Do not die in case of instance damaged XML.

master/product/Vifib/Tool/SlapTool.py

@@ -412,6 +412,7 @@ class SlapTool(BaseTool):
 
   def _instanceXmlToDict(self, xml):
     result_dict = {}
+    try:
       if xml is not None and xml != '':
         tree = etree.fromstring(xml.encode('utf-8'))
         for element in tree.findall('parameter'):
@@ -422,6 +423,9 @@ class SlapTool(BaseTool):
           else:
             value = element.text
           result_dict[key] = value
+    except (etree.XMLSchemaError, etree.XMLSchemaParseError,
+      etree.XMLSchemaValidateError, etree.XMLSyntaxError):
+      LOG('SlapTool', INFO, 'Issue during parsing xml:', error=True)
     return result_dict
 
   def _getSlapPartitionByPackingList(self, computer_partition_document):