Ok, after further investigation, the problem comes from my (external)
sound card, an EMU Tracker Pre. The crash happens when selecting this
device as input device in the sound applet.
Here is the stacktrace:
(gdb) run sound
Starting program: /tmp/tmpVSBtz1/usr/bin/gnome-control-center sound
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffef2b5700 (LWP 17363)]
[New Thread 0x7fffed3d0700 (LWP 17364)]
warning:
"/tmp/tmpVSBtz1/usr/lib/debug/.build-id/44/e380bea4bc54a41e8afa2f8b7bb2d4717d1f87.debug":
separate debug info file has no debug info
warning: Could not load shared library symbols for
/usr/lib/x86_64-linux-gnu/gtk-3.0/3.0.0/menuproxies/libappmenu.so.
Do you need "set solib-search-path" or "set sysroot"?
[New Thread 0x7fffc23ab700 (LWP 17366)]
Program received signal SIGSEGV, Segmentation fault.
g_signal_emit_valist (instance=0x5555557f2ca0, signal_id=1, detail=1458,
var_args=var_args@entry=0x7fffff7ff198)
at /build/buildd/glib2.0-2.34.1/./gobject/gsignal.c:3080
3080 /build/buildd/glib2.0-2.34.1/./gobject/gsignal.c: No such file or
directory.
(gdb) bt
#0 g_signal_emit_valist (instance=0x5555557f2ca0, signal_id=1, detail=1458,
var_args=var_args@entry=0x7fffff7ff198)
at /build/buildd/glib2.0-2.34.1/./gobject/gsignal.c:3080
#1 0x00007ffff619f642 in g_signal_emit (instance=<optimized out>,
signal_id=<optimized out>, detail=<optimized out>)
at /build/buildd/glib2.0-2.34.1/./gobject/gsignal.c:3356
#2 0x00007ffff618aaf5 in g_object_dispatch_properties_changed
(object=0x5555557f2ca0, n_pspecs=1, pspecs=0x5b2)
at /build/buildd/glib2.0-2.34.1/./gobject/gobject.c:1041
#3 0x00007ffff618a53e in g_object_notify_queue_thaw
(object=object@entry=0x5555557f2ca0, nqueue=nqueue@entry=0x5555562e5d90)
at /build/buildd/glib2.0-2.34.1/./gobject/gobject.c:291
#4 0x00007ffff618c593 in g_object_thaw_notify (object=0x5555557f2ca0) at
/build/buildd/glib2.0-2.34.1/./gobject/gobject.c:1269
#5 0x00007ffff75e44bb in apply_cell_attributes (renderer=0x5555557f2ca0,
info=0x555555aaa010, data=0x7fffff7ff410)
at /build/buildd/gtk+3.0-3.6.0/./gtk/gtkcellarea.c:1287
#6 0x00007ffff5eb7090 in g_hash_table_foreach (hash_table=0x555555ae0000,
func=func@entry=0x7ffff75e43a0 <apply_cell_attributes>,
user_data=user_data@entry=0x7fffff7ff410)
at /build/buildd/glib2.0-2.34.1/./glib/ghash.c:1524
#7 0x00007ffff75e4356 in gtk_cell_area_real_apply_attributes (area=<optimized
out>, tree_model=0x555555a93640,
iter=0x55555630cc00, is_expander=<optimized out>, is_expanded=<optimized
out>)
at /build/buildd/gtk+3.0-3.6.0/./gtk/gtkcellarea.c:1313
#8 0x00007ffff75e9d9f in gtk_cell_area_box_apply_attributes (area=<optimized
out>,
tree_model=tree_model@entry=0x555555a93640, iter=iter@entry=0x55555630cc00,
is_expander=<optimized out>,
is_expanded=<optimized out>) at
/build/buildd/gtk+3.0-3.6.0/./gtk/gtkcellareabox.c:1317
#9 0x00007ffff76b0158 in _gtk_marshal_VOID__OBJECT_BOXED_BOOLEAN_BOOLEANv
(closure=0x5555559f8290,
return_value=<optimized out>, instance=0x555555a71cd0, args=<optimized
out>, marshal_data=<optimized out>,
n_params=<optimized out>, param_types=0x5555559ffed0) at
/build/buildd/gtk+3.0-3.6.0/./gtk/gtkmarshalers.c:4960
#10 0x00007ffff6186407 in _g_closure_invoke_va (closure=0x5555559f8290,
return_value=0x0, instance=0x555555a71cd0,
args=0x7fffff7ff7a8, n_params=4, param_types=0x5555559ffed0) at
/build/buildd/glib2.0-2.34.1/./gobject/gclosure.c:840
#11 0x00007ffff619edf6 in g_signal_emit_valist (instance=0x555555a71cd0,
signal_id=<optimized out>, detail=0,
var_args=var_args@entry=0x7fffff7ff7a8) at
/build/buildd/glib2.0-2.34.1/./gobject/gsignal.c:3211
#12 0x00007ffff619f642 in g_signal_emit
(instance=instance@entry=0x555555a71cd0, signal_id=<optimized out>,
detail=detail@entry=0) at
/build/buildd/glib2.0-2.34.1/./gobject/gsignal.c:3356
#13 0x00007ffff75e61b4 in gtk_cell_area_apply_attributes (area=0x555555a71cd0,
tree_model=tree_model@entry=0x555555a93640,
iter=iter@entry=0x7fffff7ff8c0, is_expander=is_expander@entry=0,
is_expanded=is_expanded@entry=0)
at /build/buildd/gtk+3.0-3.6.0/./gtk/gtkcellarea.c:2362
#14 0x00007ffff77caa5d in gtk_tree_view_column_cell_set_cell_data
(tree_column=<optimized out>,
tree_model=tree_model@entry=0x555555a93640, iter=iter@entry=0x7fffff7ff8c0,
is_expander=is_expander@entry=0,
is_expanded=is_expanded@entry=0) at
/build/buildd/gtk+3.0-3.6.0/./gtk/gtktreeviewcolumn.c:2872
---Type <return> to continue, or q <return> to quit---q
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1056334
Title:
sound capplet segfaults in
gvc_mixer_control_lookup_device_from_stream()
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1056334/+subscriptions
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