[Bug 1163609] Re: pycurl FTBFS due to segfault in test suite

[Barry Warsaw]

Likely related to

http://sourceforge.net/p/pycurl/bugs/26/

duplicated at

http://sourceforge.net/p/pycurl/bugs/27/

but as upstream is effectively abandoned, I'd be surprised to see this
fixed.  I can't find anything useful at

https://github.com/Lispython/pycurl/

which PyPI claims to be the new home of the pycurl2 fork.

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https://bugs.launchpad.net/bugs/1163609

Title:
  pycurl FTBFS due to segfault in test suite

Status in “pycurl” package in Ubuntu:
  New

Bug description:
  pycurl FTBFS in Raring:

  https://launchpadlibrarian.net/135742128/buildlog_ubuntu-raring-
  amd64.pycurl_7.19.0-5ubuntu6_FAILEDTOBUILD.txt.gz

  The problem is that the test suite runs test_internals.py, and this
  segfaults.  This is easily reproducible outside the build environment
  using the following code:

  $ python
  >>> from pycurl import CurlMulti
  >>> m = CurlMulti()
  >>> del m
  Segmentation fault (core dumped)

  Tracing through with gdb, the problem appears that calling
  curl_multi_cleanup() on a CURLM* previously returned by
  curl_multi_init() is what crashes.  The cleanup is called from
  util_multi_close() in pycurl.c via do_multi_dealloc() but afaict, the
  CURLM* handle is valid.  Or at least, it's unchanged from what
  curl_multi_init() returns.  The above code is taken directly from
  test_internals.py with the extraneous stuff boiled out.

  # remove an invalid but closed handle
  if 1:
      m = CurlMulti()
      c = Curl()
      c.close()
      m.remove_handle(c)
      del m, c

  'c' isn't needed to reproduce the crash.

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