Package: emacs;
Reported by: Daniel Clemente <n142857 <at> gmail.com>
Date: Fri, 31 May 2024 10:20:01 UTC
Severity: normal
Found in version 30.0.50
Done: Eli Zaretskii <eliz <at> gnu.org>
Bug is archived. No further changes may be made.
View this message in rfc822 format
From: Daniel Clemente <n142857 <at> gmail.com> To: Eli Zaretskii <eliz <at> gnu.org> Cc: 71289 <at> debbugs.gnu.org Subject: bug#71289: 30.0.50; cmcheckmagic aborts when tty_write_glyphs writes "Garbage collecting..." in some cases Date: Fri, 31 May 2024 17:07:45 +0000
> Thanks, but these backtraces are not enough, because they don't
> explain why was emacs_abort called. We need to see all the values
> involved in this condition:
>
> if (curX (tty) == FrameCols (tty))
> {
> if (!MagicWrap (tty) || curY (tty) >= FrameRows (tty) - 1) <<<<<<<<<<<
> emacs_abort ();
These were the variables just before emacs_abort, and (abort==1) when aborting.
At point cmcheckmagic, ¿abort? 0. MagicWrap 1, curY 0, vs. 3 - 1. Now
tty has 3 rows, 14 cols
At point cmcheckmagic, ¿abort? 0. MagicWrap 1, curY 1, vs. 3 - 1. Now
tty has 3 rows, 14 cols
At point cmcheckmagic, ¿abort? 1. MagicWrap 1, curY 3, vs. 3 - 1. Now
tty has 3 rows, 14 cols
I got them by adding:
fprintf(stderr, "At point cmcheckmagic, ¿abort? %d. MagicWrap %d, curY
%d, vs. %d - 1. Now tty has %d rows, %d cols\n",
(!MagicWrap (tty) || curY (tty) >= FrameRows (tty) - 1),
MagicWrap(tty), curY(tty), FrameRows(tty),
FrameRows(tty), FrameCols(tty));
I forgot curX, which is:
(gdb) p curX(tty)
$1 = 14
To reproduce this I had to try many random operations. The last thing
I did was increasing the size of an X window showing dired, from very
small (1 line, ~10 cols to 3x14); this works well most of the time but
this time this happened.
Backtrace.
(gdb) bt full
#0 terminate_due_to_signal (sig=6, backtrace_limit=40) at emacs.c:443
No locals.
#1 0x00005555556bdab0 in emacs_abort () at sysdep.c:2391
No locals.
#2 0x000055555566995d in cmcheckmagic (tty=0x5555572c4c90) at cm.c:124
No locals.
#3 0x000055555566de6f in tty_write_glyphs (f=0x555561525f60,
string=0x5555610141c0, len=14) at term.c:819
conversion_buffer = 0x55555f7e9160 "x \\ 3 dc dc)
(Dired by name Helm Projectile yas) 7:39PM 0.41", ' ' <repeats 80
times>, "`UU"
coding = 0x555559956cf0
n = 14
stringlen = 0
tty = 0x5555572c4c90
#4 0x0000555555678203 in write_glyphs (f=0x555561525f60,
string=0x555561013f20, len=14) at terminal.c:163
No locals.
