I appologies for not sending a proper report as emacs crashes when
trying to make a report through report-emacs-bug
If you need more information, please let me know.
As I'm not too well versed in gdb, please specify exact gdb commands
you want me to run.

OS: Kubuntu 9.10
Emacs trunk bzr revision 100805
configured with:
CFLAGS="-g -Wdeclaration-after-statement -Wno-pointer-sign
-DENABLE_CHECKING=1 -DSITELOAD_PURESIZE_EXTRA=20000 -fno-crossjumping"
./configure --with-libotf --with-m17n_flt --with-xft --enable-asserts

First crash:
When trying to report with report-emacs-bug, emacs crash with the
following output:
gtkutil.c:3885: Emacs fatal error: assertion failed:
STRINGP((((((((enum Lisp_Type) (((unsigned int)
(((f->tool_bar_items)))) & ((((int) 1) << 3) - 1))) ==
Lisp_Vectorlike)) || suppress_checking ? (void) 0 : die (("assertion
failed: " "VECTORLIKEP((f->tool_bar_items))"), "gtkutil.c", 3885)),
0),(struct Lisp_Vector *) ((int) (((f->tool_bar_items)) & ~((((int) 1)
<< 3) - 1))))->contents[i * TOOL_BAR_ITEM_NSLOTS +
(TOOL_BAR_ITEM_LABEL)])
Fatal error (6)Aborted

2nd crash: When trying to load the file el-artsi.txt (Attached) emacs crash.
Attached in gdb stack trace:

(gdb) run -Q ../el-artsi.txt
Starting program: /home/yair/emacs/src/emacs/trunk/src/emacs -Q ../el-artsi.txt
[Thread debugging using libthread_db enabled]

Program received signal SIGSEGV, Segmentation fault.
0x08178e07 in char_table_ref (table=150273685, c=4195671) at chartab.c:200
200           if (SUB_CHAR_TABLE_P (val))
(gdb) bt
#0  0x08178e07 in char_table_ref (table=150273685, c=4195671) at chartab.c:200
#1  0x08126331 in encode_char (charset=0x8857610, c=4195671) at charset.c:1779
#2  0x083ca76b in xfont_has_char (font=150273117, c=4195671) at xfont.c:949
#3  0x08332a6b in font_has_char (f=0x89f5280, font=150273117,
c=4195671) at font.c:3085
#4  0x081d4123 in fontset_find_font (fontset=147152525, c=4195671,
face=0x8c86308, id=-1, fallback=1) at fontset.c:649
#5  0x081d529d in fontset_font (fontset=147323613, c=4195671,
face=0x8c86308, id=-1) at fontset.c:767
#6  0x081d62e6 in face_for_char (f=0x89f5280, face=0x8c86308,
c=4195671, pos=150, object=142115250) at fontset.c:952
#7  0x0809c519 in get_next_display_element (it=0xbfffc338) at xdisp.c:6051
#8  0x080c48c1 in display_line (it=0xbfffc338) at xdisp.c:17400
#9  0x080bb04d in try_window (window=144659461, pos=..., flags=1) at
xdisp.c:14589
#10 0x080b9478 in redisplay_window (window=144659461,
just_this_one_p=0) at xdisp.c:14205
#11 0x080b22ad in redisplay_window_0 (window=144659461) at xdisp.c:12470
#12 0x08307583 in internal_condition_case_1 (bfun=0x80b227a
<redisplay_window_0>, arg=144659461, handlers=142097134,
hfun=0x80b2259 <redisplay_window_error>) at eval.c:1508
#13 0x080b2240 in redisplay_windows (window=144659461) at xdisp.c:12450
#14 0x080afe2f in redisplay_internal (preserve_echo_area=0) at xdisp.c:12028
#15 0x080acac9 in redisplay () at xdisp.c:11267
#16 0x0823d4a3 in read_char (commandflag=1, nmaps=2, maps=0xbfffea50,
prev_event=142115250, used_mouse_menu=0xbfffeba4, end_time=0x0) at
keyboard.c:2544
#17 0x08250b21 in read_key_sequence (keybuf=0xbfffec5c, bufsize=30,
prompt=142115250, dont_downcase_last=0, can_return_switch_frame=1,
fix_current_buffer=1) at keyboard.c:9329
#18 0x0823a996 in command_loop_1 () at keyboard.c:1618
#19 0x0830747b in internal_condition_case (bfun=0x823a0ed
<command_loop_1>, handlers=142145978, hfun=0x82397fa <cmd_error>) at
eval.c:1463
#20 0x08239cf0 in command_loop_2 (ignore=142115250) at keyboard.c:1341
#21 0x08306eb5 in internal_catch (tag=142144098, func=0x8239ccc
<command_loop_2>, arg=142115250) at eval.c:1207
#22 0x08239caa in command_loop () at keyboard.c:1320
#23 0x08238f02 in recursive_edit_1 () at keyboard.c:943
#24 0x0823941e in Frecursive_edit () at keyboard.c:1005
#25 0x08237083 in main (argc=3, argv=0xbffff3b4) at emacs.c:1778