Thread 1 "emacs" hit Breakpoint 1, terminate_due_to_signal (sig=6,
    backtrace_limit=40) at ../../src/emacs.c:371
371       signal (sig, SIG_DFL);
(gdb) back
#0  terminate_due_to_signal (sig=6, backtrace_limit=40)
    at ../../src/emacs.c:371
#1  0x000000000061aacd in emacs_abort () at ../../src/sysdep.c:2448
#2  0x00000000004ca88d in select_window (window=XIL(0x2d3a375),
    norecord=XIL(0x30), inhibit_point_swap=false) at ../../src/window.c:544
#3  0x00000000004caa4a in Fselect_window (window=XIL(0x2d3a375),
    norecord=XIL(0x30)) at ../../src/window.c:630
#4  0x0000000000474046 in gui_consider_frame_title (frame=XIL(0x2eb2255))
    at ../../src/xdisp.c:12318
#5  0x0000000000483e35 in redisplay_window (window=XIL(0x2d3a375),
    just_this_one_p=false) at ../../src/xdisp.c:18940
#6  0x000000000047a9b3 in redisplay_window_0 (window=XIL(0x2d3a375))
    at ../../src/xdisp.c:16179
#7  0x00000000007069ee in internal_condition_case_1 (
    bfun=0x47a971 <redisplay_window_0>, arg=XIL(0x2d3a375),
    handlers=XIL(0x7ffff4c2accb), hfun=0x47a939 <redisplay_window_error>)
    at ../../src/eval.c:1379
#8  0x000000000047a90f in redisplay_windows (window=XIL(0x2d3a375))
    at ../../src/xdisp.c:16159
#9  0x0000000000479845 in redisplay_internal () at ../../src/xdisp.c:15627
#10 0x0000000000477c11 in redisplay () at ../../src/xdisp.c:14854
#11 0x00000000005ee84b in read_char (commandflag=1, map=XIL(0x2fa0d43),
    prev_event=XIL(0), used_mouse_menu=0x7fffffffd7ef, end_time=0x0)
    at ../../src/keyboard.c:2493
#12 0x00000000005fd862 in read_key_sequence (keybuf=0x7fffffffd9f0,
    prompt=XIL(0), dont_downcase_last=false, can_return_switch_frame=true,
    fix_current_buffer=true, prevent_redisplay=false)
    at ../../src/keyboard.c:9549
#13 0x00000000005eb9d6 in command_loop_1 () at ../../src/keyboard.c:1350
#14 0x0000000000706947 in internal_condition_case (
    bfun=0x5eb590 <command_loop_1>, handlers=XIL(0x90),
    hfun=0x5ead47 <cmd_error>) at ../../src/eval.c:1355
#15 0x00000000005eb263 in command_loop_2 (ignore=XIL(0))
    at ../../src/keyboard.c:1091
#16 0x0000000000706200 in internal_catch (tag=XIL(0xd4d0),
    func=0x5eb23a <command_loop_2>, arg=XIL(0)) at ../../src/eval.c:1116
#17 0x00000000005eb205 in command_loop () at ../../src/keyboard.c:1070
#18 0x00000000005ea91c in recursive_edit_1 () at ../../src/keyboard.c:714
#19 0x00000000005eaa9e in Frecursive_edit () at ../../src/keyboard.c:786
#20 0x00000000005e3245 in main (argc=7, argv=0x7fffffffdec8)
    at ../../src/emacs.c:2059

Lisp Backtrace:
"redisplay_internal (C function)" (0x0)