Re: [gnome-flashback] Debug-ability; getting gnome-panel 3.8 out

[Lanoxx <lanoxx gmx net>]

On 28/09/13 17:42, Lanoxx wrote:
> On 28/09/13 16:42, Philipp Kaluza wrote:
> > Am 28.09.2013 16:10, schrieb Alberts Muktupāvels:
> > > > When I do that it segfaults, but I compiled with prefix /usr/local:
> > > >
> > > > (gnome-panel:10053): Gtk-CRITICAL **: 
> > > > gtk_accelerator_parse_with_keycode:
> > > > assertion `accelerator != NULL' failed
> > > >
> > > > ** (gnome-panel:10053): WARNING **: Unable to parse mouse modifier 
> > > > '(null)'
> > > >
> > > > Unable to open desktop file javascript:void(0).desktop for panel 
> > > > launcher
> > > > Segmentation fault (core dumped)
> > > Than I have no idea. Recompiled with prefix /usr/local. Panel still
> > > opens but does not load applets, I got this error:
> > > WARNING **: Error opening directory
> > > '/usr/local/share/gnome-panel/4.0/applets': No such file or directory
> > >
> > > I am doing this from saucy from flashback session, with all updates
> > > installed, without any ppa. I am not installing compiled panel too.
> > > Steps I do:
> > > 1) ./autogen.sh --prefix=/usr
> > > 2) make
> > > 3) gnome-panel/gnome-panel --replace
> > Guys, take a step back, and think about what you are trying to do.
> > a) gnome-panel ships some applets
> > b) in _needs_ to load these on startup
> > c) it needs to know where to load these from
> >
> >  From this follows:
> > d) gnome-panel can _not_ just run from the make directory; the prefix
> > where to load the panel applets will be encoded into the binary.
> >
> > With that in mind, please do:
> > Option A:
> > make distclean
> > ./autogen.sh --prefix=/usr/local
> > make
> > sudo make install
> > /usr/local/bin/gnome-panel --replace &
> >
> > -or-
> > Option B:
> > sudo mkdir /opt/gnome-panel-3.8
> > sudo chown $UID /opt/gnome-panel-3.8
> > make distclean
> > ./autogen.sh --prefix=/opt/gnome-panel-3.8
> > make
> > make install
> > /opt/gnome-panel-3.8/bin/gnome-panel --replace &
> >
> > Good luck ! :)
> Thanks. I used option B. The panel still segfaults. I have executed it 
> now with gdb, maybe that gives you some idea whats going wrong?
>
> (gdb) run --replace
> Starting program: /opt/gnome-panel-3.8/bin/gnome-panel --replace
> warning: no loadable sections found in added symbol-file 
> system-supplied DSO at 0x7ffff7ffa000
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library 
> "/lib/x86_64-linux-gnu/libthread_db.so.1".
> [New Thread 0x7fffeb35c700 (LWP 31763)]
> [New Thread 0x7fffea74a700 (LWP 31764)]
>
> (gnome-panel:31762): Gtk-CRITICAL **: 
> gtk_accelerator_parse_with_keycode: assertion `accelerator != NULL' 
> failed
>
> ** (gnome-panel:31762): WARNING **: Unable to parse mouse modifier 
> '(null)'
>
> [New Thread 0x7fffe3fff700 (LWP 31765)]
> Unable to open desktop file javascript:void(0).desktop for panel launcher
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x00007ffff56e167c in g_type_check_instance_is_a () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
>
> (gdb) backtrace
> #0  0x00007ffff56e167c in g_type_check_instance_is_a () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #1  0x00007ffff56c5386 in g_object_unref () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #2  0x000000000042f2c9 in panel_find_icon (size=24, 
> icon_name=<optimized out>, icon_theme=<optimized out>) at 
> panel-util.c:290
> #3  panel_find_icon (icon_theme=<optimized out>, icon_name=<optimized 
> out>, size=24) at panel-util.c:253
> #4  0x000000000042f419 in panel_load_icon (icon_theme=<optimized out>, 
> icon_name=0x7ff240 "system-shutdown", size=<optimized out>, 
> desired_width=-1, desired_height=<optimized out>, 
> error_msg=error_msg entry=0x7fffffffb788)
>     at panel-util.c:311
> #5  0x0000000000427cd3 in button_widget_reload_pixbuf 
> (button=0x9600e0) at button-widget.c:167
> #6  0x00007ffff56c055e in g_closure_invoke () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #7  0x00007ffff56d1544 in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #8  0x00007ffff56d9d11 in g_signal_emit_valist () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #9  0x00007ffff56d9f92 in g_signal_emit () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #10 0x00007ffff718b372 in gtk_widget_size_allocate () from 
> /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
