Comment 6 for bug 436165

Still occurs on 10.4 with all patches applied. I'd tend to blame hippocanvas and/or python-cairo:

#0 0x00882fac in PycairoXlibSurface_Type () from /usr/lib/pymodules/python2.6/cairo/_cairo.so
#1 0x00b6a009 in ?? () from /usr/lib/python2.6/dist-packages/hippo.so
#2 0x080dc0d0 in call_function (f=0xa0878f4, throwflag=0) at ../Python/ceval.c:3706
#3 PyEval_EvalFrameEx (f=0xa0878f4, throwflag=0) at ../Python/ceval.c:2389
#4 0x080dd384 in fast_function (f=0x9ea2164, throwflag=0) at ../Python/ceval.c:3792
#5 call_function (f=0x9ea2164, throwflag=0) at ../Python/ceval.c:3727
#6 PyEval_EvalFrameEx (f=0x9ea2164, throwflag=0) at ../Python/ceval.c:2389
#7 0x080dddf2 in PyEval_EvalCodeEx (co=0x9afec80, globals=0x9b2b35c, locals=0x0, args=0x9ea213c, argcount=1,
    kws=0x9ea2140, kwcount=0, defs=0x9b517d8, defcount=2, closure=0x0) at ../Python/ceval.c:2968
#8 0x080dc1b4 in fast_function (f=0x9ea1fe4, throwflag=0) at ../Python/ceval.c:3802
#9 call_function (f=0x9ea1fe4, throwflag=0) at ../Python/ceval.c:3727
#10 PyEval_EvalFrameEx (f=0x9ea1fe4, throwflag=0) at ../Python/ceval.c:2389
#11 0x080dd384 in fast_function (f=0x9ea17b4, throwflag=0) at ../Python/ceval.c:3792
#12 call_function (f=0x9ea17b4, throwflag=0) at ../Python/ceval.c:3727
#13 PyEval_EvalFrameEx (f=0x9ea17b4, throwflag=0) at ../Python/ceval.c:2389
#14 0x080dd384 in fast_function (f=0xa06d194, throwflag=0) at ../Python/ceval.c:3792
#15 call_function (f=0xa06d194, throwflag=0) at ../Python/ceval.c:3727
#16 PyEval_EvalFrameEx (f=0xa06d194, throwflag=0) at ../Python/ceval.c:2389
#17 0x080dddf2 in PyEval_EvalCodeEx (co=0x9824458, globals=0x988846c, locals=0x0, args=0x9e4c998, argcount=3, kws=0x0,
    kwcount=0, defs=0x0, defcount=0, closure=0x9d908cc) at ../Python/ceval.c:2968
#18 0x0816014c in function_call (func=0x9d95294, arg=0x9e4c98c, kw=0x0) at ../Objects/funcobject.c:524
#19 0x0806120a in PyObject_Call (func=0x9d95294, arg=0x9e4c98c, kw=0x0) at ../Objects/abstract.c:2492
#20 0x080684ac in instancemethod_call (func=0x9e54644, arg=0x9e4c98c, kw=0x0) at ../Objects/classobject.c:2579
#21 0x08062577 in PyObject_Call (func=0x9e54644, arg=0xa077770, kw=<value optimized out>) at ../Objects/abstract.c:2492
#22 0x08065905 in call_function_tail (o=0x9e5d0a4, name=0x327bc1 "do_set_property", format=0x327b01 "OO")
    at ../Objects/abstract.c:2524
#23 _PyObject_CallMethod_SizeT (o=0x9e5d0a4, name=0x327bc1 "do_set_property", format=0x327b01 "OO")
    at ../Objects/abstract.c:2640
---Type <return> to continue, or q <return> to quit---
#24 0x0031a4ed in ?? () from /usr/lib/pymodules/python2.6/gtk-2.0/gobject/_gobject.so
#25 0x00cb71ef in g_object_set_property () from /usr/lib/libgobject-2.0.so.0
#26 0x0031ed35 in ?? () from /usr/lib/pymodules/python2.6/gtk-2.0/gobject/_gobject.so
#27 0x0031f0fc in ?? () from /usr/lib/pymodules/python2.6/gtk-2.0/gobject/_gobject.so
#28 0x080dc0d0 in call_function (f=0x32c4e0, throwflag=0) at ../Python/ceval.c:3706
#29 PyEval_EvalFrameEx (f=0x32c4e0, throwflag=0) at ../Python/ceval.c:2389
#30 0x080dddf2 in PyEval_EvalCodeEx (co=0x988f188, globals=0x98a7824, locals=0x0, args=0x9e65c68, argcount=3, kws=0x0,
    kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:2968
#31 0x0816014c in function_call (func=0x98a6994, arg=0x9e65c5c, kw=0x0) at ../Objects/funcobject.c:524
