[Bug 1067056] Re: libapt-pkg.so segfaults during execution of plugininstall.py

[Jean-Baptiste Lallement]

Trace of "apt-get update" generated from inside /target after
installation crashed.

** Attachment added: "apt-get.trace"
   https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1067056/+attachment/3399360/+files/apt-get.trace

** Also affects: ubiquity (Ubuntu Quantal)
   Importance: Critical
       Status: Confirmed

** Changed in: ubiquity (Ubuntu Quantal)
    Milestone: None => ubuntu-12.10

** Summary changed:

- libapt-pkg.so segfaults during execution of plugininstall.py
+ apt-get crashed with SIGSEGV during installation in pkgCacheGenerator::NewVersion ()

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https://bugs.launchpad.net/bugs/1067056

Title:
  apt-get crashed with SIGSEGV during installation in
  pkgCacheGenerator::NewVersion ()

Status in “ubiquity” package in Ubuntu:
  Confirmed
Status in “ubiquity” source package in Quantal:
  Confirmed

Bug description:
  Quantal Desktop 20121015.2

  TEST CASE
  1. Enable "Free Software Only" in the boot menu
  2. Proceed with installation with the defaults

  ACTUAL RESULT
  Installation stops with 
  plugininstall.p[7036]: segfault at 7fc5aa977bf0 ip 00007fc5b40cf69d sp 00007fff71f815f0 error 6 in libapt-pkg.so.4.12.0[7fc5b403e000+11b000]

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: ubiquity 2.12.12
  ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
  Uname: Linux 3.5.0-17-generic x86_64
  ApportVersion: 2.6.1-0ubuntu3
  Architecture: amd64
  CasperVersion: 1.328
  Date: Mon Oct 15 22:02:13 2012
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity initrd=/casper/initrd.lz quiet splash --  apt-setup/restricted=false apt-setup/multiverse=false
  LiveMediaBuild: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121015.2)
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   LANG=en_US.UTF-8
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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