[Bug 983062] Re: apt-get crashed with SIGSEGV in pkgCache::ReMap()

[Christopher Forster]

sudo apt-get update
apt-get: error while loading shared libraries: /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12: file too short

sudo update-manager
Traceback (most recent call last):
  File "/usr/bin/update-manager", line 33, in <module>
    from UpdateManager.UpdateManager import UpdateManager
  File "/usr/lib/python2.7/dist-packages/UpdateManager/UpdateManager.py", line 39, in <module>
    import apt_pkg
ImportError: /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12: fil för kort
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/apport_python_hook.py", line 64, in apport_excepthook
    from apport.fileutils import likely_packaged, get_recent_crashes
  File "/usr/lib/python2.7/dist-packages/apport/__init__.py", line 1, in <module>
    from apport.report import Report
  File "/usr/lib/python2.7/dist-packages/apport/report.py", line 20, in <module>
    import apport.fileutils
  File "/usr/lib/python2.7/dist-packages/apport/fileutils.py", line 22, in <module>
    from apport.packaging_impl import impl as packaging
  File "/usr/lib/python2.7/dist-packages/apport/packaging_impl.py", line 20, in <module>
    import apt
  File "/usr/lib/python2.7/dist-packages/apt/__init__.py", line 21, in <module>
    import apt_pkg
ImportError: /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12: fil för kort

Original exception was:
Traceback (most recent call last):
  File "/usr/bin/update-manager", line 33, in <module>
    from UpdateManager.UpdateManager import UpdateManager
  File "/usr/lib/python2.7/dist-packages/UpdateManager/UpdateManager.py", line 39, in <module>
    import apt_pkg
ImportError: /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12: fil för kort

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https://bugs.launchpad.net/bugs/983062

Title:
  apt-get crashed with SIGSEGV in pkgCache::ReMap()

Status in “apt” package in Ubuntu:
  Confirmed

Bug description:
  This error occurred in the croned apt-get update check

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: apt 0.8.16~exp12ubuntu8
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  Uname: Linux 3.2.0-23-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu3
  Architecture: amd64
  Date: Mon Apr 16 07:35:36 2012
  ExecutablePath: /usr/bin/apt-get
  InstallationMedia: This
  ProcCmdline: apt-get check -f -qq
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   SHELL=/bin/sh
  SegvAnalysis:
   Segfault happened at: 0x7f6c30329ae4 <_ZN8pkgCache5ReMapERKb+116>:	cmp    %rcx,(%rdi)
   PC (0x7f6c30329ae4) ok
   source "%rcx" ok
   destination "(%rdi)" (0xffffffffffffffff) not located in a known VMA region (needed writable region)!
  SegvReason: writing unknown VMA
  Signal: 11
  SourcePackage: apt
  StacktraceTop:
   pkgCache::ReMap(bool const&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
   pkgCache::pkgCache(MMap*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
   ?? () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
   pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
   pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
  Title: apt-get crashed with SIGSEGV in pkgCache::ReMap()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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