#0  0x00007f25e0cbb2f8 in Xapian::Weight::Internal::accumulate_stats(Xapian::Database::Internal const&, Xapian::RSet const&) () from /usr/lib/libxapian.so.22
No symbol table info available.
#1  0x00007f25e0c876d7 in ?? () from /usr/lib/libxapian.so.22
No symbol table info available.
#2  0x00007f25e0c8b229 in ?? () from /usr/lib/libxapian.so.22
No symbol table info available.
#3  0x00007f25e0b82c34 in Xapian::Enquire::Internal::get_mset(unsigned int, unsigned int, unsigned int, Xapian::RSet const*, Xapian::MatchDecider const*, Xapian::MatchDecider const*) const () from /usr/lib/libxapian.so.22
No symbol table info available.
#4  0x00007f25e0b82f5e in Xapian::Enquire::get_mset(unsigned int, unsigned int, unsigned int, Xapian::RSet const*, Xapian::MatchDecider const*) const () from /usr/lib/libxapian.so.22
No symbol table info available.
#5  0x00007f25e0f8156b in ?? () from /usr/lib/python2.7/dist-packages/xapian/_xapian.so
No symbol table info available.
#6  0x00000000004bae70 in PyEval_EvalFrameEx ()
No symbol table info available.
#7  0x00000000004bce3d in PyEval_EvalCodeEx ()
No symbol table info available.
#8  0x0000000000448f0f in ?? ()
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#9  0x000000000041ad3a in PyObject_Call ()
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#10 0x000000000043078e in ?? ()
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#11 0x000000000041ad3a in PyObject_Call ()
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#12 0x00000000004b5e66 in PyEval_CallObjectWithKeywords ()
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#13 0x00007f25e3de961b in _pyglib_handler_marshal () from /usr/lib/libpyglib-2.0-python2.7.so.0
No symbol table info available.
#14 0x00007f25e4030e5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#15 0x00007f25e4031658 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#16 0x00007f25e4031b92 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#17 0x00007f25e42ecea1 in ?? () from /usr/lib/python2.7/dist-packages/glib/_glib.so
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#18 0x00000000004b7204 in PyEval_EvalFrameEx ()
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#19 0x00000000004b6e67 in PyEval_EvalFrameEx ()
No symbol table info available.
#20 0x00000000004bce3d in PyEval_EvalCodeEx ()
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#21 0x00000000004bd922 in PyEval_EvalCode ()
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#22 0x00000000004dcd42 in ?? ()
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#23 0x00000000004dd904 in PyRun_FileExFlags ()
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#24 0x00000000004de40e in PyRun_SimpleFileExFlags ()
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#25 0x00000000004ee80d in Py_Main ()
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#26 0x00007f25e4bfb30d in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
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#27 0x000000000041cb79 in _start ()
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