#5 0x000055555559194a in update_frame_line (f=0x555561525f60, vpos=3,
updating_menu_p=false)
at dispnew.c:5321
obody = 0x0
nbody = 0x555561013f20
op1 = 0x300000011
op2 = 0x7fffffff78e0
np1 = 0x7ffff549ed90 <__GI___fflush_unlocked+48>
nend = 0x5555610141c0
tem = 0
osp = 32767
nsp = -34592
begmatch = 32767
endmatch = -178330144
olen = 0
nlen = 14
current_matrix = 0x555560cad240
desired_matrix = 0x5555603cf860
current_row = 0x555560c681c8
desired_row = 0x55556045e7b8
must_write_whole_line_p = true
write_spaces_p = true
colored_spaces_p = true
#6 0x0000555555590b8d in update_frame_1 (f=0x555561525f60,
force_p=true, inhibit_id_p=false,
set_cursor_p=true, updating_menu_p=false) at dispnew.c:5008
current_matrix = 0x555560cad240
desired_matrix = 0x5555603cf860
i = 3
pause_p = 85
preempt_count = 17
#7 0x000055555558cf9f in update_frame (f=0x555561525f60,
force_p=true, inhibit_hairy_id_p=false)
at dispnew.c:3346
paused_p = false
root_window = 0x555560baa508
#8 0x00005555555cf876 in redisplay_internal () at xdisp.c:17478
gcscrollbars = true
f_redisplay_flag = true
f = 0x555561525f60
w = 0x555561526388
sw = 0x555561526388
fr = 0x555561525f60
pending = false
must_finish = false
match_p = false
tlbufpos = {
charpos = 0,
bytepos = 116
}
--Type <RET> for more, q to quit, c to continue without paging--
tlendpos = {
charpos = 29241,
bytepos = 29273
}
number_of_visible_frames = 7
sf = 0x555561525f60
polling_stopped_here = true
tail = XIL(0x5555614f3903)
frame = XIL(0x555561525f65)
MAX_HSCROLL_RETRIES = MAX_HSCROLL_RETRIES
hscroll_retries = 0
MAX_GARBAGED_FRAME_RETRIES = MAX_GARBAGED_FRAME_RETRIES
garbaged_frame_retries = 0
consider_all_windows_p = true
update_miniwindow_p = false
count = {
bytes = 2304
}
#9 0x00005555555d01aa in redisplay_preserve_echo_area (from_where=11)
at xdisp.c:17761
count = {
bytes = 2272
}
#10 0x00005555557ee631 in wait_reading_process_output (time_limit=30,
nsecs=0, read_kbd=-1,
do_display=true, wait_for_cell=XIL(0), wait_proc=0x0,
just_wait_proc=0) at process.c:5585
process_skipped = false
wrapped = false
channel_start = 0
child_fd = 6
last_read_channel = 13
channel = 1024
nfds = -1
Available = {
fds_bits = {8768089968, 0 <repeats 15 times>}
}
Writeok = {
fds_bits = {0 <repeats 16 times>}
}
check_write = true
check_delay = 1
no_avail = true
xerrno = 4
proc = XIL(0xa00000fff)
timeout = {
tv_sec = 28,
tv_nsec = 503054580
}
end_time = {
tv_sec = 1717173578,
tv_nsec = 474082259
}
timer_delay = {
tv_sec = 0,
tv_nsec = 502843472
}
got_output_end_time = {
tv_sec = 1717173578,
tv_nsec = 474082259
}
MINIMUM = MINIMUM
TIMEOUT = TIMEOUT
FOREVER = FOREVER
wait = TIMEOUT
--Type <RET> for more, q to quit, c to continue without paging--
got_some_output = -1
prev_wait_proc_nbytes_read = 0
retry_for_async = false
count = {
bytes = 2240
}
now = {
tv_sec = 1717173549,
tv_nsec = 971027679
}
#11 0x0000555555594f26 in sit_for (timeout=make_fixnum(30),
reading=true, display_option=1)
at dispnew.c:6321
sec = 30
nsec = 0
do_display = true
curbuf_eq_winbuf = false
nbytes = 21845
#12 0x0000555555695ae5 in read_char (commandflag=1,
map=XIL(0x555560278023), prev_event=XIL(0),
used_mouse_menu=0x7fffffff966f, end_time=0x0) at keyboard.c:2923
tem0 = XIL(0x555555770001)
timeout = 30
count1 = {
bytes = 2208
}
delay_level = 4
buffer_size = 50
c = XIL(0)
local_getcjmp = {{
__jmpbuf = {0, -8236620451292018264, 0, 140737168851264,
93825052522836, 0,
-8236620451436721752, -2817863054631007832},
__mask_was_saved = 0,
__saved_mask = {
__val = {93464216335616, 139753184, 140737245531531,
93825002663168, 0, 0, 140737488327872,
93824993653913, 40800, 140737488327952,
93824993660639, 1, 0, 93464225410400, 96,
93825002663168}
}
}}
save_jump = {{
__jmpbuf = {0, 0, 0, 0, 0, 0, 0, 0},
__mask_was_saved = 0,
__saved_mask = {
__val = {0 <repeats 16 times>}
}
}}
tem = XIL(0x5555557806e9)
save = XIL(0x67e0)
previous_echo_area_message = XIL(0)
also_record = XIL(0)
reread = false
recorded = false
polling_stopped_here = false
orig_kboard = 0x555560b58160
jmpcount = {
bytes = 2208
}
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