Subject: bug#55371: 29.0.50; lock-up in redisplay_internal

From: Michael Welsh Duggan <[email-masked]>
Date: Wed, 11 May 2022 11:08:11 -0400

I wrote a dbus event watcher that triggers when my network connection
changes (for me, this is usually because I am switching to or from a
VPN).  As part of this, I call `gnus-close-all-servers` (this allows
gnus to reconnect to servers from its new network state).  In this
particular instance, this led to a chain of events that
redisplay_internal being called, from which Emacs became unresponsive.
As I was running Emacs from a debugger (to potentially debug a different
problem), I was able to send a TSTP signal, get a backtrace, and then
used "return -1" "c" to get back in a state where I could hit C-g a
couple of times and regain interactivity.

This was a random event that may be already solved in a later version,
and it may or may not be reproducible in the future, but I wanted to
send the backtrace now while I had one in case any part of it was
actually informative.

Backtrace follows Emacs info.

In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo version 1.16.0)
 of 2022-04-09 built on miko
Repository revision: 75bdf15c2972e216a2c10a7562d96ad217192356
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101003
System Description: Debian GNU/Linux bookworm/sid

Configured using:
 'configure --without-toolkit-scroll-bars --with-x-toolkit=lucid
 --with-native-compilation --with-xinput2 'CFLAGS=-Og -ggdb''

Configured features:
CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG JSON
LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP
NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF X11
XAW3D XDBE XIM XINPUT2 XPM LUCID ZLIB

Important settings:
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Text

Minor modes in effect:
  flyspell-mode: t
  display-time-mode: t
  magit-wip-initial-backup-mode: t
  magit-wip-before-change-mode: t
  magit-wip-after-apply-mode: t
  magit-wip-after-save-mode: t
  magit-wip-mode: t
  global-git-commit-mode: t
  magit-auto-revert-mode: t
  shell-dirtrack-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  line-number-mode: t
  auto-fill-function: do-auto-fill
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
/home/md5i/.config/emacs/elpa/transient-20220425.1314/transient hides /home/md5i/src/emacs/md5i/lisp/transient

Features:
(shadow emacsbug pcmpl-unix thai-util thai-word gnus-fun tramp-cache
tramp-sh sh-script smie executable image-mode exif shr-color jka-compr
flow-fill copyright time-stamp whitespace dabbrev markdown-mode color
mm-archive perl-mode tabify man grep misearch multi-isearch cmake-mode
rst magit-extras dired-aux mule-util sort gnus-cite mail-extr textsec
uni-scripts idna-mapping ucs-normalize uni-confusable textsec-check
gnus-async gnus-bcklg qp gnus-ml disp-table gnus-topic cursor-sensor
nndraft nnmh nnfolder utf-7 epa-file network-stream gnus-agent gnus-srvr
gnus-score score-mode nnvirtual gnus-msg gnus-art mm-uu mml2015 mm-view
mml-smime smime dig gnus-cache gnus-sum shr pixel-fill kinsoku url-file
url-dired svg gnus-demon nntp gnus-group gnus-undo gnutls gnus-start
gnus-dbus gnus-cloud gnus-spec gnus-win shortdoc help-fns radix-tree
quail goto-addr thingatpt vc-git vc-dispatcher bug-reference noutline
outline face-remap apropos flyspell ispell view pacproxy descr-text
tramp tramp-loaddefs trampver tramp-integration cus-edit pp cus-load
files-x tramp-compat parse-time iso8601 ls-lisp time sieve-manage sasl
