[Bug 938116] Re: update-manager crashed with SIGSEGV in DescriptionList()

[Michael Vogt]

@Martin Mrazik (mrazik): when you say you get it 2/5 times, could you
please add the exact steps to reproduce?

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Title:
  update-manager crashed with SIGSEGV in DescriptionList()

Status in “apt” package in Ubuntu:
  Confirmed

Bug description:
  I was switching the mirror (software sources) in the Settings -> Ubuntu Software -> Download From
  I'm running 12.04

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.5
  ProcVersionSignature: Ubuntu 3.2.0-17.26-generic-pae 3.2.6
  Uname: Linux 3.2.0-17-generic-pae i686
  ApportVersion: 1.92-0ubuntu1
  Architecture: i386
  CrashCounter: 1
  Date: Tue Feb 21 21:01:55 2012
  ExecutablePath: /usr/bin/update-manager
  GsettingsChanges:
   com.ubuntu.update-manager first-run false
   com.ubuntu.update-manager launch-time 1329854490
   com.ubuntu.update-manager window-height 500
   com.ubuntu.update-manager window-width 600
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
  InterpreterPath: /usr/bin/python2.7
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python /usr/bin/update-manager
  SegvAnalysis:
   Segfault happened at: 0xb5c026b3 <_ZNK8pkgCache11VerIterator21TranslatedDescriptionEv+115>:	mov    0x14(%edx),%edx
   PC (0xb5c026b3) ok
   source "0x14(%edx)" (0x00ff3f53) not located in a known VMA region (needed readable region)!
   destination "%edx" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: update-manager
  StacktraceTop:
   pkgCache::VerIterator::TranslatedDescription() const () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
   ?? () from /usr/lib/python2.7/dist-packages/apt_pkg.so
   ?? ()
   ?? ()
   _PyAptObject_getattro(_object*, _object*) () from /usr/lib/python2.7/dist-packages/apt_pkg.so
  Title: update-manager crashed with SIGSEGV in pkgCache::VerIterator::TranslatedDescription()
  UpgradeStatus: Upgraded to precise on 2012-02-17 (4 days ago)
  UserGroups: adm admin cdrom dialout lp lpadmin plugdev sambashare

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