = xp_sp2_x86_vtypes.ntkrnlmp_types
     ntkrnlmp = vtypes.VTypeSymbolTable('ntkrnlmp', virtual_types, nativelst)
     ntkrnlmp.set_structure_class('_ETHREAD', windows._ETHREAD)
+    ntkrnlmp.set_structure_class('_LIST_ENTRY', windows._LIST_ENTRY)
     ctx.symbol_space.append(ntkrnlmp)
 
     base = layers.physical.FileLayer(ctx, 'data', filename = '/home/mike/memory/private/jon-fres.dmp')
@@ -137,7 +138,8 @@ def test_plugin():
     import volatility.plugins.windows.pslist as pslist
 
     eproc = pslist.PsList.kernel_process_from_physical_process(ctx, 'data', 'intel', 0x192ad18)
-    print(eproc.UniqueProcessId)
+    for proc in eproc.ActiveProcessLinks:
+        print(proc.UniqueProcessId)
 
 # TODO:
 #