Unfortunately, the actual crash happens somewhere in Avahi or D-Bus and
the stacktraces do not show through which part of CUPS the crashing
piece of code was reached. Probably it is in a thread started by Avahi.
So it is far from simple to find the place in CUPS where an additional
NULL check is needed (this would be the real fix).

Therefore and keeping in mind that the CUPS broadcasting/browsing patch
will go away in Raring, I suggest the general blocking of cupsd crash
reports via /etc/apport/blacklist.d/cups. In addition, CUPS was very
stable all the time, so the chance of other crashes to happen is rather
low. So I think we can take the risk.

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https://bugs.launchpad.net/bugs/1086019

Title:
  cupsd crashes regularly (daily)

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