sasl-anonymous sasl-login sasl-plain rng-loc rng-uri rng-parse rng-match
rng-dt rng-util rng-pttrn nxml-parse nxml-ns nxml-enc xmltok nxml-util
sgml-mode facemenu dom python ps-print ps-print-loaddefs ps-def lpr
picture nm dbus xml magit-submodule magit-obsolete magit-blame
magit-stash magit-reflog magit-bisect magit-push magit-pull magit-fetch
magit-clone magit-remote magit-commit magit-sequence magit-notes
magit-worktree magit-tag magit-merge magit-branch magit-reset
magit-files magit-refs magit-status magit magit-repos magit-apply
magit-wip magit-log which-func imenu magit-diff smerge-mode diff
diff-mode easy-mmode git-commit log-edit pcvs-util add-log magit-core
magit-autorevert autorevert filenotify magit-margin magit-transient
magit-process with-editor shell pcomplete server magit-mode transient
comp comp-cstr warnings rx cl-extra edmacro kmacro help-mode magit-git
magit-base magit-section format-spec crm dash compat-27 compat-26 compat
nnimap nnmail gnus-int mail-source gnus-range message sendmail
yank-media rfc822 mml mml-sec epa mm-decode mm-bodies mm-encode
mailabbrev gmm-utils mailheader utf7 netrc nnoo gnus wid-edit nnheader
gnus-util time-date mail-utils range gnus-o365-oauth2 oauth2 url-http
url-auth mail-parse rfc2231 rfc2047 rfc2045 mm-util ietf-drums
mail-prsvr url-gw nsm rmc puny plstore generated generic-x epg rfc6068
epg-config ediff ediff-merg ediff-mult ediff-wind ediff-diff ediff-help
ediff-init ediff-util dired-x dired dired-loaddefs compile
text-property-search comint ring ansi-color cc-mode cc-fonts cc-guess
cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs derived
debian-el info package browse-url url url-proxy url-privacy url-expand
url-methods url-history url-cookie url-domsuf url-util mailcap
url-handlers url-parse auth-source cl-seq eieio eieio-core cl-macs
eieio-loaddefs password-cache json map url-vars seq gv subr-x byte-opt
bytecomp byte-compile cconv cl-loaddefs cl-lib iso-transl tooltip eldoc
paren electric uniquify ediff-hook vc-hooks lisp-float-type elisp-mode
mwheel term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image
regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode
prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu
timer select scroll-bar mouse jit-lock font-lock syntax font-core
term/tty-colors frame minibuffer nadvice simple cl-generic cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european
ethiopic indian cyrillic chinese composite emoji-zwj charscript charprop
case-table epa-hook jka-cmpr-hook help abbrev obarray oclosure
cl-preloaded button loaddefs faces cus-face macroexp files window
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget keymap hashtable-print-readable backquote threads dbusbind
inotify lcms2 dynamic-setting system-font-setting font-render-setting
cairo x-toolkit xinput2 x multi-tty make-network-process native-compile
emacs)

Memory information:
((conses 16 18089905 287562)
 (symbols 48 33940 69)
 (strings 32 153793 36082)
 (string-bytes 1 4440184)
 (vectors 16 113803)
 (vector-slots 8 2456029 312523)
 (floats 8 1044 767)
 (intervals 56 2151093 3067)
 (buffers 992 106))

(gdb) bt full
#0  0x00007ffff3adb87f in __GI___poll (fds=0x7fffffff9c98, nfds=1, timeout=-1)
    at ../sysdeps/unix/sysv/linux/poll.c:29
        sc_ret = -516
        sc_cancel_oldtype = 0
#1  0x00007ffff362ad02 in  () at /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ffff362d05a in xcb_wait_for_event ()
