Package: emacs;
Reported by: Michael Welsh Duggan <md5i <at> md5i.com>
Date: Thu, 18 Mar 2021 15:40:01 UTC
Severity: normal
Found in version 28.0.50
Done: Michael Welsh Duggan <mwd <at> md5i.com>
Bug is archived. No further changes may be made.
View this message in rfc822 format
From: Michael Welsh Duggan <md5i <at> md5i.com> To: 47244 <at> debbugs.gnu.org Subject: bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs Date: Thu, 18 Mar 2021 11:42:19 -0400
[Message part 1 (text/plain, inline)]
Re-sent with actual attachment. I have managed to catch a SEGFAULT in a long-running Emacs in the debugger. I've been unable to recreate this SEGFAULT on demand, but it seems to be happening when I am attempting to "reset" gnus after switching my work VPN on/off. I will keep the gdb session up an running in case there is some more that can be done with this. In GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo version 1.16.0) of 2021-03-07 built on miko Repository revision: c63d2ef59c511c1c48c69a202907b7edfcbb19b3 Repository branch: md5i Windowing system distributor 'The X.Org Foundation', version 11.0.12010000 System Description: Debian GNU/Linux bullseye/sid Configured using: 'configure --without-toolkit-scroll-bars --with-x-toolkit=lucid 'CFLAGS=-O0 -ggdb3'' Configured features: CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NOTIFY INOTIFY PDUMPER PNG RSVG SOUND THREADS TIFF X11 XAW3D XDBE XIM XPM LUCID ZLIB Important settings: value of $LANG: en_US.UTF-8 value of $XMODIFIERS: @im=ibus locale-coding-system: utf-8-unix
[gdb.txt (text/plain, inline)]
#0 0x00005555555e1a61 in redisplay_internal ()
at ../../master/src/xdisp.c:15789
w = 0x555556b96340
sw = 0x555556b96340
fr = 0x555556b8ca50
pending = false
must_finish = true
match_p = true
tlbufpos = {
charpos = 127,
bytepos = 127
}
tlendpos = {
charpos = 0,
bytepos = 0
}
number_of_visible_frames = 4
count = 3
sf = 0x555556b8ca50
polling_stopped_here = false
tail = XIL(0)
frame = XIL(0x555555d52afd)
hscroll_retries = 0
garbaged_frame_retries = 0
consider_all_windows_p = false
update_miniwindow_p = true
#1 0x00005555555e061e in redisplay () at ../../master/src/xdisp.c:15245
#2 0x00005555556e9991 in read_char
(commandflag=1, map=XIL(0x555558a3e483), prev_event=XIL(0), used_mouse_menu=0x7fffffffdabf, end_time=0x0) at ../../master/src/keyboard.c:2496
echo_current = false
c = XIL(0)
jmpcount = 93824999976800
local_getcjmp = {{
__jmpbuf = {93825000009536, 0, 93824999976800, 0, 0, 140737488345232, 93824994486337, 93825051609157},
__mask_was_saved = -10032,
__saved_mask = {
__val = {93824994503322, 140737259960288, 140737259960240, 0, 46912259983440, 0, 140737259960288, 93824999976800, 0, 0, 140737488345344, 93824993977890, 4066572208, 93824999976800, 0, 0}
}
}}
save_jump = {{
__jmpbuf = {0, 32736, 0, 140737266320856, 0, 0, 93825051609152, 0},
__mask_was_saved = 0,
__saved_mask = {
__val = {93825000009536, 93824994486337, 0, 140737488345184, 93824994507922, 140737266320856, 12884891664, 0, 32736, 93825051609152, 140737266320856, 93824995128912, 51539607552, 93825051609157, 93825051609152, 93824995129355}
}
}}
tem = XIL(0)
save = make_fixnum(23456248494472)
previous_echo_area_message = XIL(0)
also_record = XIL(0)
reread = false
recorded = false
polling_stopped_here = false
