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bug#20802: Segfault when showing non-GTK+ tooltip
From: |
Eli Zaretskii |
Subject: |
bug#20802: Segfault when showing non-GTK+ tooltip |
Date: |
Sat, 13 Jun 2015 17:42:36 +0300 |
> Date: Sat, 13 Jun 2015 16:28:47 +0200
> From: martin rudalics <rudalics@gmx.at>
> CC: tobias.getzner@gmx.de, 20802@debbugs.gnu.org
>
> As I mentioned earlier this seems to be due to the fact that the
> debugger intervenes in some recursive fashion. The crash happens after
> the backtrace window popped up and when I try to ‘switch-to-prev-buffer’
> in the window where the tooltip should have appeared. Without that I'm
> _not_ able to reproduce the crash.
>
> > Can you see what is that frame, and why we didn't call
> > init_frame_faces for it?
>
> What makes you think this is not my normal frame in the first place and
> why init_frame_faces was not called for it? Hmmm, I see, nothing can
> stop make_image_cache apparently.
Exactly. It is created in init_frame_faces, and never removed as long
as the frame is alive.
> I'll look into this later
Thanks.
> > Also, which image are we trying to display
> > here?
>
> How would I know?
I thought you could look that up in the debugger. For example, the
value of 'spec' in frame #1 (see below) could tell.
> > Something on the toolbar, perhaps? Did you move mouse pointer
> > over a tool-bar button to trigger a tooltip that failed?
>
> The toolbar is disabled with my customizations.
Hmm... then what other images do we display? Note that according to
the backtrace, we've found a 'display' property in buffer, which
caused the call to lookup_image:
#0 0x00000000006c9b5c in cache_image (f=0x13a7e00, img=0x198ee20) at
../../src/image.c:1775
#1 0x00000000006c96e3 in lookup_image (f=0x13a7e00, spec=...) at
../../src/image.c:1686
#2 0x000000000044bebc in handle_single_display_spec (it=0x7fffffff8ba0,
spec=..., object=..., overlay=..., position=0x7fffffff8cd8, bufpos=203,
display_replaced=0, frame_window_p=true) at ../../src/xdisp.c:5137
[...]
#6 0x0000000000454ee3 in next_element_from_buffer (it=0x7fffffff8ba0) at
../../src/xdisp.c:8133
Thanks.
- bug#20802: Segfault when showing non-GTK+ tooltip, Tobias Getzner, 2015/06/13
- bug#20802: Segfault when showing non-GTK+ tooltip, Eli Zaretskii, 2015/06/13
- bug#20802: Segfault when showing non-GTK+ tooltip, martin rudalics, 2015/06/13
- bug#20802: Segfault when showing non-GTK+ tooltip, Eli Zaretskii, 2015/06/13
- bug#20802: Segfault when showing non-GTK+ tooltip, martin rudalics, 2015/06/13
- bug#20802: Segfault when showing non-GTK+ tooltip, Eli Zaretskii, 2015/06/13
- bug#20802: Segfault when showing non-GTK+ tooltip, martin rudalics, 2015/06/13
- bug#20802: Segfault when showing non-GTK+ tooltip,
Eli Zaretskii <=
- bug#20802: Segfault when showing non-GTK+ tooltip, martin rudalics, 2015/06/14
- bug#20802: Segfault when showing non-GTK+ tooltip, Eli Zaretskii, 2015/06/14
- bug#20802: Segfault when showing non-GTK+ tooltip, martin rudalics, 2015/06/15
- bug#20802: Segfault when showing non-GTK+ tooltip, Eli Zaretskii, 2015/06/15
- bug#20802: Segfault when showing non-GTK+ tooltip, martin rudalics, 2015/06/15
- bug#20802: Segfault when showing non-GTK+ tooltip, Eli Zaretskii, 2015/06/15
- bug#20802: Segfault when showing non-GTK+ tooltip, martin rudalics, 2015/06/16
- bug#20802: Segfault when showing non-GTK+ tooltip, Eli Zaretskii, 2015/06/16
- bug#20802: Segfault when showing non-GTK+ tooltip, martin rudalics, 2015/06/17
- bug#20802: Segfault when showing non-GTK+ tooltip, Eli Zaretskii, 2015/06/17