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Thread 1 (Thread 5898):
#0  0x00cdd90f in pkgCache::FindPkg(std::string const&) ()
   from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#1  0x00d0cabf in pkgCacheGenerator::NewPackage(pkgCache::PkgIterator&, std::string const&) () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#2  0x00d0d7e3 in pkgCacheGenerator::MergeList(pkgCacheGenerator::ListParser&, pkgCache::VerIterator*) () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#3  0x00d4537f in debStatusIndex::Merge(pkgCacheGenerator&, OpProgress&) const
    () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#4  0x00d0d12b in ?? () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#5  0x00d10469 in pkgMakeStatusCache(pkgSourceList&, OpProgress&, MMap**, bool) () from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#6  0x00d05ea6 in pkgCacheFile::BuildCaches(OpProgress&, bool) ()
   from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#7  0x00d05ff4 in pkgCacheFile::Open(OpProgress&, bool) ()
   from /usr/lib/libapt-pkg-libc6.10-6.so.4.8
No symbol table info available.
#8  0x0042bca6 in TmpGetCache(_object*, _object*) ()
   from /usr/lib/python2.6/dist-packages/apt_pkg.so
No symbol table info available.
#9  0x080dc0d0 in PyEval_EvalFrameEx ()
No symbol table info available.
#10 0x080dddf2 in PyEval_EvalCodeEx ()
No symbol table info available.
#11 0x080dc1b4 in PyEval_EvalFrameEx ()
No symbol table info available.
#12 0x080dddf2 in PyEval_EvalCodeEx ()
No symbol table info available.
#13 0x080ddef7 in PyEval_EvalCode ()
No symbol table info available.
#14 0x080faa1f in PyRun_FileExFlags ()
No symbol table info available.
#15 0x080fac12 in PyRun_SimpleFileExFlags ()
No symbol table info available.
#16 0x0805c8d8 in Py_Main ()
No symbol table info available.
#17 0x0805baeb in main ()
No symbol table info available.