diff --git a/import-layers/yocto-poky/bitbake/lib/bb/server/process.py b/import-layers/yocto-poky/bitbake/lib/bb/server/process.py
index a3078a8..982fcf7 100644
--- a/import-layers/yocto-poky/bitbake/lib/bb/server/process.py
+++ b/import-layers/yocto-poky/bitbake/lib/bb/server/process.py
@@ -30,7 +30,7 @@
 import sys
 import time
 import select
-from Queue import Empty
+from queue import Empty
 from multiprocessing import Event, Process, util, Queue, Pipe, queues, Manager
 
 from . import BitBakeBaseServer, BitBakeBaseServerConnection, BaseImplServer
@@ -137,7 +137,7 @@
         if not fds:
             fds = []
 
-        for function, data in self._idlefuns.items():
+        for function, data in list(self._idlefuns.items()):
             try:
                 retval = function(self, data, False)
                 if retval is False:
@@ -145,7 +145,7 @@
                     nextsleep = None
                 elif retval is True:
                     nextsleep = None
-                elif isinstance(retval, float):
+                elif isinstance(retval, float) and nextsleep:
                     if (retval < nextsleep):
                         nextsleep = retval
                 elif nextsleep is None:
@@ -213,7 +213,7 @@
 # Wrap Queue to provide API which isn't server implementation specific
 class ProcessEventQueue(multiprocessing.queues.Queue):
     def __init__(self, maxsize):
-        multiprocessing.queues.Queue.__init__(self, maxsize)
+        multiprocessing.queues.Queue.__init__(self, maxsize, ctx=multiprocessing.get_context())
         self.exit = False
         bb.utils.set_process_name("ProcessEQueue")
 
@@ -222,11 +222,10 @@
 
     def waitEvent(self, timeout):
         if self.exit:
-            sys.exit(1)
+            return self.getEvent()
         try:
             if not self.server.is_alive():
-                self.setexit()
-                return None
+                return self.getEvent()
             return self.get(True, timeout)
         except Empty:
             return None
@@ -235,9 +234,10 @@
         try:
             if not self.server.is_alive():
                 self.setexit()
-                return None
             return self.get(False)
         except Empty:
+            if self.exit:
+                sys.exit(1)
             return None