> #11 0x0000000000424a19 in panel_widget_size_allocate 
> (widget=<optimized out>, allocation=0x7fffffffc3e0) at 
> panel-widget.c:1502
> #12 0x00007ffff56c055e in g_closure_invoke () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #13 0x00007ffff56d1544 in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #14 0x00007ffff56d9d11 in g_signal_emit_valist () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #15 0x00007ffff56d9f92 in g_signal_emit () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #16 0x00007ffff718b372 in gtk_widget_size_allocate () from 
> /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
> #17 0x0000000000450d2d in panel_frame_size_allocate (widget=0x7ff840, 
> allocation=0x7fffffffc920) at panel-frame.c:159
> #18 0x00007ffff56c37a0 in g_cclosure_marshal_VOID__BOXEDv () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #19 0x00007ffff56c081b in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #20 0x00007ffff56d92df in g_signal_emit_valist () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #21 0x00007ffff56d9f92 in g_signal_emit () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #22 0x00007ffff718b372 in gtk_widget_size_allocate () from 
> /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
> #23 0x00007ffff6f55c72 in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
> #24 0x00007ffff56c37a0 in g_cclosure_marshal_VOID__BOXEDv () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #25 0x00007ffff56c081b in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #26 0x00007ffff56d92df in g_signal_emit_valist () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #27 0x00007ffff56d9f92 in g_signal_emit () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #28 0x00007ffff718b372 in gtk_widget_size_allocate () from 
> /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
> #29 0x000000000044856d in panel_toplevel_size_allocate 
> (widget=0x7ee0e0, allocation=<optimized out>) at panel-toplevel.c:2840
> #30 0x00007ffff56c0620 in g_closure_invoke () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #31 0x00007ffff56d1544 in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #32 0x00007ffff56d9d11 in g_signal_emit_valist () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #33 0x00007ffff56d9f92 in g_signal_emit () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #34 0x00007ffff718b372 in gtk_widget_size_allocate () from 
> /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
> #35 0x000000000044801d in panel_toplevel_check_resize 
> (container=<optimized out>) at panel-toplevel.c:2701
> #36 0x00007ffff56c08e7 in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #37 0x00007ffff56d92df in g_signal_emit_valist () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #38 0x00007ffff56d9f92 in g_signal_emit () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #39 0x00007ffff6fc4f63 in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
> #40 0x00007ffff6c59b40 in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
> #41 0x00007ffff53fcf05 in g_main_context_dispatch () from 
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #42 0x00007ffff53fd248 in ?? () from 
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #43 0x00007ffff53fd6ba in g_main_loop_run () from 
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #44 0x00007ffff70594a5 in gtk_main () from 
> /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
> #45 0x0000000000421f3f in main (argc=1, argv=0x7fffffffdb88) at 
> main.c:115
>
> Cheers
> Sebastian

I just build gnome-3.6.2 from git and it works. So the reason must be 
that some libary is out of date, even though configure did not complain 
about my system. I am building from Ubuntu 13.04 which only has the 
gnome 3.6.2 stack.
> > I strongly recommend against installing into /usr, as that will cause
> > confusion with the distribution-provided packages. That's what happened
> > to you Dmitry, your started-from-builddir gnome-panel tried to load the
> > distribution-provided applets. No wonder you see weird segfaults.
> >
> > When you've successfully started a gnome-panel built this way, you can
> > then start putting symlinks to the session files into /usr/share. But it
> > doesn't make until the first part works.
> >
> > Cheers
> >    Philipp
>
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