[Bug 1013798] Re: Blink SIP client segfaults with libgcrypt11 1.5.0-3ubuntu0.1

[Saúl Ibarra Corretgé]

Hi,

I work for AG Projects, we are the upstream for the Blink SIP client and
while testing this out I just found the apparent root cause for the
libgcrypt11 crash: Ubuntu includes a patch called
'no_global_init_during_thread_callbacks.diff'. Removing it avoids the
crash. This patch is not present on the Debian package nor upstream, but
unfortunately I'm not aware of the internals of libgcrypt to assert it's
correctness.


Cheers,

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Title:
  Blink SIP client segfaults with libgcrypt11 1.5.0-3ubuntu0.1

Status in “libgcrypt11” package in Ubuntu:
  Confirmed

Bug description:
  I'm not sure to which package I should report this, but I use the
  Blink SIP client (http://icanblink.com/) and noticed that it segfaults
  at startup if I have libgcrypt11 1.5.0-3ubuntu0.1 installed, but if I
  force the older version 1.5.0-3 Blink works ok.

  Blink is a Python app and I think I managed to find the line of Python
  code that causes the segfault. The line is 'from gnutls.crypto import
  X509Certificate, X509PrivateKey'. Here is what happens when I run it
  in the Python console:

  Python 2.7.3 (default, Apr 20 2012, 22:44:07) 
  [GCC 4.6.3] on linux2
  Type "help", "copyright", "credits" or "license" for more information.
  >>> from gnutls.crypto import X509Certificate, X509PrivateKey
  Segmentation fault (core dumped)

  I'm using 12.04, but I originally noticed the issue when I had 11.10
  and the proposed updates enabled. One day there were some updates that
  broke Blink and going through the updates I discovered that reverting
  libgcrypt fixed it.

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