--- Begin Message ---
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Subject: |
29.0.60; Crash in format_mode_line_unwind_data |
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Date: |
Thu, 15 Dec 2022 19:04:30 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/30.0.50 (x86_64-pc-linux-gnu) |
0. emacs -Q
1. Evaluate:
(add-hook 'kill-buffer-hook
(lambda ()
(run-with-timer 0 nil (lambda () (tab-bar-select-tab 1)))))
2. Type:
C-x t 2
C-x k RET
Thread 1 "emacs" received signal SIGSEGV, Segmentation fault.
format_mode_line_unwind_data (target_frame=target_frame@entry=0x5555563c3310,
obuf=<optimized out>, owin=XIL(0x55555602562d),
save_proptrans=save_proptrans@entry=false) at xdisp.c:13223
13223 current_buffer = b;
(gdb) bt
#0 format_mode_line_unwind_data
(target_frame=target_frame@entry=0x5555563c3310, obuf=<optimized out>,
owin=XIL(0x55555602562d), save_proptrans=save_proptrans@entry=false) at
xdisp.c:13223
#1 0x0000555555600752 in gui_consider_frame_title (frame=XIL(0x5555563c3315))
at xdisp.c:13417
#2 0x0000555555605219 in prepare_menu_bars () at xdisp.c:13544
#3 redisplay_internal () at xdisp.c:16462
#4 0x00005555556ea03a in read_char (commandflag=1, map=XIL(0x555556770ea3),
prev_event=XIL(0), used_mouse_menu=0x7fffffffddcb, end_time=0x0) at
keyboard.c:2627
#5 0x00005555556ec658 in read_key_sequence (keybuf=<optimized out>,
prompt=XIL(0), dont_downcase_last=<optimized out>,
can_return_switch_frame=true, fix_current_buffer=true,
prevent_redisplay=<optimized out>) at keyboard.c:10074
#6 0x00005555556ee2c0 in command_loop_1 () at lisp.h:1171
#7 0x000055555576a1b7 in internal_condition_case
(bfun=bfun@entry=0x5555556ee0e0 <command_loop_1>,
handlers=handlers@entry=XIL(0x90), hfun=hfun@entry=0x5555556e11b0 <cmd_error>)
at eval.c:1474
#8 0x00005555556d986a in command_loop_2 (handlers=handlers@entry=XIL(0x90)) at
keyboard.c:1125
#9 0x000055555576a0f9 in internal_catch (tag=tag@entry=XIL(0xfa80),
func=func@entry=0x5555556d9840 <command_loop_2>, arg=arg@entry=XIL(0x90)) at
eval.c:1197
#10 0x00005555556d9806 in command_loop () at lisp.h:1171
#11 0x00005555556e0d08 in recursive_edit_1 () at keyboard.c:712
#12 0x00005555556e10b0 in Frecursive_edit () at keyboard.c:795
#13 0x00005555555b1a73 in main (argc=<optimized out>, argv=<optimized out>) at
emacs.c:2529
Lisp Backtrace:
"redisplay_internal (C function)" (0x0)
(gdb) l
13218
13219 /* If we select a window on another frame, make sure that that
13220 selection does not leave its buffer's point modified when
13221 unwinding (Bug#32777). */
13222 ASET (vector, 10, buffer);
13223 current_buffer = b;
13224 ASET (vector, 11, build_marker (current_buffer, PT, PT_BYTE));
13225 current_buffer = cb;
13226 }
13227
(gdb) p buffer
$3 = XIL(0)
This means that at this point the value of this is nil:
XWINDOW (target_frame->selected_window)->contents;
--- End Message ---
--- Begin Message ---
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Subject: |
Re: bug#60096: 29.0.60; Crash in format_mode_line_unwind_data |
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Date: |
Fri, 16 Dec 2022 09:31:36 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/30.0.50 (x86_64-pc-linux-gnu) |
>> (add-hook 'kill-buffer-hook
>> (lambda ()
>> (run-with-timer 0 nil (lambda () (tab-bar-select-tab 1)))))
>>
>> 2. Type:
>>
>> C-x t 2
>> C-x k RET
>>
>> Thread 1 "emacs" received signal SIGSEGV, Segmentation fault.
>> format_mode_line_unwind_data
>> (target_frame=target_frame@entry=0x5555563c3310, obuf=<optimized out>,
>> owin=XIL(0x55555602562d), save_proptrans=save_proptrans@entry=false) at
>> xdisp.c:13223
>> 13223 current_buffer = b;
>
> Thanks, should be fixed now on the release branch.
I confirm that it's fixed, so closing.
PS: I wonder why now *scratch* shows keybindings inside
non-standard quotation marks: "C-x C-f"? Why not 'C-x C-f'?
Or `C-x C-f'?
--- End Message ---