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bug#31312: Segmentation fault with doom-emacs, NeoTree and Zoom


From: Noam Postavsky
Subject: bug#31312: Segmentation fault with doom-emacs, NeoTree and Zoom
Date: Tue, 01 May 2018 19:10:09 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux)

martin rudalics <address@hidden> writes:

> Is w in reconsider_clip_changes the same as XWINDOW (selected_window)
> when it fails?

Nope.  In fact, doing

    break 13939 if (w != XWINDOW(selected_window))
    
triggers only just before the bad reconsider_clip_changes call.

#0  redisplay_internal () at ../../src/xdisp.c:13939
#1  0x0000000000463c16 in redisplay () at ../../src/xdisp.c:13518
#2  0x00000000005851ae in read_char (commandflag=1, map=XIL(0x5e99db3), 
prev_event=XIL(0), 
    used_mouse_menu=0x7fffffffe41f, end_time=0x0) at ../../src/keyboard.c:2480
#3  0x00000000005957c5 in read_key_sequence (keybuf=0x7fffffffe570, bufsize=30, 
prompt=XIL(0), 
    dont_downcase_last=false, can_return_switch_frame=true, 
fix_current_buffer=true, 
    prevent_redisplay=false) at ../../src/keyboard.c:9147
#4  0x0000000000581d55 in command_loop_1 () at ../../src/keyboard.c:1368
(More stack frames follow...)
(gdb) p w
$16 = (struct window *) 0x47d22f0
(gdb) p sw
$17 = (struct window *) 0x47d22f0
(gdb) p XWINDOW(selected_window)
$18 = (struct window *) 0x61109d0
(gdb) p w->contents
$19 = XIL(0)
(gdb) p XWINDOW(selected_window)->contents
$20 = XIL(0x493e565)
(gdb) xpr
Lisp_Vectorlike
PVEC_BUFFER
$21 = (struct buffer *) 0x493e560
(unsigned char *) 0x4a34568 " *NeoTree*"





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