./python3 Lib/test/regrtest.py -v -M 2.1Gb test_bigmem 
test_bigmem

[snip skipped tests]

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ERROR: test_center_unicode (test.test_bigmem.StrTest)
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Traceback (most recent call last):
  File "/home/antoine/py3k/__svn__/Lib/test/support.py", line 682, in
wrapper
    return f(self, maxsize)
  File "/home/antoine/py3k/__svn__/Lib/test/test_bigmem.py", line 60, in
test_center_unicode
    s = SUBSTR.center(size)
MemoryError

======================================================================
ERROR: test_encode_raw_unicode_escape (test.test_bigmem.StrTest)
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Traceback (most recent call last):
  File "/home/antoine/py3k/__svn__/Lib/test/support.py", line 682, in
wrapper
    return f(self, maxsize)
  File "/home/antoine/py3k/__svn__/Lib/test/test_bigmem.py", line 102,
in test_encode_raw_unicode_escape
    return self.basic_encode_test(size, 'raw_unicode_escape')
  File "/home/antoine/py3k/__svn__/Lib/test/test_bigmem.py", line 92, in
basic_encode_test
    s = c * size
TypeError: can't multiply sequence by non-int of type 'float'

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Ran 88 tests in 0.225s