[Bug 930845] Re: apt-get crashed with SIGSEGV in pkgDepCache::CheckDep()

[Apport retracing service]

*** This bug is a duplicate of bug 857504 ***
    https://bugs.launchpad.net/bugs/857504

Thank you for taking the time to report this crash and helping to make
this software better.  This particular crash has already been reported
and is a duplicate of bug #857504, so is being marked as such.  Please
look at the other bug report to see if there is any missing information
that you can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

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** Visibility changed to: Public

** This bug has been marked a duplicate of private bug 857504

** Visibility changed to: Public

** Tags removed: need-amd64-retrace

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https://bugs.launchpad.net/bugs/930845

Title:
  apt-get crashed with SIGSEGV in pkgDepCache::CheckDep()

Status in “apt” package in Ubuntu:
  New

Bug description:
  Get this error on start of Unity

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: apt 0.8.16~exp12ubuntu3
  Uname: Linux 3.2.1-030201-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 1.91-0ubuntu1
  Architecture: amd64
  Date: Sun Feb 12 03:33:04 2012
  DuplicateOf: https://bugs.launchpad.net/bugs/869348
  ExecutablePath: /usr/bin/apt-get
  ProcCmdline: apt-get purge fglrx*
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   LANGUAGE=en_GB:en
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7f0ba3590d3f <_ZN11pkgDepCache8CheckDepEN8pkgCache11DepIteratorEiRNS0_11PkgIteratorE+975>:	mov    0x28(%rax),%eax
   PC (0x7f0ba3590d3f) ok
   source "0x28(%rax)" (0x7f0ba5400488) not located in a known VMA region (needed readable region)!
   destination "%eax" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: apt
  StacktraceTop:
   pkgDepCache::CheckDep(pkgCache::DepIterator, int, pkgCache::PkgIterator&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
   pkgDepCache::DependencyState(pkgCache::DepIterator&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
   pkgDepCache::Update(OpProgress*) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
   pkgDepCache::Init(OpProgress*) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
   pkgCacheFile::BuildDepCache(OpProgress*) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
  Title: apt-get crashed with SIGSEGV in pkgDepCache::CheckDep()
  UpgradeStatus: Upgraded to precise on 2012-02-12 (0 days ago)
  UserGroups:

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