Hi. There.

,---- [ previous thread about this behaviour ]
| https://lists.gnu.org/archive/html/emacs-devel/2022-04/msg00922.html
`----

In case You need to put the breakpoints. You would need to add three lines at the end of src/.gdbinit
--8<---------------cut here---------------start------------->8---
set breakpoint pending on
b xterm.c:x_delete_terminal
b xterm.c:x_error_handler
--8<---------------cut here---------------end--------------->8---

REQUIREMENT-for-reproducing-the-bug: having xephyr installed and xterm or wmaker
launching xephyr:
--8<---------------cut here---------------start------------->8---
(Xephyr -ac -br -noreset -screen 1024x768 :1.0 &);sleep 1;(GNUSTEP_USER_ROOT="${HOME}/GNUstep"  DISPLAY=:1.0 wmaker &)
--8<---------------cut here---------------end--------------->8---

Steps for reproducing the bug:
1. gdb -i=mi --args ./emacs -Q -f toogle-debug-on-error --fg-daemon
2. @host emacsclient -c -n --eval '(eshell)'
3. on eshell-buffer emacs-version Return
4. @remoteMachine emacsclient -c -n ~/.bashrc {requires xephyr launched see above}
5. M-x dired-jump
6. M-x close-display-connection 

Expected Output:
emacs commits suicide
So Both opened frames are closed

NOTE: on gdb window You are going to get the message
'X protocol error: RenderBadGlyph (invalid Glyph parameter) on protocol request 139'
NOTE-THREE: this problem is not reproducible on emacs-29 
Simple-Question: How to know or capture|cleaning the X error before calling close-display-connection?

IDEA: I think the step 4 {opening a new X frame on a different DISPLAY causes the error}

VIDEO-of-debug-session: https://disk.yandex.com/i/vK-VEOTjP5_OGA
VIDEO-DETAILS:
gdb runs on DISPLAY 1.0 and the second frame is opened in DISPLAY :0 {second display not been showed on the video}

0m10s starting gdb
0m40s starting first emacs frame on DISPLAY 1:0
1m06s starting second frame on DISPLAY :0
1m16s doing M-x dired-jump on the second frame {not showed on video}
1m16s back to the video focused
1m30s M-x close-display-connection on first emacs frame
1m40s back on the gdb terminal {which shows the hitted breakpoints}
1m50s end the gdb session
1m57s ending the video

JIC: I am attaching three backtraces