    at /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ffff79f10a8 in _XReadEvents () at /lib/x86_64-linux-gnu/libX11.so.6
#4  0x00007ffff79d8214 in XIfEvent () at /lib/x86_64-linux-gnu/libX11.so.6
#5  0x00007ffff7a211ef in  () at /lib/x86_64-linux-gnu/libX11.so.6
#6  0x00007ffff7a21ca2 in  () at /lib/x86_64-linux-gnu/libX11.so.6
#7  0x00007ffff7a21f1d in _XimRead () at /lib/x86_64-linux-gnu/libX11.so.6
#8  0x00007ffff7a10afb in  () at /lib/x86_64-linux-gnu/libX11.so.6
#9  0x00007ffff79fe4ad in XSetICValues () at /lib/x86_64-linux-gnu/libX11.so.6
#10 0x00005555556a3b19 in xic_set_preeditarea
    (w=<optimized out>, x=<optimized out>, y=<optimized out>)
    at ../../md5i/src/xfns.c:3050
        f = 0x55555a0fcd00
        attr = 0x555580c0cfd0
        spot = {
          x = 145,
          y = 239
        }
#11 0x0000555555683419 in x_draw_window_cursor
    (w=0x55555cde5c90, glyph_row=<optimized out>, x=120, y=221, cursor_type=<optimized out>, cursor_width=<optimized out>, on_p=<optimized out>, active_p=<optimized out>) at ../../md5i/src/xterm.c:18956
        f = 0x55555a0fcd00
#12 0x00005555555fae84 in display_and_set_cursor
    (w=w@entry=0x55555cde5c90, on=on@entry=true, hpos=15, vpos=13, x=120, y=221) at ../../md5i/src/xdisp.c:32670
        f = 0x55555a0fcd00
        new_cursor_type = 1
        new_cursor_width = 1
        active_cursor = false
        glyph_row = 0x5555782402d0
        glyph = <optimized out>
#13 0x00005555555a143a in gui_update_window_end
    (w=w@entry=0x55555cde5c90, cursor_on_p=cursor_on_p@entry=true, mouse_face_overwritten_p=false) at ../../md5i/src/dispnew.c:3849
        f = 0x55555a0fcd00
#14 0x00005555555a17ed in update_window
    (w=w@entry=0x55555cde5c90, force_p=<optimized out>, force_p@entry=true)
    at ../../md5i/src/dispnew.c:3777
        end = 0x555576987a40
        tab_line_row = <optimized out>
        mouse_face_overwritten_p = false
        n_updated = <optimized out>
        mode_line_row = 0x555576987a40
        changed_p = false
        invisible_rows_marked = <optimized out>
        row = <optimized out>
        header_line_row = <optimized out>
        yb = <optimized out>
        desired_matrix = 0x555574a96860
        paused_p = false
        rif = <optimized out>
#15 0x00005555555a199b in update_window_tree
    (w=0x55555cde5c90, force_p=force_p@entry=true)
    at ../../md5i/src/dispnew.c:3407
        paused_p = false
#16 0x00005555555a198b in update_window_tree
    (w=w@entry=0x55555ba9bca0, force_p=force_p@entry=true)
    at ../../md5i/src/dispnew.c:3405
        paused_p = false
#17 0x00005555555a1b41 in update_frame
    (f=f@entry=0x55555a0fcd00, force_p=true,     force_p@entry=false, inhibit_hairy_id_p=inhibit_hairy_id_p@entry=false)
    at ../../md5i/src/dispnew.c:3242
        paused_p = <optimized out>
        root_window = 0x55555ba9bca0
#18 0x00005555555f24d4 in redisplay_internal () at ../../md5i/src/xdisp.c:16605
        gcscrollbars = <optimized out>
        f_redisplay_flag = false
        f = 0x55555a0fcd00
        w = <optimized out>
--Type <RET> for more, q to quit, c to continue without paging--c
        sw = <optimized out>
        fr = <optimized out>
        pending = <optimized out>
        must_finish = <optimized out>
        match_p = <optimized out>
        tlbufpos = {
          charpos = <optimized out>,
          bytepos = <optimized out>
        }
        tlendpos = {
          charpos = <optimized out>,
