.
Thread 1 (Thread 0xb74a26c0 (LWP 11023)):
#0  0xb6b354c8 in pkgPolicy::GetCandidateVer(pkgCache::PkgIterator const&) () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#1  0xb6b03e84 in pkgDepCache::Init(OpProgress*) () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#2  0xb6c3ccc0 in typeinfo for PyCdromProgress () from /usr/lib/python3/dist-packages/apt_pkg.cpython-32mu.so
No symbol table info available.
#3  0xb6b32be9 in pkgCacheFile::BuildDepCache(OpProgress*) () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#4  0xb6b32c7c in pkgCacheFile::Open(OpProgress*, bool) () from /usr/lib/i386-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#5  0xb6c151fb in ?? () from /usr/lib/python3/dist-packages/apt_pkg.cpython-32mu.so
No symbol table info available.
#6  0x0810814a in ?? ()
No symbol table info available.
#7  0x080eef21 in PyObject_Call ()
No symbol table info available.
#8  0x080beecc in PyEval_EvalFrameEx ()
No symbol table info available.
#9  0x080b9a83 in PyEval_EvalCodeEx ()
No symbol table info available.
#10 0x080bf0aa in PyEval_EvalFrameEx ()
No symbol table info available.
#11 0x080b9a83 in PyEval_EvalCodeEx ()
No symbol table info available.
#12 0x080b96a5 in ?? ()
No symbol table info available.
#13 0x080eef21 in PyObject_Call ()
No symbol table info available.
#14 0x080ef35c in ?? ()
No symbol table info available.
#15 0x080eef21 in PyObject_Call ()
No symbol table info available.
#16 0x080d5d3a in ?? ()
No symbol table info available.
#17 0x081081a3 in ?? ()
No symbol table info available.
#18 0x080eef21 in PyObject_Call ()
No symbol table info available.
#19 0x080beecc in PyEval_EvalFrameEx ()
No symbol table info available.
#20 0x080b9a83 in PyEval_EvalCodeEx ()
No symbol table info available.
#21 0x080bf0aa in PyEval_EvalFrameEx ()
No symbol table info available.
#22 0x080bebf8 in PyEval_EvalFrameEx ()
No symbol table info available.
#23 0x080b9a83 in PyEval_EvalCodeEx ()
No symbol table info available.
#24 0x080b96a5 in ?? ()
No symbol table info available.
#25 0x080eef21 in PyObject_Call ()
No symbol table info available.
#26 0x080ef35c in ?? ()
No symbol table info available.
#27 0x080eef21 in PyObject_Call ()
No symbol table info available.
#28 0x08106c9d in PyEval_CallObjectWithKeywords ()
No symbol table info available.
#29 0x0816663f in PyObject_CallObject ()
No symbol table info available.
#30 0xb735a1bb in _pyglib_handler_marshal () from /usr/lib/libpyglib-gi-2.0-python3.2.so.0
No symbol table info available.
#31 0xb6f4cc30 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#32 0xb6f4f9e3 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#33 0xb6f4fd80 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#34 0xb6f501db in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#35 0xb73497b8 in ?? () from /usr/lib/python3/dist-packages/gi/_glib/_glib.cpython-32mu.so
No symbol table info available.
#36 0x080bf0fc in PyEval_EvalFrameEx ()
No symbol table info available.
#37 0x080bebf8 in PyEval_EvalFrameEx ()
No symbol table info available.
#38 0x080bebf8 in PyEval_EvalFrameEx ()
No symbol table info available.
#39 0x080b9a83 in PyEval_EvalCodeEx ()
No symbol table info available.
#40 0x0812f1af in PyEval_EvalCode ()
No symbol table info available.
#41 0x08124cb5 in ?? ()
No symbol table info available.
#42 0x0805dc1b in PyRun_FileExFlags ()
No symbol table info available.
#43 0x0805dfc0 in PyRun_SimpleFileExFlags ()
No symbol table info available.
#44 0x0809cbe9 in Py_Main ()
No symbol table info available.
#45 0x080a811c in main ()
No symbol table info available.