Re: [Swami-devel] Segmentation Fault

[Aaron L. <dar...@gm...>]

On Tue, Jul 5, 2016 at 2:52 PM, Aaron Laws <dar...@gm...> wrote:

> I just started using swami to create a new sound font based on an existing
> one. I experience segmentation faults quite often. The font that I'm
> editing is Jeux 1.4 (http://www.realmac.info/download.htm) which seems to
> have some bogus characters. O-umlaut and other characters with accents
> don't show up properly. I haven't investigated closely, but it seems like
> they might be encoded as UTF-16? Anyway, swami complained quite a bit about
> "invalid UTF-8 strings", and I removed all the bogus characters I can see.
>
> That didn't stop the crashing, however. It usually happens when I delete
> (e.g.) an instrument from a melodic preset. The error is:
>
> Gtk:ERROR:gtktreestore.c:522:gtk_tree_store_get_path: assertion failed:
> (G_NODE (iter->user_data)->parent != NULL)
> Aborted (core dumped)
>
> The crashes are frequent enough that I'm saving very often now (so,
> perhaps a good thing after all). Happily, swami starts back up pretty
> quickly. I'll keep an eye on it and see if I ever get a different message.
>
> Also, please let me know if there's a startup parameter or something else
> I can do to get more output (stack track?), etc.
>
> In Christ,
> Aaron Laws
>
>

Just now, again, when trying to remove 4 or so non-contiguous instruments
from a melodic preset, I got:

 ** (swami:31545): CRITICAL **: ipatch_unit_convert: assertion 'src_info !=
NULL' failed
Segmentation fault (core dumped)

the swami:31545 message was posted several times, and not just when the
failure happened, but over the course of my work.

It's worth mentioning that I restarted swami, and did the exact same thing,
but it worked this time.


A little later, I get:
(swami:32394): GnomeCanvas-CRITICAL **: gnome_canvas_item_lower_to_bottom:
assertion 'GNOME_IS_CANVAS_ITEM (item)' failed
(swami:32394): GLib-GObject-CRITICAL **: g_object_set: assertion
'G_IS_OBJECT (object)' failed
(swami:32394): GLib-GObject-WARNING **: invalid unclassed pointer in cast
to 'GtkObject'
(swami:32394): Gtk-CRITICAL **: IA__gtk_object_destroy: assertion
'GTK_IS_OBJECT (object)' failed
(swami:32394): GLib-GObject-CRITICAL **: g_object_unref: assertion
'G_IS_OBJECT (object)' failed
(swami:32394): GLib-GObject-CRITICAL **: g_object_unref: assertion
'G_IS_OBJECT (object)' failed
(swami:32394): GLib-GObject-CRITICAL **: g_object_unref: assertion
'G_IS_OBJECT (object)' failed
(swami:32394): GLib-GObject-CRITICAL **: g_object_unref: assertion
'G_IS_OBJECT (object)' failed
(swami:32394): GLib-GObject-CRITICAL **: g_object_unref: assertion
'G_IS_OBJECT (object)' failed
(swami:32394): GLib-GObject-CRITICAL **: g_object_unref: assertion
'G_IS_OBJECT (object)' failed
Segmentation fault (core dumped)

A couple minutes later:

(swami:1432): GLib-GObject-CRITICAL **: g_object_unref: assertion
'G_IS_OBJECT (object)' failed
(swami:1432): GLib-GObject-CRITICAL **: g_object_unref: assertion
'G_IS_OBJECT (object)' failed
(swami:1432): GLib-GObject-CRITICAL **: g_object_unref: assertion
'G_IS_OBJECT (object)' failed
(swami:1432): GLib-GObject-CRITICAL **: g_object_unref: assertion
'G_IS_OBJECT (object)' failed
(swami:1432): GLib-GObject-CRITICAL **: g_object_unref: assertion
'G_IS_OBJECT (object)' failed
(swami:1432): GLib-GObject-WARNING **: instance of invalid
non-instantiatable type '<invalid>'
(swami:1432): GLib-GObject-CRITICAL **: g_signal_emit_valist: assertion
'G_TYPE_CHECK_INSTANCE (instance)' failed
(swami:1432): GLib-GObject-WARNING **: instance of invalid
non-instantiatable type '<invalid>'
(swami:1432): GLib-GObject-CRITICAL **: g_signal_handlers_destroy:
assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
(swami:1432): GLib-GObject-WARNING **: instance of invalid
non-instantiatable type '<invalid>'
(swami:1432): GLib-GObject-CRITICAL **: g_signal_handlers_destroy:
assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
(swami:1432): GnomeCanvas-CRITICAL **: gnome_canvas_item_raise_to_top:
assertion 'GNOME_IS_CANVAS_ITEM (item)' failed
(swami:1432): GLib-GObject-CRITICAL **: g_object_set: assertion
'G_IS_OBJECT (object)' failed
(swami:1432): GnomeCanvas-CRITICAL **: gnome_canvas_item_lower_to_bottom:
assertion 'GNOME_IS_CANVAS_ITEM (item)' failed
(swami:1432): GLib-GObject-CRITICAL **: g_object_set: assertion
'G_IS_OBJECT (object)' failed
**
Gtk:ERROR:gtktreestore.c:522:gtk_tree_store_get_path: assertion failed:
(G_NODE (iter->user_data)->parent != NULL)
Aborted (core dumped)


I see your response already. I just checked, and I made from cmake. I'll
run from gdb and see what I can see. I'm on commit d27e8ed. I just ran git
fetch, and I see that you've been committing a lot lately!

Should I try the stable branch?