          bytepos = <optimized out>
        }
        number_of_visible_frames = <optimized out>
        sf = <optimized out>
        polling_stopped_here = true
        tail = XIL(0x5555766796d3)
        frame = XIL(0x55555a0fcd05)
        hscroll_retries = <optimized out>
        garbaged_frame_retries = 0
        consider_all_windows_p = <optimized out>
        update_miniwindow_p = <optimized out>
#19 0x00005555555f2d4f in redisplay_preserve_echo_area (from_where=from_where@entry=13) at ../../md5i/src/xdisp.c:16874
#20 0x00005555557b0681 in Fdelete_process (process=XIL(0x55555bddb6fd)) at ../../md5i/src/process.c:1110
        p = 0x55555bddb6f8
#21 0x00007fffec147ae5 in F6e6e74702d6b696c6c2d627566666572_nntp_kill_buffer_0 () at /home/md5i/.config/emacs/eln-cache/29.0.50-05c91b39/nntp-c90d6652-2e0ea1cc.eln
#22 0x00005555557540eb in funcall_subr (subr=0x555555f854a8, numargs=numargs@entry=1, args=args@entry=0x7fffffffcb30) at ../../md5i/src/eval.c:2911
        argbuf = {make_fixnum(1), XIL(0x55555572b61b), XIL(0x1), make_fixnum(23456248540561), XIL(0x7fffffffcb08), XIL(0x555555762aa4), XIL(0x7fffffffca30), XIL(0x220)}
        a = <optimized out>
        fun = <optimized out>
#23 0x00005555557520d5 in funcall_general (fun=<optimized out>, numargs=numargs@entry=1, args=args@entry=0x7fffffffcb30) at ../../md5i/src/eval.c:2819
        original_fun = XIL(0x1c25ba0)
#24 0x0000555555752562 in Ffuncall (nargs=2, args=0x7fffffffcb28) at ../../md5i/src/eval.c:2873
        val = <optimized out>
#25 0x00007fffec14ef36 in F6e6e74702d636c6f73652d736572766572_nntp_close_server_0 () at /home/md5i/.config/emacs/eln-cache/29.0.50-05c91b39/nntp-c90d6652-2e0ea1cc.eln
#26 0x00005555557540fa in funcall_subr (subr=0x555557bc6128, numargs=numargs@entry=2, args=args@entry=0x7fffffffcc60) at ../../md5i/src/eval.c:2913
        argbuf = {XIL(0x55555791c743), XIL(0xa8abe0), XIL(0), make_fixnum(0), XIL(0x7fffffffcc60), XIL(0x220), XIL(0), XIL(0x555555750025)}
        a = <optimized out>
        fun = <optimized out>
#27 0x00005555557520d5 in funcall_general (fun=<optimized out>, numargs=numargs@entry=2, args=args@entry=0x7fffffffcc60) at ../../md5i/src/eval.c:2819
        original_fun = XIL(0x1bcf820)
#28 0x0000555555752562 in Ffuncall (nargs=3, args=0x7fffffffcc58) at ../../md5i/src/eval.c:2873
        val = <optimized out>
#29 0x00007fffed1c9e66 in F676e75732d636c6f73652d736572766572_gnus_close_server_0 () at /home/md5i/.config/emacs/eln-cache/29.0.50-05c91b39/gnus-int-7bc862cf-34bc57b2.eln
#30 0x00005555557540eb in funcall_subr (subr=0x5555567bf668, numargs=numargs@entry=1, args=args@entry=0x7fffffffcdb8) at ../../md5i/src/eval.c:2911
        argbuf = {XIL(0x5555598a00f3), XIL(0x5555598a00e3), XIL(0x5555598a00d3), XIL(0x5555598a00c3), XIL(0x5555598a00b3), make_fixnum(23456248558792), XIL(0x5555598a0093), XIL(0x5555598a0083)}
        a = <optimized out>
        fun = <optimized out>
#31 0x00005555557520d5 in funcall_general (fun=<optimized out>, numargs=numargs@entry=1, args=args@entry=0x7fffffffcdb8) at ../../md5i/src/eval.c:2819
        original_fun = XIL(0xc8d520)
#32 0x0000555555752562 in Ffuncall (nargs=2, args=0x7fffffffcdb0) at ../../md5i/src/eval.c:2873
        val = <optimized out>
#33 0x00007fffec1b60ed in F676e75732d636c6f73652d616c6c2d73657276657273_gnus_close_all_servers_0 () at /home/md5i/.config/emacs/eln-cache/29.0.50-05c91b39/gnus-start-e3ba711c-9411c4e4.eln
#34 0x0000555555755496 in eval_sub (form=<optimized out>) at ../../md5i/src/eval.c:2379
