segfaults in GLib code

[Michael Gratton <mike vee net>]

Hi,

I seem to be getting arbitrary segfaults in GLib code being called by
Tinymail. They mostly seem to be occurring when constructing new
gobjects, or registering new gobject types. Some occur during program
startup from the main thread, some later like in the camel queue thread.

This happens with both my app and with Tinymail's
tests/c-demo/tny-demoui, but not with other GLib programs I use
day-to-day. Both these seem to be doing the right thing by way of
calling g_thread_init/gdk_threads_init/gdk_threads_enter.

Has anyone encountered this before? I'm using an up-to-date trunk
checkout. Suggestions appreciated.

Thanks,
//Mike

Here's two examples:

#0  0x00007ffff47d74d4 in IA__g_type_fundamental (
    type_id=<value optimized out>)
    at /home/mjg/local/src/glib2.0-2.22.3/gobject/gtype.c:3682
#1  0x00007ffff47c6447 in IA__g_object_new (object_type=3825212192,
    first_property_name=0x0)
    at /home/mjg/local/src/glib2.0-2.22.3/gobject/gobject.c:1083
#2  0x00007ffff751b0a5 in _tny_camel_header_new () at tny-camel-header.c:373
#3  0x00007ffff75299df in add_message_with_uid (self=<value optimized out>,
    headers=0x8f3c10, refresh=<value optimized out>, err=<value
optimized out>)
    at tny-camel-folder.c:2293
#4  tny_camel_folder_get_headers_default (self=<value optimized out>,
    headers=0x8f3c10, refresh=<value optimized out>, err=<value
optimized out>)
    at tny-camel-folder.c:2559
#5  0x00007ffff7524f83 in tny_camel_folder_get_headers_async_thread (
    thr_user_data=0x8c3520) at tny-camel-folder.c:2393
#6  0x00007ffff753c4a6 in tny_camel_queue_thread_main_func (
    user_data=<value optimized out>) at tny-camel-queue.c:230
[snip]

And the other:

#0  0x00007ffff47def41 in IA__g_type_add_interface_static (
    instance_type=7507264, interface_type=3825207776, info=0x7ffff7234b20)
    at /home/mjg/local/src/glib2.0-2.22.3/gobject/gtype.c:3123
#1  0x00007ffff702c538 in tny_gtk_header_view_register_type (
    notused=<value optimized out>) at tny-gtk-header-view.c:319
#2  0x00007ffff4349fdb in IA__g_once_impl (once=0x7ffff7235e30,
    func=0x7ffff702c500 <tny_gtk_header_view_register_type>, arg=0x0)
    at /home/mjg/local/src/glib2.0-2.22.3/glib/gthread.c:190
#3  0x00007ffff702c4d4 in tny_gtk_header_view_get_type ()
    at tny-gtk-header-view.c:336
#4  0x00007ffff702ced6 in tny_gtk_header_view_new ()
    at tny-gtk-header-view.c:164
#5  0x00007ffff701e424 in tny_gtk_msg_view_instance_init
(instance=0x7260e0,
    g_class=<value optimized out>) at tny-gtk-msg-view.c:827
#6  0x00007ffff47df987 in IA__g_type_create_instance (
    type=<value optimized out>)
    at /home/mjg/local/src/glib2.0-2.22.3/gobject/gtype.c:1674
#7  0x00007ffff47c47bc in g_object_constructor (type=7507264,
    n_construct_properties=2, construct_params=0x7ffff47eca90)
    at /home/mjg/local/src/glib2.0-2.22.3/gobject/gobject.c:1383
#8  0x00007ffff47c55dd in IA__g_object_newv (
    object_type=<value optimized out>, n_parameters=0, parameters=0x0)
    at /home/mjg/local/src/glib2.0-2.22.3/gobject/gobject.c:1171
#9  0x00007ffff47c6355 in IA__g_object_new_valist (object_type=7495248,
    first_property_name=0x0, var_args=0x7fffffffdf80)
    at /home/mjg/local/src/glib2.0-2.22.3/gobject/gobject.c:1323
#10 0x00007ffff47c64ac in IA__g_object_new (object_type=7495248,
    first_property_name=0x0)
    at /home/mjg/local/src/glib2.0-2.22.3/gobject/gobject.c:1086
#11 0x00007ffff701f4e2 in tny_gtk_msg_view_new () at tny-gtk-msg-view.c:793
#12 0x000000000040636a in pimento_main_window_construct (
    object_type=<value optimized out>, account_store=<value optimized out>)
    at mainwindow.vala:91
#13 0x0000000000403b8e in pimento_application_construct (
    object_type=<value optimized out>)
#14 0x0000000000403c49 in pimento_application_main (argc=1,
    argv=<value optimized out>)
#15 main (argc=1, argv=<value optimized out>) at application.vala:42


-- 
⎊ michael gratton, itinerant geek
⎈ <http://web.vee.net/>