Hum, it does still fail with a timeout of 1 hour:
-------------------------------------------
[ 41/354] test_mmap
Timeout (1:00:00)!
Thread 0x00007fff70439ca0:
File "/Users/pythonbuildbot/buildarea/3.x.hansen-osx-x86/build/Lib/test/test_mmap.py", line 685 in test_large_offset
File "/Users/pythonbuildbot/buildarea/3.x.hansen-osx-x86/build/Lib/unittest/case.py", line 387 in _executeTestPart
File "/Users/pythonbuildbot/buildarea/3.x.hansen-osx-x86/build/Lib/unittest/case.py", line 442 in run
File "/Users/pythonbuildbot/buildarea/3.x.hansen-osx-x86/build/Lib/unittest/case.py", line 494 in __call__
File "/Users/pythonbuildbot/buildarea/3.x.hansen-osx-x86/build/Lib/unittest/suite.py", line 105 in run
File "/Users/pythonbuildbot/buildarea/3.x.hansen-osx-x86/build/Lib/unittest/suite.py", line 67 in __call__
File "/Users/pythonbuildbot/buildarea/3.x.hansen-osx-x86/build/Lib/unittest/suite.py", line 105 in run
File "/Users/pythonbuildbot/buildarea/3.x.hansen-osx-x86/build/Lib/unittest/suite.py", line 67 in __call__
File "/Users/pythonbuildbot/buildarea/3.x.hansen-osx-x86/build/Lib/test/support.py", line 1078 in run
File "/Users/pythonbuildbot/buildarea/3.x.hansen-osx-x86/build/Lib/test/support.py", line 1166 in _run_suite
File "/Users/pythonbuildbot/buildarea/3.x.hansen-osx-x86/build/Lib/test/support.py", line 1192 in run_unittest
File "/Users/pythonbuildbot/buildarea/3.x.hansen-osx-x86/build/Lib/test/test_mmap.py", line 706 in test_main
File "./Lib/test/regrtest.py", line 1041 in runtest_inner
File "./Lib/test/regrtest.py", line 835 in runtest
File "./Lib/test/regrtest.py", line 659 in main
File "./Lib/test/regrtest.py", line 1619 in <module>
make: *** [buildbottest] Error 1
program finished with exit code 2
elapsedTime=4261.520698
-------------------------------------------
http://www.python.org/dev/buildbot/all/builders/AMD64%20Snow%20Leopard%203.x/builds/62/steps/test/logs/stdio