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bug#6030: bidi crash in display_line
|
From: |
Juanma Barranquero |
|
Subject: |
bug#6030: bidi crash in display_line |
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Date: |
Sun, 25 Apr 2010 00:14:44 +0200 |
Package: emacs
Version: 24.0.50
X-Debbugs-Cc: eliz@gnu.org
I'm getting a crash just by doing
emacs -Q --eval "(setq-default bidi-display-reordering t)"
Backtrace attached.
Juanma
Breakpoint 1, w32_abort () at w32fns.c:7349
7349 button = MessageBox (NULL,
(gdb) bt
#0 w32_abort () at w32fns.c:7349
#1 0x01090475 in display_line (it=0x88d470) at xdisp.c:17983
#2 0x01084e14 in try_window (window=55319557, pos=..., flags=1) at
xdisp.c:14733
#3 0x01083232 in redisplay_window (window=55319557,
just_this_one_p=0) at xdisp.c:14354
#4 0x0107c127 in redisplay_window_0 (window=55319557) at xdisp.c:12646
#5 0x010366be in internal_condition_case_1 (bfun=0x107c0f4
<redisplay_window_0>, arg=55319557, handlers=49502846,
hfun=0x107c0d3 <redisplay_window_error>) at eval.c:1560
#6 0x0107c0ba in redisplay_windows (window=55319557) at xdisp.c:12625
#7 0x01079d29 in redisplay_internal (preserve_echo_area=0) at xdisp.c:12197
#8 0x01076939 in redisplay () at xdisp.c:11427
#9 0x0100a784 in read_char (commandflag=1, nmaps=2, maps=0x88f960,
prev_event=49518618, used_mouse_menu=0x88fa38, end_time=0x0) at
keyboard.c:2576
#10 0x0101d7c4 in read_key_sequence (keybuf=0x88fbcc, bufsize=30,
prompt=49518618, dont_downcase_last=0, can_return_switch_frame=1,
fix_current_buffer=1) at keyboard.c:9402
#11 0x01007bf7 in command_loop_1 () at keyboard.c:1636
#12 0x010365d6 in internal_condition_case (bfun=0x100734e
<command_loop_1>, handlers=49576178, hfun=0x1006a75 <cmd_error>) at
eval.c:1512
#13 0x01006f4f in command_loop_2 () at keyboard.c:1356
#14 0x01036058 in internal_catch (tag=49574346, func=0x1006f2a
<command_loop_2>, arg=49518618) at eval.c:1248
#15 0x01006f08 in command_loop () at keyboard.c:1335
#16 0x01006180 in recursive_edit_1 () at keyboard.c:950
#17 0x0100669b in Frecursive_edit () at keyboard.c:1012
#18 0x01002a95 in main (argc=4, argv=0xc72ca0) at emacs.c:1784
(gdb) frame 1
#1 0x01090475 in display_line (it=0x88d470) at xdisp.c:17983
17983 abort ();
(gdb) p it
$1 = (struct it *) 0x88d470
(gdb) p *it
$2 = {
window = 55319557,
w = 0x34c1c00,
f = 0x34c1a00,
method = GET_FROM_BUFFER,
stop_charpos = 192,
prev_stop = 0,
base_level_stop = 0,
end_charpos = 192,
s = 0x0,
string_nchars = 0,
region_beg_charpos = -1,
region_end_charpos = -1,
redisplay_end_trigger_charpos = 0,
multibyte_p = 1,
header_line_p = 0,
string_from_display_prop_p = 0,
ellipsis_p = 0,
avoid_cursor_p = 0,
dp = 0x3104200,
dpvec = 0x0,
dpend = 0x0,
dpvec_char_len = 0,
dpvec_face_id = 0,
saved_face_id = 0,
ctl_chars = {0 <repeats 16 times>},
start = {
pos = {
charpos = 191,
bytepos = 191
},
overlay_string_index = -1,
string_pos = {
charpos = -1,
bytepos = -1
},
dpvec_index = -1
},
current = {
pos = {
charpos = 192,
bytepos = 192
},
overlay_string_index = -1,
string_pos = {
charpos = -1,
bytepos = -1
},
dpvec_index = -1
},
n_overlay_strings = 0,
overlay_strings = {0 <repeats 16 times>},
string_overlays = {0 <repeats 16 times>},
string = 49518618,
from_overlay = 0,
stack = {{
string = 0,
string_nchars = 0,
end_charpos = 0,
