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

[Barry Warsaw]

*** This bug is a duplicate of bug 1124508 ***
    https://bugs.launchpad.net/bugs/1124508

I'm going to apply the upstream fix for LP: #1124508 and see if that
fixes pycurl.  It will almost certainly fix the C program crash.  I'll
un-dup if that turns out to not be the case.

** Changed in: curl (Ubuntu Raring)
     Assignee: (unassigned) => Barry Warsaw (barry)

** Changed in: pycurl (Ubuntu Raring)
     Assignee: (unassigned) => Barry Warsaw (barry)

** Changed in: curl (Ubuntu Raring)
    Milestone: None => ubuntu-13.04-beta-1

** Changed in: curl (Ubuntu Raring)
   Importance: Undecided => High

** This bug has been marked a duplicate of bug 1124508
   Transmission crashes on exit [curl_multi_cleanup error]

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

Title:
  pycurl FTBFS due to segfault in test suite

Status in “curl” package in Ubuntu:
  New
Status in “pycurl” package in Ubuntu:
  Triaged
Status in “curl” source package in Raring:
  New
Status in “pycurl” source package in Raring:
  Triaged

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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