[Bug 1506971] Re: ubuntu-release-upgrader bugs regarding dpkg crashes lack useful information

[Brian Murray]

Looking at the ubuntu-release-upgrader package hook there is the
following code:

48     if problem_type == 'Crash':
 49         tmpdir = re.compile('ubuntu-release-upgrader-\w+')
 50         tb = report.get("Traceback", None)
 51         if tb: 
 52             dupe_sig = ''
 53             for line in tb.splitlines():
 54                 scrub_line = tmpdir.sub('ubuntu-release-upgrader-tmpdir', line)
 55                 dupe_sig += scrub_line + '\n'
 56             report["DuplicateSignature"] = dupe_sig

There is nothing abnormal there, scrubbing is just to replace the tmp
path in which the ubuntu-release-upgrader ones with one that is generic
enough so that upgrades from different systems will have not a unique
path in the traceback.

** Tags added: rls-x-incoming trusty vivid wily

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https://bugs.launchpad.net/bugs/1506971

Title:
  ubuntu-release-upgrader bugs regarding dpkg crashes lack useful
  information

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  If we look at the following problem in the Ubuntu Error Tracker we can
  see hundreds of issues with the following duplicate signature -
  "SystemError ( E) Sub-process /usr/bin/dpkg returned an error code
  (1)".

  https://errors.ubuntu.com/problem/d2dd8ddd68b15cbf2c7a6e1dea241adf4a051ac0

  If we look at any specific instance of that problem
  (https://errors.ubuntu.com/oops/887de81c-7421-11e5-a1b7-fa163e4ccdf2)
  we see nothing more informative. This needs to be sorted out so that
  we don't keep binning crashes in that bucket and can create some
  actionable problems.

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