[Bug 1058884] Re: Race condition in py_compile corrupts pyc files

[Barry Warsaw]

** Summary changed:

- do-release-upgrade crashed with EOFError in /usr/lib/ubuntu-release-upgrader/check-new-release: EOF read where not expected
+ Race condition in py_compile corrupts pyc files

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

Title:
  Race condition in py_compile corrupts pyc files

Status in “python2.7” package in Ubuntu:
  In Progress
Status in “python3.3” package in Ubuntu:
  In Progress

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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