[Bug 1058884] Re: do-release-upgrade crashed with EOFError in /usr/lib/ubuntu-release-upgrader/check-new-release: EOF read where not expected

[Barry Warsaw]

Actually: http://bugs.python.org/issue16384

And I think I'm wrong.  pyc files are written atomically in Python 3.3,
but afaict that's not the case in Python 3.2.  The import machinery was
rewritten in Python for 3.3.  So this could be a race condition for
earlier Pythons.

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: Incomplete => Triaged

** Bug watch added: Python Roundup #16384
   http://bugs.python.org/issue16384

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https://bugs.launchpad.net/bugs/1058884

Title:
  do-release-upgrade crashed with EOFError in /usr/lib/ubuntu-release-
  upgrader/check-new-release: EOF read where not expected

Status in “ubuntu-release-upgrader” package in Ubuntu:
  Triaged

Bug description:
  yeay for automatic bug reporting!

  this is happening pretty regular, I have no idea what's triggering it,
  a cron job maybe?

  if I run it manually, it get:

  ~$ sudo do-release-upgrade 
  Traceback (most recent call last):
    File "/usr/bin/do-release-upgrade", line 8, in <module>
      from DistUpgrade.DistUpgradeVersion import VERSION
  EOFError: EOF read where not expected

  ProblemType: Crash
  DistroRelease: Ubuntu 12.10
  Package: ubuntu-release-upgrader-core 1:0.181
  ProcVersionSignature: Ubuntu 3.5.0-16.25-generic 3.5.4
  Uname: Linux 3.5.0-16-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 2.5.3-0ubuntu1
  Architecture: amd64
  Date: Sat Sep 29 15:11:46 2012
  ExecutablePath: /usr/bin/do-release-upgrade
  InterpreterPath: /usr/bin/python3.2mu
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python3 /usr/lib/ubuntu-release-upgrader/check-new-release -q
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
  PythonArgs: ['/usr/lib/ubuntu-release-upgrader/check-new-release', '-q']
  SourcePackage: ubuntu-release-upgrader
  Title: do-release-upgrade crashed with EOFError in /usr/lib/ubuntu-release-upgrader/check-new-release: EOF read where not expected
  Traceback:
   Traceback (most recent call last):
     File "/usr/lib/ubuntu-release-upgrader/check-new-release", line 8, in <module>
       from DistUpgrade.DistUpgradeVersion import VERSION
   EOFError: EOF read where not expected
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  VarLogDistupgradeAptclonesystemstate.tar.gz: Error: command ['cat', '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'] failed with exit code 1: cat: /var/log/dist-upgrade/apt-clone_system_state.tar.gz: No such file or directory

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