Comment 3 for bug 1039493

You can find attached the valgrind output. There is a reference to the segfault at the end of the file.

==7545== Process terminating with default action of signal 11 (SIGSEGV)
==7545== Access not within mapped region at address 0x8
==7545== at 0xAC9BCB7: igraphmodule_Graph_vertex_attributes (graphobject.c:8760)
==7545== by 0x4A7D97: PyEval_EvalFrameEx (in /usr/bin/python2.6)
==7545== by 0x4A9670: PyEval_EvalCodeEx (in /usr/bin/python2.6)
==7545== by 0x4A7808: PyEval_EvalFrameEx (in /usr/bin/python2.6)
==7545== by 0x4A9670: PyEval_EvalCodeEx (in /usr/bin/python2.6)
==7545== by 0x53771C: ??? (in /usr/bin/python2.6)
==7545== by 0x41F0C6: PyObject_Call (in /usr/bin/python2.6)
==7545== by 0x427DFE: ??? (in /usr/bin/python2.6)
==7545== by 0x41F0C6: PyObject_Call (in /usr/bin/python2.6)
==7545== by 0x477BFE: ??? (in /usr/bin/python2.6)
==7545== by 0x46F47E: ??? (in /usr/bin/python2.6)
==7545== by 0x41F0C6: PyObject_Call (in /usr/bin/python2.6)
==7545== If you believe this happened as a result of a stack
==7545== overflow in your program's main thread (unlikely but
==7545== possible), you can try to increase the size of the
==7545== main thread stack using the --main-stacksize= flag.
==7545== The main thread stack size used in this run was 8388608.