aptd crashed with SIGSEGV in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::compare()

[Stephan]

Checking for updates via update-manager fails

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: aptdaemon 0.43+bzr662-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-6.7-generic 3.0.0-rc7
Uname: Linux 3.0.0-6-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
CrashCounter: 1
Date: Sat Jul 23 15:58:39 2011
ExecutablePath: /usr/sbin/aptd
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110721)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/sbin/aptd
ProcEnviron:

SegvAnalysis:
 Segfault happened at: 0x7fcfca1bc7bf: pcmpeqb (%rdi),%xmm1
 PC (0x7fcfca1bc7bf) ok
 source "(%rdi)" (0x7fcfbead9630) not located in a known VMA region (needed readable region)!
 destination "%xmm1" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: aptdaemon
StacktraceTop:
 ?? () from /lib/x86_64-linux-gnu/libc.so.6
 std::basic_string<char, std::char_traits<char>, std::allocator<char> >::compare(char const*) const () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
 pkgCacheGenerator::FinishCache(OpProgress*) () from /usr/lib/libapt-pkg.so.4.10
 pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/libapt-pkg.so.4.10
 pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/libapt-pkg.so.4.10
Title: aptd crashed with SIGSEGV in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::compare()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 __strlen_sse42 () at ../sysdeps/x86_64/multiarch/strlen-sse4.S:32
 std::basic_string<char, std::char_traits<char>, std::allocator<char> >::compare(char const*) const () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
 pkgCacheGenerator::MergeList(pkgCacheGenerator::ListParser&, pkgCache::VerIterator*) () from /usr/lib/libapt-pkg.so.4.10
 ?? ()
 ?? ()

[Robert Roth (evfool)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug #812862, so it 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. Feel free to continue to report any other bugs you may find.
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