        i = 0
        maxargs = 0
        args_left = XIL(0)
        numargs = 0
        original_fun = <optimized out>
        original_args = XIL(0)
        fun = XIL(0x555557ba6525)
        val = <optimized out>
        funcar = <optimized out>
        argvals = {XIL(0x7fffffffd018), XIL(0x55555575191c), XIL(0xb), XIL(0x2aaa99d28138), XIL(0), XIL(0x5555578d2b55), XIL(0x7fffec99e6a0), XIL(0x555555c71f60)}
#35 0x0000555555755cc6 in Fprogn (body=XIL(0)) at ../../md5i/src/eval.c:451
        form = <optimized out>
        val = XIL(0)
#36 0x0000555555754c40 in funcall_lambda (fun=XIL(0x555557912323), nargs=nargs@entry=1, arg_vector=arg_vector@entry=0x7fffffffd008) at ../../md5i/src/eval.c:3112
        val = <optimized out>
        syms_left = XIL(0)
        next = <optimized out>
        lexenv = XIL(0)
        i = 1
        optional = false
        rest = true
        previous_rest = false
#37 0x000055555575239d in funcall_general (fun=<optimized out>, numargs=numargs@entry=1, args=args@entry=0x7fffffffd008) at ../../md5i/src/eval.c:2835
        funcar = <optimized out>
        original_fun = XIL(0x19113a0)
#38 0x0000555555752562 in Ffuncall (nargs=nargs@entry=2, args=args@entry=0x7fffffffd000) at ../../md5i/src/eval.c:2873
        val = <optimized out>
#39 0x00005555557530a1 in Fapply (nargs=2, args=0x7fffffffd000) at ../../md5i/src/eval.c:2507
        i = <optimized out>
        funcall_nargs = <optimized out>
        funcall_args = 0x0
        spread_arg = XIL(0x5555599ff9b3)
        fun = XIL(0x19113a0)
        sa_avail = 16384
        numargs = <optimized out>
        retval = <optimized out>
#40 0x00007fffec9a11ce in F6e6d2d2d68616e646c652d6e65772d636f6e6e656374696f6e_nm__handle_new_connection_0 () at /home/md5i/.config/emacs/eln-cache/29.0.50-05c91b39/nm-fc8ed4f3-3e0666f8.eln
#41 0x00005555557540eb in funcall_subr (subr=0x555556dbffc8, numargs=numargs@entry=1, args=args@entry=0x7fffffffd158) at ../../md5i/src/eval.c:2911
        argbuf = {XIL(0x7fffffffd0f0), make_fixnum(0), XIL(0), XIL(0x5555556ea638), XIL(0), XIL(0x55555576659c), XIL(0), XIL(0x55555574fec1)}
        a = <optimized out>
        fun = <optimized out>
#42 0x00005555557520d5 in funcall_general (fun=<optimized out>, numargs=numargs@entry=1, args=args@entry=0x7fffffffd158) at ../../md5i/src/eval.c:2819
        original_fun = XIL(0x133d010)
#43 0x0000555555752562 in Ffuncall (nargs=2, args=0x7fffffffd150) at ../../md5i/src/eval.c:2873
        val = <optimized out>
#44 0x00007fffec9a1493 in F6e6d2d2d68616e646c652d70726f706572746965732d6368616e6765642d7369676e616c_nm__handle_properties_changed_signal_0 () at /home/md5i/.config/emacs/eln-cache/29.0.50-05c91b39/nm-fc8ed4f3-3e0666f8.eln
#45 0x00005555557541be in funcall_subr (subr=0x555556dc0020, numargs=numargs@entry=3, args=args@entry=0x7fffffffd268) at ../../md5i/src/eval.c:2938
        fun = <optimized out>
#46 0x00005555557520d5 in funcall_general (fun=<optimized out>, numargs=numargs@entry=3, args=args@entry=0x7fffffffd268) at ../../md5i/src/eval.c:2819
        original_fun = XIL(0x133d0d0)
#47 0x0000555555752562 in Ffuncall (nargs=nargs@entry=4, args=args@entry=0x7fffffffd260) at ../../md5i/src/eval.c:2873
        val = <optimized out>
#48 0x00005555557532e5 in Fapply (nargs=<optimized out>, args=0x7fffffffd3e8) at ../../md5i/src/eval.c:2550
        i = 4
        funcall_nargs = 4
        funcall_args = 0x7fffffffd260
        spread_arg = XIL(0)
        fun = <optimized out>
