See output of regrtest below. It was run on an Intel Mac OS X 10.4

A similar failure is observed on the py3k branch.

./python.exe Lib/test/regrtest.py -v test_math

test_math
testAcos (test.test_math.MathTests) ... ok
testAcosh (test.test_math.MathTests) ... ok
testAsin (test.test_math.MathTests) ... ok
testAsinh (test.test_math.MathTests) ... ok
testAtan (test.test_math.MathTests) ... ok
testAtan2 (test.test_math.MathTests) ... ok
testAtanh (test.test_math.MathTests) ... ok
testCeil (test.test_math.MathTests) ... ok
testConstants (test.test_math.MathTests) ... ok
testCopysign (test.test_math.MathTests) ... ok
testCos (test.test_math.MathTests) ... ok
testCosh (test.test_math.MathTests) ... ok
testDegrees (test.test_math.MathTests) ... ok
testExp (test.test_math.MathTests) ... ok
testFabs (test.test_math.MathTests) ... ok
testFactorial (test.test_math.MathTests) ... ok
testFloor (test.test_math.MathTests) ... ok
testFmod (test.test_math.MathTests) ... ok
testFrexp (test.test_math.MathTests) ... ok
testFsum (test.test_math.MathTests) ... ok
testHypot (test.test_math.MathTests) ... ok
testIsinf (test.test_math.MathTests) ... ok
testIsnan (test.test_math.MathTests) ... ok
testLdexp (test.test_math.MathTests) ... ok
testLog (test.test_math.MathTests) ... ok
testLog10 (test.test_math.MathTests) ... ok
testLog1p (test.test_math.MathTests) ... ok
testModf (test.test_math.MathTests) ... ok
testPow (test.test_math.MathTests) ... ok
testRadians (test.test_math.MathTests) ... ok
testSin (test.test_math.MathTests) ... ok
testSinh (test.test_math.MathTests) ... ok
testSqrt (test.test_math.MathTests) ... ok
testTan (test.test_math.MathTests) ... ok
testTanh (test.test_math.MathTests) ... ok
test_exceptions (test.test_math.MathTests) ... ok
test_mtestfile (test.test_math.MathTests) ... FAIL
test_testfile (test.test_math.MathTests) ... ok
test_trunc (test.test_math.MathTests) ... ok
Doctest: ieee754.txt ... ok

======================================================================
FAIL: test_mtestfile (test.test_math.MathTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/salman/svn/python/trunk/Lib/test/test_math.py", line
1016, in test_mtestfile
    '\n  '.join(failures))
AssertionError: Failures in test_mtestfile:
  expm10302:expm1(709.7827128932839): expected 1.797693134682424e+308,
got 'OverflowError'

----------------------------------------------------------------------
Ran 40 tests in 2.273s

FAILED (failures=1)
test test_math failed -- Traceback (most recent call last):
  File "/Users/salman/svn/python/trunk/Lib/test/test_math.py", line
1016, in test_mtestfile
    '\n  '.join(failures))
AssertionError: Failures in test_mtestfile:
  expm10302:expm1(709.7827128932839): expected 1.797693134682424e+308,
got 'OverflowError'

1 test failed:
    test_math