orig_kboard = 0x555555dea0a0
#3 0x00005555556f86dc in read_key_sequence
(keybuf=0x7fffffffdcc0, prompt=XIL(0), dont_downcase_last=false, can_return_switch_frame=true, fix_current_buffer=true, prevent_redisplay=false)
at ../../master/src/keyboard.c:9484
interrupted_kboard = 0x555555dea0a0
interrupted_frame = 0x555556b8ca50
key = make_fixnum(23456248516455)
used_mouse_menu = false
echo_local_start = 0
last_real_key_start = 0
keys_local_start = 0
new_binding = XIL(0x555557286ce0)
count = 3
t = 0
echo_start = 0
keys_start = 0
current_binding = XIL(0x555558a3e483)
first_unbound = 31
mock_input = 0
used_mouse_menu_history = {false <repeats 30 times>}
fkey = {
parent = XIL(0x5555568a0323),
map = XIL(0x5555568a0323),
start = 0,
end = 0
}
keytran = {
parent = XIL(0x7ffff2c27c4b),
map = XIL(0x7ffff2c27c4b),
start = 0,
end = 0
}
indec = {
parent = XIL(0x5555568a0353),
map = XIL(0x5555568a0353),
start = 0,
end = 0
}
shift_translated = false
delayed_switch_frame = XIL(0)
original_uppercase = XIL(0)
original_uppercase_position = -1
dummyflag = false
starting_buffer = 0x555558df4840
fake_prefixed_keys = XIL(0)
first_event = XIL(0)
second_event = XIL(0)
#4 0x00005555556e6c13 in command_loop_1 () at ../../master/src/keyboard.c:1353
cmd = XIL(0x7fffffffde10)
keybuf = {XIL(0), XIL(0x7ffff2c27bf5), XIL(0x555555765719), XIL(0x1655540), XIL(0x7fffffffdd70), XIL(0x55555579dc50), XIL(0x1655540), XIL(0x7ffff257b4c4), XIL(0x555558df8683), XIL(0x7ffff2c27bf5), XIL(0x7ffff2c27bf5), XIL(0x555558df8683), XIL(0x7ffff257b4c4), XIL(0x1655540), XIL(0), XIL(0), XIL(0x555555cb6f60), XIL(0), XIL(0), XIL(0x7fffffffdd70), XIL(0x5555556e3b34), XIL(0xffffddc0), XIL(0x555555cb6f60), XIL(0), XIL(0), XIL(0x7fffffffdda0), XIL(0x555555797748), make_fixnum(0), XIL(0x7fffffffdde0), XIL(0x55555579ae39)}
i = 1
prev_modiff = 0
prev_buffer = 0x0
already_adjusted = false
#5 0x000055555579aa34 in internal_condition_case (bfun=0x5555556e67cd <command_loop_1>, handlers=XIL(0x90), hfun=0x5555556e5f69 <cmd_error>) at ../../master/src/eval.c:1439
val = XIL(0x5555556e3b34)
c = 0x555555db1380
#6 0x00005555556e6495 in command_loop_2 (ignore=XIL(0)) at ../../master/src/keyboard.c:1094
val = make_fixnum(0)
#7 0x000055555579a242 in internal_catch (tag=XIL(0xd950), func=0x5555556e6468 <command_loop_2>, arg=XIL(0)) at ../../master/src/eval.c:1189
val = XIL(0xd950)
c = 0x555555d9a6f0
#8 0x00005555556e6434 in command_loop () at ../../master/src/keyboard.c:1073
#9 0x00005555556e5b3a in recursive_edit_1 () at ../../master/src/keyboard.c:720
count = 1
val = XIL(0x7fffffffdf50)
#10 0x00005555556e5cbd in Frecursive_edit () at ../../master/src/keyboard.c:789
count = 0
buffer = XIL(0)
#11 0x00005555556e26ea in main (argc=2, argv=0x7fffffffe1b8) at ../../master/src/emacs.c:2050
stack_bottom_variable = 0x7ffff617e053
no_loadup = false
junk = 0x0
dname_arg = 0x0
ch_to_dir = 0x0
original_pwd = 0x0
dump_mode = 0x0
skip_args = 1
temacs = 0x0
attempt_load_pdump = true
rlim = {
rlim_cur = 10022912,
rlim_max = 18446744073709551615
}
lc_all = 0x0
sockfd = -1
module_assertions = false
Lisp Backtrace:
"redisplay_internal (C function)" (0x0)
[Message part 3 (text/plain, inline)]
-- Michael Welsh Duggan (md5i <at> md5i.com)
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997,2003 nCipher Corporation Ltd,
1994-97 Ian Jackson.