Bug#410167: gedit: Gedit crashes when viewing source of web page with Epiphany

[Danai SAE-HAN (=E9=9F=93=E9=81=94=E8=80=90)]

Hi Josselin!

From: Josselin Mouette <joss at debian.org>

> I'm afraid I can't reproduce that bug, either with 2.14 or 2.16 on amd64
> architecture.
> 
> Could you please send the backtrace provided by bug-buddy (click on
> details to see it)? If the crash is located in a library, it would also
> be better to have the corresponding -dbg packages installed, otherwise
> you should rebuild gedit with debugging symbols enabled.
> 
> See http://wiki.debian.org/HowToGetABacktrace for more information.

Here's a BT from gedit when I opened index.html:

[New Thread 1082399072 (LWP 25186)]
[Thread 1082399072 (LWP 25186) exited]
(no debugging symbols found)
(no debugging symbols found)
sys:1: PangoWarning: shape engine failure, expect ugly output. the offending font is 'SimSun-18030 12'
sys:1: PangoWarning: pango_font_get_glyph_extents called with bad font, expect ugly output
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 47019756224368 (LWP 25178)]
0x00002ac3a1a0f70a in ?? () from /usr/lib/libpangoft2-1.0.so.0
(gdb) bt
#0  0x00002ac3a1a0f70a in ?? () from /usr/lib/libpangoft2-1.0.so.0
#1  0x00002aaaac114261 in ?? () from /usr/lib/pango/1.5.0/modules/pango-thai-fc.so
#2  0x00002aaaac1137f0 in ?? () from /usr/lib/pango/1.5.0/modules/pango-thai-fc.so
#3  0x00002aaaac113f55 in ?? () from /usr/lib/pango/1.5.0/modules/pango-thai-fc.so
#4  0x00002ac39fad601e in pango_shape () from /usr/lib/libpango-1.0.so.0
#5  0x00002ac39facad2c in ?? () from /usr/lib/libpango-1.0.so.0
#6  0x00002ac39facd147 in ?? () from /usr/lib/libpango-1.0.so.0
#7  0x00002ac39facd92b in ?? () from /usr/lib/libpango-1.0.so.0
#8  0x00002ac39face17d in ?? () from /usr/lib/libpango-1.0.so.0
#9  0x00002ac39f4667f8 in gtk_text_layout_get_line_display () from /usr/lib/libgtk-x11-2.0.so.0
#10 0x00002ac39f4693e2 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#11 0x00002ac39f451dbc in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#12 0x00002ac39f451ed2 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#13 0x00002ac39f451ed2 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#14 0x00002ac39f451ed2 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#15 0x00002ac39f4520df in _gtk_text_btree_validate () from /usr/lib/libgtk-x11-2.0.so.0
#16 0x00002ac39f4682f3 in gtk_text_layout_validate () from /usr/lib/libgtk-x11-2.0.so.0
#17 0x00002ac39f4733ad in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#18 0x00002ac3a066fc73 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#19 0x00002ac3a0672abd in ?? () from /usr/lib/libglib-2.0.so.0
#20 0x00002ac3a0672da6 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#21 0x00002ac39f3e66b2 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#22 0x0000000000426849 in main ()


I haven't rebuilt the packages yet or installed -dbg; I'll do this as
soon as I can.

I have also attached a bzipped strace output, where you can clearly
see that Gedit/Pango/whatever crashes because of a TTF with chmod
0400.

I have explained a bit more about this problem in another bug report:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=365587


Best regards



Danai SAE-HAN
韓達耐

-- 
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