Bug#861645: gsequencer FTBFS on mips/mipsel: FAIL: ags_xorg_application_context_test

[Joël Krähemann]

Hi

The flag was set. However it is not that beautiful.
So it can't be the problem.

https://anonscm.debian.org/git/pkg-multimedia/gsequencer.git/tree/ags/X/ags_editor.c#n222

Bests,
Joël


On Fri, May 5, 2017 at 6:09 PM, James Cowgill <jcowgill at debian.org> wrote:
> Hi,
>
> On 05/05/17 13:36, Joël Krähemann wrote:
>> Hi
>>
>> finally I got a stack-trace
>>
>> Using host libthread_db library "/lib/mipsel-linux-gnu/libthread_db.so.1".
>> Core was generated by
>> `/home/jkraehemann/gsequencer-0.8.0/.libs/ags_xorg_application_context_test'.
>> Program terminated with signal SIGSEGV, Segmentation fault.
>> #0  0x75e2af68 in IA__gtk_widget_show_all (widget=0x7280b790) at
>> ./gtk/gtkwidget.c:3376
>> 3376 ./gtk/gtkwidget.c: No such file or directory.
>> (gdb)
>> (gdb) bt
>> #0  0x75e2af68 in IA__gtk_widget_show_all (widget=0x7280b790) at
>> ./gtk/gtkwidget.c:3376
>> #1  0x7677b6c8 in ags_machine_selector_popup_new
>> (machine_selector=0x728104c0) at
>> ags/X/editor/ags_machine_selector.c:569
>> #2  0x766b60a4 in ags_automation_editor_init
>> (automation_editor=0x7276f238) at ags/X/ags_automation_editor.c:222
>> #3  0x75660948 in g_type_create_instance () from
>> /usr/lib/mipsel-linux-gnu/libgobject-2.0.so.0
>> Backtrace stopped: frame did not save the PC
>
> I ran this test in gdb on a real mips machine. When tracing through
> ags_machine_selector_popup_new it seems that the "keys" variable is
> never initialized and a garbage pointer is passed to gtk_widget_show_all.
>
> The variable is never initialized because this condition is false:
> (AGS_MACHINE_SELECTOR_SHOW_SHIFT_PIANO & (machine_selector->flags)) != 0
>
> Thanks,
> James
>