diff -up iotop-0.6/iotop/data.py.splitline iotop-0.6/iotop/data.py
--- iotop-0.6/iotop/data.py.splitline	2013-05-27 00:44:18.000000000 +0200
+++ iotop-0.6/iotop/data.py	2018-07-09 16:08:04.135771959 +0200
@@ -193,7 +193,13 @@ def parse_proc_pid_status(pid):
     result_dict = {}
     try:
         for line in open('/proc/%d/status' % pid):
-            key, value = line.split(':\t', 1)
+            try:
+                key, value = line.split(':', 1)
+            except ValueError:
+                # Ignore lines that are not formatted correctly as
+                # some downstream kernels may have weird lines and
+                # the needed fields are probably formatted correctly.
+                continue
             result_dict[key] = value.strip()
     except IOError:
         pass  # No such process