aptd crashed with SIGSEGV in File()

[General-Beck]

current updates

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: aptdaemon 0.45+bzr861-0ubuntu7
ProcVersionSignature: Ubuntu 3.5.0-17.27-generic 3.5.5
Uname: Linux 3.5.0-17-generic i686
ApportVersion: 2.6.1-0ubuntu1
Architecture: i386
Date: Mon Oct 8 09:23:20 2012
ExecutablePath: /usr/sbin/aptd
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
InterpreterPath: /usr/bin/python3.2mu
PackageArchitecture: all
ProcCmdline: /usr/bin/python3.2 /usr/sbin/aptd
ProcEnviron:

SegvAnalysis:
 Segfault happened at: 0xb6b354c8 <_ZN9pkgPolicy15GetCandidateVerERKN8pkgCache11PkgIteratorE+328>: imul $0x3c,(%edx),%eax
 PC (0xb6b354c8) ok
 source "$0x3c" ok
 destination "(%edx)" (0x683692e0) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: aptdaemon
StacktraceTop:
 pkgPolicy::GetCandidateVer(pkgCache::PkgIterator const&) () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
 pkgDepCache::Init(OpProgress*) () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
 typeinfo for PyCdromProgress () from /usr/lib/python3/dist-packages/apt_pkg.cpython-32mu.so
 pkgCacheFile::BuildDepCache(OpProgress*) () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
 pkgCacheFile::Open(OpProgress*, bool) () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
SysLog:
 Oct 8 09:23:19 Beck-notebook AptDaemon: INFO: Initializing daemon
 Oct 8 09:23:19 Beck-notebook AptDaemon: INFO: UpgradeSystem() was called with safe mode: 1
 Oct 8 09:23:19 Beck-notebook AptDaemon.Trans: INFO: Queuing transaction /org/debian/apt/transaction/605bc7167eba459db856a3f1d996b155
 Oct 8 09:23:19 Beck-notebook AptDaemon.Worker: INFO: Simulating trans: /org/debian/apt/transaction/605bc7167eba459db856a3f1d996b155
Title: aptd crashed with SIGSEGV in pkgPolicy::GetCandidateVer()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 File (this=<optimized out>) at ../build/include/apt-pkg/cacheiterators.h:394
 pkgPolicy::GetCandidateVer (this=0x9c16348, Pkg=...) at policy.cc:180
 GetCandidateVer (Pkg=..., this=<optimized out>) at ../build/include/apt-pkg/depcache.h:355
 pkgDepCache::Init (this=0x9c16188, Prog=0xbf80498c) at depcache.cc:149
 typeinfo for PyCdromProgress () from /tmp/tmpjUXp4z/usr/lib/python3/dist-packages/apt_pkg.cpython-32mu.so

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Julian Andres Klode (juliank)]

Thanks for your bug report. This seems to be a broken cache file, and we believe that it was either a hardware bug or a bug fixed in recent APT versions that caused it. I am thus closing it.