utils: catch error: [Errno 98] Address already in use errors

rhodecode/lib/utils2.py

@@ -36,6 +36,7 @@ import urlobject
 import uuid
 import getpass
 import socket
+import errno
 import random
 from functools import update_wrapper, partial, wraps
 
@@ -1201,7 +1202,11 @@ def get_available_port(min_port=40000, max_port=55555):
             sock.close()
             break
         except OSError:
-            pass
+            continue
+        except socket.error as e:
+            if e.args[0] in [errno.EADDRINUSE, errno.ECONNREFUSED]:
+                continue
+            raise
 
     del sock
     return pick_port