        sa_avail = <optimized out>
        numargs = 3
        retval = <optimized out>
#49 0x00005555557541be in funcall_subr (subr=0x555555be1f80 <Sapply>, numargs=numargs@entry=2, args=args@entry=0x7fffffffd3e8) at ../../md5i/src/eval.c:2938
        fun = <optimized out>
#50 0x00005555557520d5 in funcall_general (fun=<optimized out>, numargs=numargs@entry=2, args=args@entry=0x7fffffffd3e8) at ../../md5i/src/eval.c:2819
        original_fun = XIL(0x2f40)
#51 0x0000555555752562 in Ffuncall (nargs=3, args=0x7fffffffd3e0) at ../../md5i/src/eval.c:2873
        val = <optimized out>
#52 0x00007fffec97754d in F646275732d68616e646c652d6576656e74_dbus_handle_event_0 () at /home/md5i/.config/emacs/eln-cache/29.0.50-05c91b39/dbus-f1406cab-d60fb3e3.eln
#53 0x00005555557540eb in funcall_subr (subr=0x555556efeb48, numargs=numargs@entry=1, args=args@entry=0x7fffffffd5e0) at ../../md5i/src/eval.c:2911
        argbuf = {XIL(0), XIL(0), XIL(0), XIL(0), XIL(0), XIL(0), XIL(0), XIL(0)}
        a = <optimized out>
        fun = <optimized out>
#54 0x00005555557520d5 in funcall_general (fun=<optimized out>, numargs=numargs@entry=1, args=args@entry=0x7fffffffd5e0) at ../../md5i/src/eval.c:2819
        original_fun = XIL(0x2aaa99a69510)
#55 0x0000555555752562 in Ffuncall (nargs=nargs@entry=2, args=args@entry=0x7fffffffd5d8) at ../../md5i/src/eval.c:2873
        val = <optimized out>
#56 0x000055555574ca9e in Ffuncall_interactively (nargs=2, args=0x7fffffffd5d8) at ../../md5i/src/callint.c:260
#57 0x00005555557541be in funcall_subr (subr=0x555555be18c0 <Sfuncall_interactively>, numargs=numargs@entry=2, args=args@entry=0x7fffffffd5d8) at ../../md5i/src/eval.c:2938
        fun = <optimized out>
#58 0x00005555557520d5 in funcall_general (fun=<optimized out>, numargs=numargs@entry=2, args=args@entry=0x7fffffffd5d8) at ../../md5i/src/eval.c:2819
        original_fun = XIL(0x7a10)
#59 0x0000555555752562 in Ffuncall (nargs=nargs@entry=3, args=args@entry=0x7fffffffd5d0) at ../../md5i/src/eval.c:2873
        val = <optimized out>
#60 0x000055555574ec65 in Fcall_interactively (function=<optimized out>, record_flag=<optimized out>, keys=<optimized out>) at ../../md5i/src/callint.c:798
        arg_from_tty = false
        key_count = <optimized out>
        record_then_fail = <optimized out>
        save_this_command = <optimized out>
        save_this_original_command = <optimized out>
        save_real_this_command = <optimized out>
        save_last_command = <optimized out>
        prefix_arg = <optimized out>
        enable = <optimized out>
        up_event = XIL(0)
        form = <optimized out>
        specs = <optimized out>
        sa_avail = <optimized out>
        string_len = <optimized out>
        string = <optimized out>
        string_end = <optimized out>
        next_event = 1
        nargs = <optimized out>
        args = <optimized out>
        visargs = <optimized out>
        varies = <optimized out>
        tem = <optimized out>
        val = <optimized out>
#61 0x00007fffef2ea0c0 in F636f6d6d616e642d65786563757465_command_execute_0 () at /home/md5i/src/emacs/build/src/../native-lisp/29.0.50-05c91b39/preloaded/simple-fab5b0cf-c7860df7.eln
#62 0x0000555555754124 in funcall_subr (subr=0x7fffef733a20, numargs=numargs@entry=4, args=args@entry=0x7fffffffd988) at ../../md5i/src/eval.c:2917
        argbuf = {XIL(0x5310), XIL(0x5555556bec7d), XIL(0), XIL(0x5555556d8ee8), XIL(0x7fffefef81cb), make_fixnum(23456248539865), XIL(0x1), XIL(0)}
