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Got the following segfault from python-2.7.5-9.fc20.x86_64: Program received signal SIGSEGV, Segmentation fault. _pygi_marshal_from_py_interface_instance (state=<optimized out>, callable_cache=<optimized out>, arg_cache=0xb2af00, py_arg=0x7115a0, arg=0xb86890) at pygi-marshal-from-py.c:1579 1579 pygi-marshal-from-py.c: No such file or directory. Missing separate debuginfos, use: debuginfo-install python-2.7.5-9.fc20.x86_64 (gdb) where #0 _pygi_marshal_from_py_interface_instance (state=<optimized out>, callable_cache=<optimized out>, arg_cache=0xb2af00, py_arg=0x7115a0, arg=0xb86890) at pygi-marshal-from-py.c:1579 #1 0x00007ffff0d4068e in _invoke_marshal_in_args (cache=0xb3b760, state=0x7fffffffcfc0) at pygi-invoke.c:505 #2 pygi_callable_info_invoke (info=<optimized out>, py_args=<optimized out>, kwargs=<optimized out>, cache=<optimized out>, function_ptr=<optimized out>, user_data=<optimized out>) at pygi-invoke.c:649 #3 0x0000003ecae4a0f3 in PyObject_Call (func=func@entry=0xa66ae8, arg=arg@entry=0x90ad70, kw=kw@entry=0x0) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2529 #4 0x0000003ecaede43c in do_call (nk=<optimized out>, na=5, pp_stack=0x7fffffffd1b0, func=0xa66ae8) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4316 #5 call_function (oparg=<optimized out>, pp_stack=0x7fffffffd1b0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4121 #6 PyEval_EvalFrameEx (f=f@entry=0x6ca3a0, throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:2740 #7 0x0000003ecaee229d in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, locals=locals@entry=0x0, args=<optimized out>, argcount=argcount@entry=4, kws=0xa4c540, kwcount=0, defs=0x8ac888, defcount=3, closure=closure@entry=0x0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:3330 #8 0x0000003ecaee094f in fast_function (nk=<optimized out>, na=4, n=4, pp_stack=0x7fffffffd3b0, func=0xa63410) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4194 #9 call_function (oparg=<optimized out>, pp_stack=0x7fffffffd3b0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4119 #10 PyEval_EvalFrameEx (f=f@entry=0xa4c380, throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:2740 #11 0x0000003ecaee229d in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, locals=locals@entry=0x0, args=args@entry=0x70f268, argcount=1, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0, defcount=defcount@entry=0, closure=0x0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:3330 #12 0x0000003ecae6f178 in function_call (func=0x8f29b0, arg=0x70f250, kw=0x0) at /usr/src/debug/Python-2.7.5/Objects/funcobject.c:526 #13 0x0000003ecae4a0f3 in PyObject_Call (func=func@entry=0x8f29b0, arg=arg@entry=0x70f250, kw=kw@entry=0x0) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2529 #14 0x0000003ecae59105 in instancemethod_call (func=0x8f29b0, arg=0x70f250, kw=0x0) at /usr/src/debug/Python-2.7.5/Objects/classobject.c:2602 #15 0x0000003ecae4a0f3 in PyObject_Call (func=func@entry=0x7ffff7f1a1e0, arg=arg@entry=0x7ffff7f96050, kw=<optimized out>) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2529 #16 0x0000003ecaedc0e7 in PyEval_CallObjectWithKeywords ( func=func@entry=0x7ffff7f1a1e0, arg=arg@entry=0x7ffff7f96050, kw=kw@entry=0x0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:3967 #17 0x0000003ecae59ddc in PyInstance_New (klass=<optimized out>, arg=0x7ffff7f96050, kw=0x0) at /usr/src/debug/Python-2.7.5/Objects/classobject.c:581 #18 0x0000003ecae4a0f3 in PyObject_Call (func=func@entry=0x8adb48, arg=arg@entry=0x7ffff7f96050, kw=kw@entry=0x0) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2529 #19 0x0000003ecaede43c in do_call (nk=<optimized out>, na=0, pp_stack=0x7fffffffd990, func=0x8adb48) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4316 #20 call_function (oparg=<optimized out>, pp_stack=0x7fffffffd990) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4121 #21 PyEval_EvalFrameEx (f=f@entry=0x6cfb70, throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:2740 #22 0x0000003ecaee229d in PyEval_EvalCodeEx (co=co@entry=0x7ffff7ec0bb0, globals=globals@entry=0x63f570, locals=locals@entry=0x63f570, args=args@entry=0x0, argcount=argcount@entry=0, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0, defcount=defcount@entry=0, closure=closure@entry=0x0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:3330 #23 0x0000003ecaee23a2 in PyEval_EvalCode (co=co@entry=0x7ffff7ec0bb0, globals=globals@entry=0x63f570, locals=locals@entry=0x63f570) at /usr/src/debug/Python-2.7.5/Python/ceval.c:689 #24 0x0000003ecaefb7ef in run_mod (mod=<optimized out>, filename=filename@entry=0x7fffffffe133 "bin/skype-notify.py", globals=globals@entry=0x63f570, locals=locals@entry=0x63f570, flags=flags@entry=0x7fffffffdbf0, arena=arena@entry=0x627820) at /usr/src/debug/Python-2.7.5/Python/pythonrun.c:1373 #25 0x0000003ecaefc9ae in PyRun_FileExFlags (fp=fp@entry=0x643990, filename=filename@entry=0x7fffffffe133 "bin/skype-notify.py", start=start@entry=257, globals=globals@entry=0x63f570, locals=locals@entry=0x63f570, closeit=closeit@entry=1, flags=flags@entry=0x7fffffffdbf0) at /usr/src/debug/Python-2.7.5/Python/pythonrun.c:1359 #26 0x0000003ecaefdc39 in PyRun_SimpleFileExFlags (fp=fp@entry=0x643990, filename=filename@entry=0x7fffffffe133 "bin/skype-notify.py", closeit=closeit@entry=1, flags=flags@entry=0x7fffffffdbf0) at /usr/src/debug/Python-2.7.5/Python/pythonrun.c:951 #27 0x0000003ecaefe163 in PyRun_AnyFileExFlags (fp=fp@entry=0x643990, filename=filename@entry=0x7fffffffe133 "bin/skype-notify.py", closeit=closeit@entry=1, flags=flags@entry=0x7fffffffdbf0) at /usr/src/debug/Python-2.7.5/Python/pythonrun.c:755 #28 0x0000003ecaf0ec4f in Py_Main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/Python-2.7.5/Modules/main.c:640 #29 0x0000003eb9821d65 in __libc_start_main (main=0x4006f0 <main>, argc=4, argv=0x7fffffffddb8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffdda8) at libc-start.c:285 #30 0x0000000000400721 in _start ()
These correlate to this message: [112420.356714] python[20264]: segfault at 9 ip 00007f7d50b67cd5 sp 00007fff335cca30 error 4 in _gi.so[7f7d50b4f000+23000] The python program that's triggering these is trying to use Notify from gi.repository.
This is probably happening due to a call to Notify.add_action() with invalid arguments as such: a = Notify.Notification.add_action("DoAction2", "do something", do_something, None, None) I think the first argument is supposed to be a Notify object and the segfault does go away if I make it one. But is a segfault really the best we can do here when this happens? I don't know. I don't know much about how all of this introspection works under the hood. Maybe it is.
This has been fixed upstream in pygobject 3.12.1 and master: https://bugzilla.gnome.org/show_bug.cgi?id=727604
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