>> rdmurray@pydev:~/python/p34>python -c 'import resource; print(resource.getrlimit(resource.RLIMIT_NOFILE))'
>> (1024L, 1048576L)
>
> Oh, 1 million files is much bigger than 4 thousand files (4096).
>
> The test should only test FD_SETSIZE + 10 files, the problem is to get FD_SETSITE:

We could cap it to let's say 2**16, it's larger than any possible
FD_SETSIZE (which are usually low since fd_set are often allocated on
the stack and select() doesn't scale well behind that anyway).

But I don't see anything wrong with the test, it's really the buildbot
setting which is to blame: I expect other tests to fail with such a
low max virtual memory.