        a = <optimized out>
        fun = <optimized out>
#63 0x00005555557520d5 in funcall_general (fun=<optimized out>, numargs=numargs@entry=4, args=args@entry=0x7fffffffd988) at ../../md5i/src/eval.c:2819
        original_fun = XIL(0x4860)
#64 0x0000555555752562 in Ffuncall (nargs=nargs@entry=5, args=args@entry=0x7fffffffd980) at ../../md5i/src/eval.c:2873
        val = <optimized out>
#65 0x00005555556d18c5 in call4 (arg4=XIL(0x30), arg3=<optimized out>, arg2=XIL(0), arg1=XIL(0x2aaa99a69510), fn=XIL(0x4860)) at ../../md5i/src/lisp.h:3238
        prev_buffer = 0x5555578d2b50
        c = <optimized out>
        local_getcjmp = {{
            __jmpbuf = {0, 455758669174110002, 46912210638096, 0, 93825062447043, 0, 5982608783051683634, 455756194245474098},
            __mask_was_saved = 0,
            __saved_mask = {
              __val = {0, 0, 140737488345944, 0, 93825049527219, 0, 93825680071955, 0, 48, 93825680072003, 4294967295, 48, 93824993839170, 93825010299139, 0, 0}
            }
          }}
        save_jump = {{
            __jmpbuf = {0, 0, 0, 0, 0, 0, 0, 0},
            __mask_was_saved = 0,
            __saved_mask = {
              __val = {0 <repeats 16 times>}
            }
          }}
        tem = XIL(0x2aaa99a69510)
        save = XIL(0)
        previous_echo_area_message = XIL(0)
        also_record = XIL(0)
        reread = false
        recorded = false
        polling_stopped_here = false
        orig_kboard = 0x555556e29ad0
#66 read_char (commandflag=1, map=map@entry=XIL(0x55557e54dd53), prev_event=XIL(0), used_mouse_menu=used_mouse_menu@entry=0x7fffffffdc4b, end_time=end_time@entry=0x0) at ../../md5i/src/keyboard.c:2981
        prev_buffer = 0x5555578d2b50
        c = <optimized out>
        local_getcjmp = {{
            __jmpbuf = {0, 455758669174110002, 46912210638096, 0, 93825062447043, 0, 5982608783051683634, 455756194245474098},
            __mask_was_saved = 0,
            __saved_mask = {
              __val = {0, 0, 140737488345944, 0, 93825049527219, 0, 93825680071955, 0, 48, 93825680072003, 4294967295, 48, 93824993839170, 93825010299139, 0, 0}
            }
          }}
        save_jump = {{
            __jmpbuf = {0, 0, 0, 0, 0, 0, 0, 0},
            __mask_was_saved = 0,
            __saved_mask = {
              __val = {0 <repeats 16 times>}
            }
          }}
        tem = XIL(0x2aaa99a69510)
        save = XIL(0)
        previous_echo_area_message = XIL(0)
        also_record = XIL(0)
        reread = false
        recorded = false
        polling_stopped_here = false
        orig_kboard = 0x555556e29ad0
#67 0x00005555556d2692 in read_key_sequence (keybuf=keybuf@entry=0x7fffffffdd20, prompt=prompt@entry=XIL(0), dont_downcase_last=dont_downcase_last@entry=false, can_return_switch_frame=can_return_switch_frame@entry=true, fix_current_buffer=fix_current_buffer@entry=true, prevent_redisplay=prevent_redisplay@entry=false) at ../../md5i/src/keyboard.c:9932
        interrupted_kboard = 0x555556e29ad0
        interrupted_frame = 0x555557379920
        key = <optimized out>
        used_mouse_menu = false
        echo_local_start = 0
        last_real_key_start = 0
        keys_local_start = 0
        new_binding = <optimized out>
        t = 0
        echo_start = 0
        keys_start = 0
        current_binding = XIL(0x55557e54dd53)
        first_unbound = 31
        mock_input = 0
        used_mouse_menu_history = {false <repeats 30 times>}
