Index: Lib/bsddb/test/test_lock.py
===================================================================
--- Lib/bsddb/test/test_lock.py	(revision 68950)
+++ Lib/bsddb/test/test_lock.py	(working copy)
@@ -16,6 +16,8 @@
     else :
         from threading import current_thread as currentThread
 
+epsilon = 1e-4
+
 #----------------------------------------------------------------------
 
 class LockingTestCase(unittest.TestCase):
@@ -124,7 +126,7 @@
                 self.env.lock_get,anID2, "shared lock", db.DB_LOCK_READ)
         end_time=time.time()
         deadlock_detection.end=True
-        self.assertTrue((end_time-start_time) >= 0.1)
+        self.assertTrue((end_time-start_time) >= 0.1 - epsilon)
         self.env.lock_put(lock)
         t.join()