TestSocketSendfile.test_it() failed with "OSError: [Errno 28] No space left on device" on PPC64LE Fedora 3.x buildbot.

It also caused troubles on "AMD64 Fedora Rawhide Clang 3.x" worker.

If I recall correctly, it writes like 8 GB of real data, not just empty files made of holes.

I suggest to either remove the test or to use way less disk space.

https://buildbot.python.org/all/#builders/11/builds/259

Traceback (most recent call last):
  File "/home/shager/cpython-buildarea/3.x.edelsohn-fedora-ppc64le/build/Lib/test/test_largefile.py", line 161, in test_it
    shutil.copyfile(TESTFN, TESTFN2)
  File "/home/shager/cpython-buildarea/3.x.edelsohn-fedora-ppc64le/build/Lib/shutil.py", line 270, in copyfile
    _fastcopy_sendfile(fsrc, fdst)
  File "/home/shager/cpython-buildarea/3.x.edelsohn-fedora-ppc64le/build/Lib/shutil.py", line 163, in _fastcopy_sendfile
    raise err from None
  File "/home/shager/cpython-buildarea/3.x.edelsohn-fedora-ppc64le/build/Lib/shutil.py", line 149, in _fastcopy_sendfile
    sent = os.sendfile(outfd, infd, offset, blocksize)
OSError: [Errno 28] No space left on device: '@test_38097_tmp' -> '@test_38097_tmp2'

New changeset b39fb8e847ac59b539ad7e93df91c1709815180e by Giampaolo Rodola in branch 'master':
bpo-39488: Skip test_largefile tests if not enough disk space (GH-18261)
https://github.com/python/cpython/commit/b39fb8e847ac59b539ad7e93df91c1709815180e

Giampaolo Rodola modified the tests to skip them if there is not enough disk space. Let's see if it's enough to fix these buildbots. Since the issue was random, I close the issue and just hope that it's now fixed :-)