Thread 1 "emacs" received signal SIGSEGV, Segmentation fault. mark_interval_tree (i=0x60) at alloc.c:1537 1537 if (i && !interval_marked_p (i)) (gdb) bt #0 mark_interval_tree (i=0x60) at alloc.c:1537 #1 0x00000000005b2589 in process_mark_stack (base_sp=0) at alloc.c:7246 #2 0x00000000005b2c4b in mark_object (obj=) at alloc.c:7476 #3 0x0000000000560dc8 in mark_kboards () at keyboard.c:14003 #4 0x00000000005b3490 in garbage_collect () at alloc.c:6594 #5 0x00000000005b4091 in maybe_garbage_collect () at alloc.c:6497 #6 0x00000000005d4f65 in maybe_gc () at ~/installs/emacs/src/lisp.h:5723 #7 Ffuncall (nargs=nargs@entry=3, args=args@entry=0x7fffffff7170) at eval.c:3017 #8 0x000000000044689a in funcall_with_backtraces (nargs=nargs@entry=3, args=args@entry=0x7fffffff7170) at xdisp.c:3081 #9 0x00000000005d3879 in internal_condition_case_n (bfun=bfun@entry=0x446870 , nargs=nargs@entry=3, args=args@entry=0x7fffffff7170, handlers=handlers@entry=XIL(0x30), hfun=hfun@entry=0x45a090 ) at eval.c:1617 #10 0x0000000000447c53 in dsafe__call (inhibit_quit=inhibit_quit@entry=true, f=0x446870 , nargs=nargs@entry=3, args=args@entry=0x7fffffff7170) at xdisp.c:3067 #11 0x0000000000475650 in dsafe__call (args=0x7fffffff7170, nargs=3, f=, inhibit_quit=true) at xdisp.c:3056 #12 dsafe_eval (sexpr=) at xdisp.c:3103 #13 display_mode_element (it=it@entry=0x7fffffff7300, depth=2, depth@entry=1, field_width=0, precision=precision@entry=-10, elt=, props=props@entry=XIL(0), risky=false) at xdisp.c:27875 #14 0x0000000000475735 in display_mode_element (it=it@entry=0x7fffffff7300, depth=1, depth@entry=0, field_width=field_width@entry=-1, precision=precision@entry=-1, elt=, elt@entry=XIL(0x7ffff4ec06b3), props=props@entry=XIL(0), risky=false) at xdisp.c:27961 #15 0x0000000000476522 in gui_consider_frame_title (frame=XIL(0xfaabf5)) at xdisp.c:13826 #16 0x000000000048ddf3 in redisplay_window (window=, just_this_one_p=just_this_one_p@entry=false) at xdisp.c:21015 #17 0x000000000049165b in redisplay_window_0 (window=window@entry=XIL(0xedc1f5)) at xdisp.c:18011 #18 0x00000000005d3734 in internal_condition_case_1 (bfun=bfun@entry=0x491630 , arg=arg@entry=XIL(0xedc1f5), handlers=, hfun=hfun@entry=0x44aec0 ) at eval.c:1561 --Type for more, q to quit, c to continue without paging-- #19 0x0000000000447a15 in redisplay_windows (window=XIL(0xedc1f5)) at xdisp.c:17980 #20 0x000000000047a276 in redisplay_internal () at xdisp.c:17380 #21 0x000000000047b6a5 in redisplay () at xdisp.c:16561 #22 0x00000000005597db in read_char (commandflag=1, map=map@entry=XIL(0x1fa9803), prev_event=XIL(0), used_mouse_menu=used_mouse_menu@entry=0x7fffffffdbfb, end_time=end_time@entry=0x0) at keyboard.c:2685 #23 0x000000000055c028 in read_key_sequence (keybuf=keybuf@entry=0x7fffffffdd30, 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, disable_text_conversion_p=false) at keyboard.c:10706 #24 0x000000000055e196 in command_loop_1 () at keyboard.c:1427 #25 0x00000000005d36a7 in internal_condition_case (bfun=bfun@entry=0x55dfe0 , handlers=handlers@entry=XIL(0x90), hfun=hfun@entry=0x551700 ) at eval.c:1537 #26 0x0000000000549d7a in command_loop_2 (handlers=handlers@entry=XIL(0x90)) at keyboard.c:1166 #27 0x00000000005d3601 in internal_catch (tag=tag@entry=XIL(0x10830), func=func@entry=0x549d60 , arg=arg@entry=XIL(0x90)) at eval.c:1217 #28 0x0000000000549d1f in command_loop () at keyboard.c:1144 #29 0x00000000005512c3 in recursive_edit_1 () at keyboard.c:753 #30 0x000000000055162e in Frecursive_edit () at keyboard.c:836 #31 0x000000000042c70b in main (argc=, argv=) at emacs.c:2624 Lisp Backtrace: "Automatic GC" (0x0) "eval" (0xffff7178) "redisplay_internal (C function)" (0x0) (gdb) xbacktrace "Automatic GC" (0x0) "eval" (0xffff7178) "redisplay_internal (C function)" (0x0) (gdb)