[Bug 858733] Re: aptd crashed with SIGSEGV in pkgDepCache::Update()

[Julian Andres Klode]

Either a bug in the connection between aptdaemon's progress handler and
python-apt, or the cache file is broken. The first option seems
unlikely, as it does not turn up in the stacktrace.

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Title:
  aptd crashed with SIGSEGV in pkgDepCache::Update()

Status in “python-apt” package in Ubuntu:
  New

Bug description:
  Just got this in a Unity 2D session in Oneiric.

  ProblemType: Crash
  DistroRelease: Ubuntu 11.10
  Package: aptdaemon 0.43+bzr697
  Uname: Linux 3.0.4-030004-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 1.23-0ubuntu1
  Architecture: amd64
  Date: Sun Sep 25 18:20:42 2011
  DesktopFile: /usr/share/aptdaemon/aptdaemon.desktop
  ExecutablePath: /usr/sbin/aptd
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100406.1)
  InterpreterPath: /usr/bin/python2.7
  PackageArchitecture: all
  ProcCmdline: /usr/bin/python /usr/sbin/aptd
  ProcEnviron:
   
  SegvAnalysis:
   Segfault happened at: 0x7fd351928f03 <_ZN11pkgDepCache6UpdateEP10OpProgress+451>:	mov    0x14(%rax),%r14d
   PC (0x7fd351928f03) ok
   source "0x14(%rax)" (0x7fd34e26d5e8) not located in a known VMA region (needed readable region)!
   destination "%r14d" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: aptdaemon
  StacktraceTop:
   pkgDepCache::Update(OpProgress*) () from /usr/lib/libapt-pkg.so.4.11
   pkgDepCache::Init(OpProgress*) () from /usr/lib/libapt-pkg.so.4.11
   pkgCacheFile::BuildDepCache(OpProgress*) () from /usr/lib/libapt-pkg.so.4.11
   pkgCacheFile::Open(OpProgress*, bool) () from /usr/lib/libapt-pkg.so.4.11
   ?? () from /usr/lib/python2.7/dist-packages/apt_pkg.so
  Title: aptd crashed with SIGSEGV in pkgDepCache::Update()
  UpgradeStatus: Upgraded to oneiric on 2011-09-20 (4 days ago)
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