diff -rup supervisor-3.3.4-orig/supervisor/options.py supervisor-3.3.4/supervisor/options.py
--- supervisor-3.3.4-orig/supervisor/options.py	1970-01-01 01:00:01.000000000 +0100
+++ supervisor-3.3.4/supervisor-new/options.py	2018-10-24 10:53:19.368503735 +0200
@@ -1395,7 +1395,11 @@ class ServerOptions(Options):
             name = limit['name']
             name = name # name is used below by locals()

-            soft, hard = resource.getrlimit(res)
+            try:
+                soft, hard = resource.getrlimit(res)
+            except Exception:
+                # handle old kernel problems, this is not critical to execute
+                soft, hard = -1, -1

             if (soft < min) and (soft != -1): # -1 means unlimited
                 if (hard < min) and (hard != -1):