Comment 2 for bug 1710897

StacktraceTop:
 raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
 terminate_due_to_signal (sig=sig@entry=6, backtrace_limit=backtrace_limit@entry=40) at ./debian/build-src/src/emacs.c:381
 emacs_abort () at ./debian/build-src/src/sysdep.c:2255
 x_connection_closed (dpy=dpy@entry=0xcf3000, error_message=<optimized out>, error_message@entry=0x7fff041466b0 "Connection lost to X server ':0'", ioerror=ioerror@entry=true) at ./debian/build-src/src/xterm.c:9468
 x_io_error_quitter (display=0xcf3000) at ./debian/build-src/src/xterm.c:9574