id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
14250	FileBasedCacheTests.test_cull test failure	Luke Plant	nobody	"Since r13678, I'm getting this test failure:

{{{
======================================================================                                
FAIL: test_cull (regressiontests.cache.tests.FileBasedCacheTests)                                     
----------------------------------------------------------------------                                
Traceback (most recent call last):                                                                    
  File ""/home/luke/devel/django/trunk/tests/regressiontests/cache/tests.py"", line 430, in test_cull   
    self.perform_cull_test(50, 28)                                                                    
  File ""/home/luke/devel/django/trunk/tests/regressiontests/cache/tests.py"", line 367, in perform_cull_test                                                                                                 
    self.assertEqual(count, final_count)                                                              
AssertionError: 27 != 28                                                                              
}}}

This happens whether I run just the single test or many others.  This does not appear to be causing test failures for anyone else (like Russell who checked it in, or the buildbots), but it is happening on a clean checkout on my Ubuntu Lucid box, Python 2.4/2.5/2.6, and on a CentOS 5.5 box, Python 2.4.  

I don't have access to a box where the test passes to see what is different, and I cannot track down any source of non-deterministic behaviour, so this has me stumped for now.
"		closed	Core (Cache system)	dev		fixed			Unreviewed	0	0	0	0	0	0