Re: [gupnp] Seg faults

Hi!

Thanks for testing things!

I had a look at the code and didn't see anything obviously wrong. But
the code has changed a *lot* since 0.1 -- it would be really great if
you could test against trunk! Also if the problems still persist, a test
case would be very much appreciated.

Many thanks,

Jorn

On Fri, 2007-07-06 at 20:38 +0200, Christian Lundgren wrote:
> With gupnp 0.1 I receive this seg fault, I've not tested if this happens
> with trunk. This only happens when I connect the "subscription-lost"
> signal, otherwise it runs fine.
> Looks to me like the xmlNode* passed to xml_util_get_element is
> uninitialized. Backtrace:
>
> #0 xml_util_get_element (node=0x1) at xml-util.c:42
> #1 0x00de4a16 in get_property (info=0x9975b88,
> element_name=<value optimized out>) at gupnp-service-info.c:264
> #2 0x00de4af9 in get_url_property (info=0x9975b88,
> element_name=0xde820a "eventSubURL") at gupnp-service-info.c:295
> #3 0x00de5d4d in subscription_expire (user_data=0x9975b88)
> at gupnp-service-proxy.c:1183
> #4 0x00928bf6 in ?? () from /lib/libglib-2.0.so.0
> #5 0x00928622 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
> #6 0x0092b5ff in ?? () from /lib/libglib-2.0.so.0
> #7 0x0092b9a9 in g_main_loop_run () from /lib/libglib-2.0.so.0
> #8 0x04c601b4 in gtk_main () from /usr//lib/libgtk-x11-2.0.so.0
> #9 0x04301fa7 in Gtk::Main::run_impl ()
> from /usr//lib/libgtkmm-2.4.so.1
> #10 0x04301d92 in Gtk::Main::run () from /usr//lib/libgtkmm-2.4.so.1
> #11 0x080c4e23 in main (argc=135061904, argv=0xb6000000) at main.cc:72
>
>
> And when I try to unrefrence the ControlPoint object I get this, could
> it be something that I am doing wrong here?
>
> Program received signal SIGABRT, Aborted.
> [Switching to Thread -1209009584 (LWP 14902)]
> 0x004a3402 in __kernel_vsyscall ()
> (gdb) bt
> #0 0x004a3402 in __kernel_vsyscall ()
> #1 0x00788fa0 in raise () from /lib/libc.so.6
> #2 0x0078a8b1 in abort () from /lib/libc.so.6
> #3 0x007bfebb in __libc_message () from /lib/libc.so.6
> #4 0x007c7f41 in _int_free () from /lib/libc.so.6
> #5 0x007cb580 in free () from /lib/libc.so.6
> #6 0x00dd582a in gupnp_device_proxy_finalize (object=0xb5f7ae90)
> at gupnp-device-proxy.c:63
> #7 0x00ad40dc in g_object_unref () from /lib/libgobject-2.0.so.0
> #8 0x00dd3c2d in gupnp_control_point_dispose (object=0x8d68c08)
> at gupnp-control-point.c:122
> #9 0x00ad403b in g_object_unref () from /lib/libgobject-2.0.so.0
> #10 0x005d2003 in ~UPnPPlugin (this=0x8a066e0) at PluginUPnP.cc:52
> #11 0x0025bdef in ~PluginManager (this=<value optimized out>)
> at PluginManager.cc:41
> #12 0x002593b7 in __tcf_6 () at ./linkage/RefCounter.hh:36
> #13 0x0078bf27 in __cxa_finalize () from /lib/libc.so.6
> #14 0x00252eb4 in __do_global_dtors_aux ()
> from /usr//lib/liblinkage-1.so.0
> #15 0x00289acc in _fini () from /usr//lib/liblinkage-1.so.0
> #16 0x0074f842 in _dl_fini () from /lib/ld-linux.so.2
> #17 0x0078bc5e in exit () from /lib/libc.so.6
> #18 0x00775f78 in __libc_start_main () from /lib/libc.so.6
> #19 0x0805f9d1 in _start ()
>
>
>
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