stop_charpos = 0,
prev_stop = 0,
base_level_stop = 0,
cmp_it = {
stop_pos = 0,
id = 0,
ch = 0,
lookback = 0,
nglyphs = 0,
nchars = 0,
nbytes = 0,
from = 0,
to = 0,
width = 0
},
face_id = 0,
u = {
image = {
object = 0,
slice = {
x = 0,
y = 0,
width = 0,
height = 0
},
image_id = 0
},
comp = {
object = 0
},
stretch = {
object = 0
}
},
position = {
charpos = 0,
bytepos = 0
},
current = {
pos = {
charpos = 0,
bytepos = 0
},
overlay_string_index = 0,
string_pos = {
charpos = 0,
bytepos = 0
},
dpvec_index = 0
},
from_overlay = 0,
area = LEFT_MARGIN_AREA,
method = GET_FROM_BUFFER,
multibyte_p = 0,
string_from_display_prop_p = 0,
display_ellipsis_p = 0,
avoid_cursor_p = 0,
line_wrap = TRUNCATE,
voffset = 0,
space_width = 0,
font_height = 0
}, {
string = 0,
string_nchars = 0,
end_charpos = 0,
stop_charpos = 0,
prev_stop = 0,
base_level_stop = 0,
cmp_it = {
stop_pos = 0,
id = 0,
ch = 0,
lookback = 0,
nglyphs = 0,
nchars = 0,
nbytes = 0,
from = 0,
to = 0,
width = 0
},
face_id = 0,
u = {
image = {
object = 0,
slice = {
x = 0,
y = 0,
width = 0,
height = 0
},
image_id = 0
},
comp = {
object = 0
},
stretch = {
object = 0
}
},
position = {
charpos = 0,
bytepos = 0
},
current = {
pos = {
charpos = 0,
bytepos = 0
},
overlay_string_index = 0,
string_pos = {
charpos = 0,
bytepos = 0
},
dpvec_index = 0
},
from_overlay = 0,
area = LEFT_MARGIN_AREA,
method = GET_FROM_BUFFER,
multibyte_p = 0,
string_from_display_prop_p = 0,
display_ellipsis_p = 0,
avoid_cursor_p = 0,
line_wrap = TRUNCATE,
voffset = 0,
space_width = 0,
font_height = 0
}, {
string = 0,
string_nchars = 0,
end_charpos = 0,
stop_charpos = 0,
prev_stop = 0,
base_level_stop = 0,
cmp_it = {
stop_pos = 0,
id = 0,
ch = 0,
lookback = 0,
nglyphs = 0,
nchars = 0,
nbytes = 0,
from = 0,
to = 0,
width = 0
},
face_id = 0,
u = {
image = {
object = 0,
slice = {
x = 0,
y = 0,
width = 0,
height = 0
},
image_id = 0
},
comp = {
object = 0
},
stretch = {
object = 0
}
},
position = {
charpos = 0,
bytepos = 0
},
current = {
pos = {
charpos = 0,
bytepos = 0
},
overlay_string_index = 0,
string_pos = {
charpos = 0,
bytepos = 0
},
dpvec_index = 0
},
from_overlay = 0,
area = LEFT_MARGIN_AREA,
method = GET_FROM_BUFFER,
multibyte_p = 0,
string_from_display_prop_p = 0,
display_ellipsis_p = 0,
avoid_cursor_p = 0,
line_wrap = TRUNCATE,
voffset = 0,
space_width = 0,
font_height = 0
}, {
string = 0,
string_nchars = 0,
end_charpos = 0,
stop_charpos = 0,
prev_stop = 0,
base_level_stop = 0,
cmp_it = {
stop_pos = 0,
id = 0,
ch = 0,
lookback = 0,
nglyphs = 0,
nchars = 0,
nbytes = 0,
from = 0,
to = 0,
width = 0
},
face_id = 0,
u = {
image = {
object = 0,
slice = {
x = 0,
y = 0,
width = 0,
height = 0
},
image_id = 0
},
comp = {
object = 0
},
stretch = {
object = 0
}
},
position = {
charpos = 0,
bytepos = 0
},
current = {
pos = {
charpos = 0,
bytepos = 0
},
overlay_string_index = 0,
string_pos = {
charpos = 0,
bytepos = 0
},
dpvec_index = 0
},
from_overlay = 0,
area = LEFT_MARGIN_AREA,
method = GET_FROM_BUFFER,
multibyte_p = 0,
string_from_display_prop_p = 0,
display_ellipsis_p = 0,
avoid_cursor_p = 0,
line_wrap = TRUNCATE,
voffset = 0,
space_width = 0,
font_height = 0
}, {
string = 0,
string_nchars = 0,
end_charpos = 0,
stop_charpos = 0,
prev_stop = 0,
base_level_stop = 0,
cmp_it = {
stop_pos = 0,
id = 0,
ch = 0,
lookback = 0,