        fkey = {
          parent = XIL(0x55555727d293),
          map = XIL(0x55555727d293),
          start = 0,
          end = 0
        }
        keytran = {
          parent = XIL(0x7fffefef115b),
          map = XIL(0x7fffefef115b),
          start = 0,
          end = 0
        }
        indec = {
          parent = XIL(0x55555727d283),
          map = XIL(0x55555727d283),
          start = 0,
          end = 0
        }
        shift_translated = false
        delayed_switch_frame = XIL(0)
        original_uppercase = XIL(0)
        original_uppercase_position = -1
        dummyflag = false
        starting_buffer = 0x5555578d2b50
        fake_prefixed_keys = XIL(0)
        first_event = XIL(0)
        second_event = <optimized out>
#68 0x00005555556d42ec in command_loop_1 () at ../../md5i/src/keyboard.c:1401
        cmd = <optimized out>
        keybuf = {make_fixnum(115), make_fixnum(62), make_fixnum(102), XIL(0xe490), XIL(0x555555c6e3b0), XIL(0x30), make_fixnum(0), XIL(0x1), XIL(0x1), make_fixnum(23456248559812), XIL(0x7fffffffddd8), XIL(0x7fffffffddd0), make_fixnum(0), XIL(0x30), XIL(0), make_fixnum(23456248578042), XIL(0), XIL(0x60), XIL(0), XIL(0), XIL(0), XIL(0x55555575191c), XIL(0xb), XIL(0xe490), XIL(0x30), XIL(0x55555bd02f75), XIL(0x55555988c563), XIL(0x60), XIL(0), XIL(0x5555556c43f0)}
        i = <optimized out>
        prev_modiff = 289400
        prev_buffer = 0x5555578d2b50
#69 0x0000555555750c55 in internal_condition_case (bfun=bfun@entry=0x5555556d3f27 <command_loop_1>, handlers=handlers@entry=XIL(0x90), hfun=hfun@entry=0x5555556c42be <cmd_error>) at ../../md5i/src/eval.c:1450
        val = <optimized out>
        c = 0x555555ecc0d0
#70 0x00005555556bd185 in command_loop_2 (handlers=handlers@entry=XIL(0x90)) at ../../md5i/src/keyboard.c:1142
        val = <optimized out>
#71 0x0000555555750bcc in internal_catch (tag=tag@entry=XIL(0xf330), func=func@entry=0x5555556bd16b <command_loop_2>, arg=arg@entry=XIL(0x90)) at ../../md5i/src/eval.c:1180
        val = <optimized out>
        c = 0x555555ecc800
#72 0x00005555556bd14d in command_loop () at ../../md5i/src/keyboard.c:1120
#73 0x00005555556c3e65 in recursive_edit_1 () at ../../md5i/src/keyboard.c:729
        val = <optimized out>
#74 0x00005555556c41fa in Frecursive_edit () at ../../md5i/src/keyboard.c:812
        buffer = <optimized out>
#75 0x00005555556bc722 in main (argc=2, argv=0x7fffffffe0c8) at ../../md5i/src/emacs.c:2447
        stack_bottom_variable = 0x55555581b845 <__libc_csu_init+69>
        no_loadup = false
        junk = 0x0
        dname_arg = 0x0
        ch_to_dir = 0x0
        original_pwd = <optimized out>
        dump_mode = <optimized out>
        skip_args = 1
        temacs = 0x0
        attempt_load_pdump = <optimized out>
        rlim = {
          rlim_cur = 10022912,
          rlim_max = 18446744073709551615
        }
        lc_all = <optimized out>
        sockfd = -1
        module_assertions = <optimized out>

Lisp Backtrace:
"redisplay_internal (C function)" (0x0)
"nntp-kill-buffer" (0xffffcb30)
"nntp-close-server" (0xffffcc60)
"gnus-close-server" (0xffffcdb8)
"gnus-close-all-servers" (0xffffce20)
"md5i-close-all-servers" (0xffffd008)
"nm--handle-new-connection" (0xffffd158)
"nm--handle-properties-changed-signal" (0xffffd268)
"apply" (0xffffd3e8)
"dbus-handle-event" (0xffffd5e0)
"funcall-interactively" (0xffffd5d8)
"command-execute" (0xffffd988)

-- 
Michael Welsh Duggan
([email-masked])