#32 0x0806120a in PyObject_Call (func=0x98a6994, arg=0x9e65c5c, kw=0x0) at ../Objects/abstract.c:2492
#33 0x080684ac in instancemethod_call (func=0x9e67414, arg=0x9e65c5c, kw=0x0) at ../Objects/classobject.c:2579
#34 0x0806120a in PyObject_Call (func=0x9e67414, arg=0x9e46cec, kw=0x0) at ../Objects/abstract.c:2492
#35 0x080b3493 in call_method (o=0x9b4674c, name=0x817ec95 "__set__", nameobj=0x826a534, format=0x817ec90 "(OO)")
    at ../Objects/typeobject.c:1244
#36 0x080b361b in slot_tp_descr_set (self=0xa077770, target=0xa082454, value=0x881460) at ../Objects/typeobject.c:5621
#37 0x08093602 in PyObject_GenericSetAttr (obj=0x9e5d0a4, name=0x9ae8c40, value=0x9e6d02c) at ../Objects/object.c:1485
#38 0x00322050 in ?? () from /usr/lib/pymodules/python2.6/gtk-2.0/gobject/_gobject.so
#39 0x080921e5 in PyObject_SetAttr (v=0x32bff4, name=0x9ae8c40, value=0x9e5c604) at ../Objects/object.c:1252
#40 0x080da522 in PyEval_EvalFrameEx (f=0xa044fcc, throwflag=0) at ../Python/ceval.c:1841
#41 0x080dd384 in fast_function (f=0xa037194, throwflag=0) at ../Python/ceval.c:3792
#42 call_function (f=0xa037194, throwflag=0) at ../Python/ceval.c:3727
#43 PyEval_EvalFrameEx (f=0xa037194, throwflag=0) at ../Python/ceval.c:2389
#44 0x080dd384 in fast_function (f=0xa0714bc, throwflag=0) at ../Python/ceval.c:3792
#45 call_function (f=0xa0714bc, throwflag=0) at ../Python/ceval.c:3727
#46 PyEval_EvalFrameEx (f=0xa0714bc, throwflag=0) at ../Python/ceval.c:2389
#47 0x080dddf2 in PyEval_EvalCodeEx (co=0x9824458, globals=0x988846c, locals=0x0, args=0x9e4cec0, argcount=3, kws=0x0,
    kwcount=0, defs=0x0, defcount=0, closure=0x9d908cc) at ../Python/ceval.c:2968
#48 0x0816014c in function_call (func=0x9d95294, arg=0x9e4ceb4, kw=0x0) at ../Objects/funcobject.c:524
---Type <return> to continue, or q <return> to quit---
#49 0x0806120a in PyObject_Call (func=0x9d95294, arg=0x9e4ceb4, kw=0x0) at ../Objects/abstract.c:2492
#50 0x080684ac in instancemethod_call (func=0x9e673ec, arg=0x9e4ceb4, kw=0x0) at ../Objects/classobject.c:2579
#51 0x08062577 in PyObject_Call (func=0x9e673ec, arg=0xa077770, kw=<value optimized out>) at ../Objects/abstract.c:2492
#52 0x08065905 in call_function_tail (o=0x9e5d0a4, name=0x327bc1 "do_set_property", format=0x327b01 "OO")
    at ../Objects/abstract.c:2524
#53 _PyObject_CallMethod_SizeT (o=0x9e5d0a4, name=0x327bc1 "do_set_property", format=0x327b01 "OO")
    at ../Objects/abstract.c:2640
#54 0x0031a4ed in ?? () from /usr/lib/pymodules/python2.6/gtk-2.0/gobject/_gobject.so
#55 0x00cb71ef in g_object_set_property () from /usr/lib/libgobject-2.0.so.0
#56 0x0031ed35 in ?? () from /usr/lib/pymodules/python2.6/gtk-2.0/gobject/_gobject.so
#57 0x0031f863 in ?? () from /usr/lib/pymodules/python2.6/gtk-2.0/gobject/_gobject.so
#58 0x080921e5 in PyObject_SetAttr (v=0x32bff4, name=0x9ae6a98, value=0xbfa7656c) at ../Objects/object.c:1252
#59 0x080da522 in PyEval_EvalFrameEx (f=0xa04150c, throwflag=0) at ../Python/ceval.c:1841
#60 0x080dd384 in fast_function (f=0x9e8d3ec, throwflag=0) at ../Python/ceval.c:3792
#61 call_function (f=0x9e8d3ec, throwflag=0) at ../Python/ceval.c:3727
#62 PyEval_EvalFrameEx (f=0x9e8d3ec, throwflag=0) at ../Python/ceval.c:2389
#63 0x080dd384 in fast_function (f=0xa073664, throwflag=0) at ../Python/ceval.c:3792