nglyphs = 0,
nchars = 0,
nbytes = 0,
from = 0,
to = 0,
width = 0
},
face_id = 0,
u = {
image = {
object = 0,
slice = {
x = 0,
y = 0,
width = 0,
height = 0
},
image_id = 0
},
comp = {
object = 0
},
stretch = {
object = 0
}
},
position = {
charpos = 0,
bytepos = 0
},
current = {
pos = {
charpos = 0,
bytepos = 0
},
overlay_string_index = 0,
string_pos = {
charpos = 0,
bytepos = 0
},
dpvec_index = 0
},
from_overlay = 0,
area = LEFT_MARGIN_AREA,
method = GET_FROM_BUFFER,
multibyte_p = 0,
string_from_display_prop_p = 0,
display_ellipsis_p = 0,
avoid_cursor_p = 0,
line_wrap = TRUNCATE,
voffset = 0,
space_width = 0,
font_height = 0
}},
sp = 0,
selective = 0,
what = IT_EOB,
face_id = 0,
selective_display_ellipsis_p = 1,
ctl_arrow_p = 1,
face_box_p = 0,
start_of_box_run_p = 0,
end_of_box_run_p = 0,
overlay_strings_at_end_processed_p = 1,
ignore_overlay_strings_at_pos_p = 0,
glyph_not_available_p = 0,
starts_in_middle_of_char_p = 0,
face_before_selective_p = 0,
constrain_row_ascent_descent_p = 0,
line_wrap = WINDOW_WRAP,
base_face_id = 0,
c = 0,
len = 1,
cmp_it = {
stop_pos = 192,
id = -1,
ch = -2,
lookback = 0,
nglyphs = 0,
nchars = 0,
nbytes = 0,
from = 0,
to = 0,
width = 0
},
char_to_display = 32,
image_id = 0,
slice = {
x = 49518618,
y = 49518618,
width = 49518618,
height = 49518618
},
space_width = 49518618,
voffset = 0,
tab_width = 8,
font_height = 49518618,
object = 49557509,
position = {
charpos = 192,
bytepos = 192
},
truncation_pixel_width = 0,
continuation_pixel_width = 0,
first_visible_x = 0,
last_visible_x = 640,
last_visible_y = 560,
extra_line_spacing = 0,
max_extra_line_spacing = 0,
override_ascent = -1,
override_descent = 0,
override_boff = 0,
glyph_row = 0x34861c8,
area = TEXT_AREA,
nglyphs = 1,
pixel_width = 8,
ascent = 12,
descent = 4,
max_ascent = 0,
max_descent = 0,
phys_ascent = 12,
phys_descent = 4,
max_phys_ascent = 0,
max_phys_descent = 0,
current_x = 0,
continuation_lines_width = 0,
eol_pos = {
charpos = 0,
bytepos = 0
},
current_y = 48,
first_vpos = 0,
vpos = 3,
hpos = 0,
left_user_fringe_bitmap = 0,
right_user_fringe_bitmap = 0,
left_user_fringe_face_id = 0,
right_user_fringe_face_id = 0,
bidi_p = 0,
bidi_it = {
bytepos = 192,
charpos = 192,
ch = -1,
ch_len = 1,
type = STRONG_L,
type_after_w1 = NEUTRAL_B,
orig_type = NEUTRAL_B,
resolved_level = 0,
invalid_levels = 0,
invalid_rl_levels = -1,
prev_was_pdf = 0,
prev = {
bytepos = 191,
charpos = 191,
type = UNKNOWN_BT,
type_after_w1 = NEUTRAL_B,
orig_type = NEUTRAL_B
},
last_strong = {
bytepos = 188,
charpos = 188,
type = UNKNOWN_BT,
type_after_w1 = UNKNOWN_BT,
orig_type = UNKNOWN_BT
},
next_for_neutral = {
bytepos = 192,
charpos = 192,
type = STRONG_L,
type_after_w1 = NEUTRAL_B,
orig_type = NEUTRAL_B
},
prev_for_neutral = {
bytepos = 192,
charpos = 192,
type = STRONG_L,
type_after_w1 = NEUTRAL_B,
orig_type = NEUTRAL_B
},
next_for_ws = {
bytepos = 0,
charpos = 0,
type = UNKNOWN_BT,
type_after_w1 = UNKNOWN_BT,
orig_type = UNKNOWN_BT
},
next_en_pos = -1,
ignore_bn_limit = 0,
sor = L2R,
scan_dir = 1,
stack_idx = 0,
level_stack = {{
level = 0,
override = NEUTRAL_DIR
} <repeats 64 times>},
first_elt = 0,
paragraph_dir = L2R,
new_paragraph = 1,
separator_limit = 192
},
paragraph_embedding = NEUTRAL_DIR
}
(gdb)
- bug#6030: bidi crash in display_line,
Juanma Barranquero <=