Created attachment 292481 [details]
The offending document

Tell gedit to open the attached document and search for ">I".  gedit stops responding.  

(gdb) bt

+ Trace 234411

Run till exit from #0  0x00007ffff71cd39f in _gtk_text_btree_char_is_invisible
    (iter=iter@entry=0x7fffffffd3b0)
    at /build/buildd/gtk+3.0-3.10.8/./gtk/gtktextbtree.c:2502
copy_segment (string=0x135e360, include_hidden=0, 
    include_nonchars=<optimized out>, start=0x7fffffffd3b0, end=0x7fffffffd450)
    at /build/buildd/gtk+3.0-3.10.8/./gtk/gtktextbtree.c:2342
2342	in /build/buildd/gtk+3.0-3.10.8/./gtk/gtktextbtree.c
Value returned is $22 = 0
(gdb) fin
Run till exit from #0  copy_segment (string=0x135e360, include_hidden=0, 
    include_nonchars=<optimized out>, start=0x7fffffffd3b0, end=0x7fffffffd450)
    at /build/buildd/gtk+3.0-3.10.8/./gtk/gtktextbtree.c:2342
_gtk_text_btree_get_text (start_orig=<optimized out>, 
    end_orig=<optimized out>, include_hidden=0, include_nonchars=0)
    at /build/buildd/gtk+3.0-3.10.8/./gtk/gtktextbtree.c:2434
2434	in /build/buildd/gtk+3.0-3.10.8/./gtk/gtktextbtree.c
(gdb) fin
Run till exit from #0  _gtk_text_btree_get_text (start_orig=<optimized out>, 
    end_orig=<optimized out>, include_hidden=0, include_nonchars=0)
    at /build/buildd/gtk+3.0-3.10.8/./gtk/gtktextbtree.c:2434
0x00007ffff71e8f25 in lines_match (start=start@entry=0x7fffffffd630, 
    lines=lines@entry=0x1189d20, visible_only=visible_only@entry=1, 
    slice=slice@entry=0, case_insensitive=case_insensitive@entry=1, 
    match_start=match_start@entry=0x7fffffffd5e0, 
    match_end=match_end@entry=0x7fffffffd680)
    at /build/buildd/gtk+3.0-3.10.8/./gtk/gtktextiter.c:4706
4706	/build/buildd/gtk+3.0-3.10.8/./gtk/gtktextiter.c: Nie ma takiego pliku ani katalogu.
Value returned is $23 = (gchar *) 0xe80f40 "><**:********* **:****=\"******I*\">********-****-****-****-", '*' <repeats 12 times>, "</**:*********><**:********* **:****=\"***\">**I-****</**:*********></**:**********-*****>.&****; *** ******* **** *** *** ** ** ***"...
(gdb) fin
Run till exit from #0  0x00007ffff71e8f25 in lines_match (
    start=start@entry=0x7fffffffd630, lines=lines@entry=0x1189d20, 
    visible_only=visible_only@entry=1, slice=slice@entry=0, 
    case_insensitive=case_insensitive@entry=1, 
    match_start=match_start@entry=0x7fffffffd5e0, 
    match_end=match_end@entry=0x7fffffffd680)
    at /build/buildd/gtk+3.0-3.10.8/./gtk/gtktextiter.c:4706
0x00007ffff71e95b6 in gtk_text_iter_forward_search (
    iter=iter@entry=0x7fffffffd740, str=str@entry=0x135cec0 ">I", 
    flags=flags@entry=(GTK_TEXT_SEARCH_VISIBLE_ONLY | GTK_TEXT_SEARCH_TEXT_ONLY | GTK_TEXT_SEARCH_CASE_INSENSITIVE), 
    match_start=match_start@entry=0x7fffffffda10, 
    match_end=match_end@entry=0x7fffffffda60, limit=limit@entry=0x7fffffffd920)
    at /build/buildd/gtk+3.0-3.10.8/./gtk/gtktextiter.c:4938
4938	in /build/buildd/gtk+3.0-3.10.8/./gtk/gtktextiter.c
Value returned is $24 = 1
(gdb) fin
Run till exit from #0  0x00007ffff71e95b6 in gtk_text_iter_forward_search (
    iter=iter@entry=0x7fffffffd740, str=str@entry=0x135cec0 ">I", 
    flags=flags@entry=(GTK_TEXT_SEARCH_VISIBLE_ONLY | GTK_TEXT_SEARCH_TEXT_ONLY | GTK_TEXT_SEARCH_CASE_INSENSITIVE), 
    match_start=match_start@entry=0x7fffffffda10, 
    match_end=match_end@entry=0x7fffffffda60, limit=limit@entry=0x7fffffffd920)
    at /build/buildd/gtk+3.0-3.10.8/./gtk/gtktextiter.c:4938
basic_forward_search (search=search@entry=0xdaa310, 
    iter=iter@entry=0x7fffffffd8d0, 
    match_start=match_start@entry=0x7fffffffda10, 
    match_end=match_end@entry=0x7fffffffda60, limit=limit@entry=0x7fffffffd920)
    at gtksourcesearchcontext.c:777
777			if (!found || !gtk_source_search_settings_get_at_word_boundaries (search->priv->settings))
Value returned is $25 = 0
(gdb) fin
Run till exit from #0  basic_forward_search (search=search@entry=0xdaa310, 
    iter=iter@entry=0x7fffffffd8d0, 
    match_start=match_start@entry=0x7fffffffda10, 
    match_end=match_end@entry=0x7fffffffda60, limit=limit@entry=0x7fffffffd920)
    at gtksourcesearchcontext.c:777
0x00007ffff78e0400 in smart_forward_search_without_scanning (
    search=search@entry=0xdaa310, start_at=start_at@entry=0x7fffffffd9c0, 
    match_start=match_start@entry=0x7fffffffda10, 
    match_end=match_end@entry=0x7fffffffda60, 
    stop_at=stop_at@entry=0x7fffffffdcd0) at gtksourcesearchcontext.c:1400
1400			while (basic_forward_search (search, &iter, match_start, match_end, &limit))
Value returned is $26 = 0
(gdb) fin
Run till exit from #0  0x00007ffff78e0400 in smart_forward_search_without_scanning (search=search@entry=0xdaa310, start_at=start_at@entry=0x7fffffffd9c0, 
    match_start=match_start@entry=0x7fffffffda10, 
    match_end=match_end@entry=0x7fffffffda60, 
    stop_at=stop_at@entry=0x7fffffffdcd0) at gtksourcesearchcontext.c:1400
(never returns)