#64 call_function (f=0xa073664, throwflag=0) at ../Python/ceval.c:3727
#65 PyEval_EvalFrameEx (f=0xa073664, throwflag=0) at ../Python/ceval.c:2389
#66 0x080dd384 in fast_function (f=0xa06dcfc, throwflag=0) at ../Python/ceval.c:3792
#67 call_function (f=0xa06dcfc, throwflag=0) at ../Python/ceval.c:3727
#68 PyEval_EvalFrameEx (f=0xa06dcfc, throwflag=0) at ../Python/ceval.c:2389
#69 0x080dddf2 in PyEval_EvalCodeEx (co=0x9ae57b8, globals=0x9ae446c, locals=0x0, args=0x9e46d58, argcount=2, kws=0x0,
    kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:2968
#70 0x0816014c in function_call (func=0x9da833c, arg=0x9e46d4c, kw=0x0) at ../Objects/funcobject.c:524
#71 0x0806120a in PyObject_Call (func=0x9da833c, arg=0x9e46d4c, kw=0x0) at ../Objects/abstract.c:2492
#72 0x080daf19 in ext_do_call (f=0xa040374, throwflag=0) at ../Python/ceval.c:4019
#73 PyEval_EvalFrameEx (f=0xa040374, throwflag=0) at ../Python/ceval.c:2429
---Type <return> to continue, or q <return> to quit---
#74 0x080dddf2 in PyEval_EvalCodeEx (co=0x9ad0698, globals=0x9a06f0c, locals=0x0, args=0x9e4df78, argcount=1, kws=0x0,
    kwcount=0, defs=0x0, defcount=0, closure=0x9e42914) at ../Python/ceval.c:2968
#75 0x0816014c in function_call (func=0x9e4179c, arg=0x9e4df6c, kw=0x0) at ../Objects/funcobject.c:524
#76 0x08062577 in PyObject_Call (func=0x9e4179c, arg=0xa077770, kw=<value optimized out>) at ../Objects/abstract.c:2492
#77 0x080645be in PyObject_CallFunctionObjArgs (callable=0x9e4179c) at ../Objects/abstract.c:2723
#78 0x00abb884 in ?? () from /usr/lib/pymodules/python2.6/_dbus_bindings.so
#79 0x007c6791 in ?? () from /lib/libdbus-1.so.3
#80 0x007b63f6 in ?? () from /lib/libdbus-1.so.3
#81 0x007b89b2 in dbus_connection_dispatch () from /lib/libdbus-1.so.3
#82 0x00b4775d in ?? () from /usr/lib/libdbus-glib-1.so.2
#83 0x009dde88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#84 0x009e1730 in ?? () from /lib/libglib-2.0.so.0
#85 0x009e1b9f in g_main_loop_run () from /lib/libglib-2.0.so.0
#86 0x010d6419 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#87 0x00ed5028 in ?? () from /usr/lib/pymodules/python2.6/gtk-2.0/gtk/_gtk.so
#88 0x080dbfd5 in call_function (f=0x9e234ec, throwflag=0) at ../Python/ceval.c:3690
#89 PyEval_EvalFrameEx (f=0x9e234ec, throwflag=0) at ../Python/ceval.c:2389
#90 0x080dd384 in fast_function (f=0x97ea0a4, throwflag=0) at ../Python/ceval.c:3792
#91 call_function (f=0x97ea0a4, throwflag=0) at ../Python/ceval.c:3727
#92 PyEval_EvalFrameEx (f=0x97ea0a4, throwflag=0) at ../Python/ceval.c:2389
#93 0x080dddf2 in PyEval_EvalCodeEx (co=0xb7880530, globals=0xb78c61c4, locals=0xb78c61c4, args=0x0, argcount=0, kws=0x0,
    kwcount=0, defs=0x0, defcount=0, closure=0x0) at ../Python/ceval.c:2968
#94 0x080ddef7 in PyEval_EvalCode (co=0xb7880530, globals=0xb78c61c4, locals=0xb78c61c4) at ../Python/ceval.c:522
#95 0x080faa1f in run_mod (fp=0x97a5e70, filename=0xbfa78558 "/usr/bin/sugar-session", start=257, globals=0xb78c61c4,
    locals=0xb78c61c4, closeit=1, flags=0xbfa7745c) at ../Python/pythonrun.c:1335
#96 PyRun_FileExFlags (fp=0x97a5e70, filename=0xbfa78558 "/usr/bin/sugar-session", start=257, globals=0xb78c61c4,
    locals=0xb78c61c4, closeit=1, flags=0xbfa7745c) at ../Python/pythonrun.c:1321
#97 0x080fac12 in PyRun_SimpleFileExFlags (fp=0x97a5e70, filename=0xbfa78558 "/usr/bin/sugar-session", closeit=1,