# HG changeset patch
# Parent 8d44bbdcb770484c05b96b2e5345932541215962
diff -r 8d44bbdcb770 -r 2fada97488e2 Lib/multiprocessing/forking.py
--- a/Lib/multiprocessing/forking.py	Wed Apr 11 16:38:15 2012 +0100
+++ b/Lib/multiprocessing/forking.py	Wed Apr 11 18:37:27 2012 +0100
@@ -35,6 +35,7 @@
 import os
 import sys
 import signal
+import gc
 
 from multiprocessing import util, process
 
@@ -122,15 +123,20 @@
             r, w = os.pipe()
             self.sentinel = r
 
+            gcenabled = gc.isenabled()
+            gc.disable()
             self.pid = os.fork()
             if self.pid == 0:
                 os.close(r)
                 if 'random' in sys.modules:
                     import random
                     random.seed()
-                code = process_obj._bootstrap()
+                code = process_obj._bootstrap(gcenabled)
                 os._exit(code)
 
+            if gcenabled:
+                gc.enable()
+
             # `w` will be closed when the child exits, at which point `r`
             # will become ready for reading (using e.g. select()).
             os.close(w)
@@ -374,7 +380,7 @@
 
         from_parent.close()
 
-        exitcode = self._bootstrap()
+        exitcode = self._bootstrap(False)
         exit(exitcode)
 
 
diff -r 8d44bbdcb770 -r 2fada97488e2 Lib/multiprocessing/process.py
--- a/Lib/multiprocessing/process.py	Wed Apr 11 16:38:15 2012 +0100
+++ b/Lib/multiprocessing/process.py	Wed Apr 11 18:37:27 2012 +0100
@@ -42,6 +42,7 @@
 import sys
 import signal
 import itertools
+import gc
 from _weakrefset import WeakSet
 
 #
@@ -256,7 +257,7 @@
 
     ##
 
-    def _bootstrap(self):
+    def _bootstrap(self, reenable_gc):
         from . import util
         global _current_process
 
@@ -278,6 +279,8 @@
                 # delay finalization of the old process object until after
                 # _run_after_forkers() is executed
                 del old_process
+            if reenable_gc:
+                gc.enable()
             util.info('child process calling self.run()')
             try:
                 self.run()