Subject: Re: bug#50096: args-out-of-range in redisplay_internal

From: Juri Linkov <[email-masked]>
Date: Tue, 17 Aug 2021 20:30:08 +0300

>> Debugger entered--Lisp error: (args-out-of-range 1737 1737)
>>   redisplay_internal\ \(C\ function\)()
>>   message("Running in foreground: %s" #("git --no-pager commit -m
>
> Is this reproducible?  If so, put a breakpoint on args_out_of_range,
> and show the C-level backtrace from the error.

It's reproducible only in the optimized build and not with -Q.
Here is the backtrace:

(gdb) bt
#0  args_out_of_range (a1=a1@entry=make_fixnum(1737), a2=a2@entry=make_fixnum(1737)) at data.c:154
#1  0x00005555555a7419 in validate_interval_range (object=XIL(0x7ffff02d2e75), begin=0x7fffffff8da8, end=<optimized out>, force=<optimized out>) at textprop.c:174
#2  0x000055555577f1e4 in Ftext_properties_at (position=<optimized out>, position@entry=make_fixnum(1737), object=<optimized out>) at textprop.c:576
#3  0x000055555577f250 in Fget_text_property (position=position@entry=make_fixnum(1737), prop=prop@entry=XIL(0x63c0), object=<optimized out>) at textprop.c:596
#4  0x0000555555660173 in face_at_buffer_position (w=0x55555603c1f8, pos=1737, endptr=0x7fffffff8f40, limit=1837, mouse=<optimized out>, base_face_id=0, attr_filter=0) at xfaces.c:6390
#5  0x00005555555c34c2 in face_at_pos (it=0x7fffffff9040, attr_filter=0) at xdisp.c:4379
#6  0x00005555555db662 in handle_face_prop (it=0x7fffffff9040) at xdisp.c:4475
#7  0x00005555555d5c15 in handle_stop (it=0x7fffffff9040) at xdisp.c:3854
#8  0x00005555555ec9f2 in init_from_display_pos (it=it@entry=0x7fffffff9040, w=w@entry=0x55555603c1f8, pos=pos@entry=0x555561f49460) at xdisp.c:3611
#9  0x00005555555ed094 in init_to_row_start (row=0x555561f49410, w=0x55555603c1f8, it=0x7fffffff9040) at xdisp.c:15032
#10 hscroll_window_tree (window=XIL(0x55555603c1fd), window@entry=XIL(0x55555e5df5bd)) at xdisp.c:15032
#11 0x00005555555ee041 in hscroll_windows (window=XIL(0x55555e5df5bd)) at xdisp.c:15124
#12 redisplay_internal () at xdisp.c:16093
#13 0x00005555555ef4bf in echo_area_display (update_frame_p=<optimized out>) at xdisp.c:12351
#14 0x00005555555ef7b1 in message3_nolog (m=<optimized out>) at xdisp.c:11274
#15 0x00005555555efaa8 in message3 (m=m@entry=XIL(0x55556286c2a4)) at xdisp.c:11204
#16 0x000055555570d2d4 in Fmessage (args=0x7fffffffc0a0, nargs=<optimized out>) at editfns.c:2876
#17 Fmessage (nargs=<optimized out>, args=0x7fffffffc0a0) at editfns.c:2844
#18 0x00005555557191b8 in eval_sub (form=<optimized out>) at lisp.h:2093
#19 0x000055555571a49d in Fprogn (body=XIL(0)) at eval.c:471
#20 Flet (args=<optimized out>) at eval.c:1057
#21 0x000055555571907f in eval_sub (form=<optimized out>) at lisp.h:2093
#22 0x000055555571934d in Fprogn (body=XIL(0)) at eval.c:471
#23 0x000055555571907f in eval_sub (form=<optimized out>) at lisp.h:2093
#24 0x000055555571907f in eval_sub (form=<optimized out>) at lisp.h:2093
#25 0x000055555571988d in Fprogn (body=XIL(0x55555e3c0d73)) at eval.c:471
#26 Fif (args=<optimized out>) at eval.c:427
#27 Fif (args=<optimized out>) at eval.c:413
#28 0x000055555571907f in eval_sub (form=<optimized out>) at lisp.h:2093
#29 0x000055555571a49d in Fprogn (body=XIL(0)) at eval.c:471
#30 Flet (args=<optimized out>) at eval.c:1057
#31 0x000055555571907f in eval_sub (form=<optimized out>) at lisp.h:2093
#32 0x000055555571a49d in Fprogn (body=XIL(0x55555e3c9293)) at eval.c:471
#33 Flet (args=<optimized out>) at eval.c:1057
#34 0x000055555571907f in eval_sub (form=<optimized out>) at lisp.h:2093
#35 0x000055555571934d in Fprogn (body=XIL(0), body@entry=XIL(0x55555e3c1a13)) at eval.c:471
#36 0x000055555570818e in Fsave_current_buffer (args=XIL(0x55555e3c1a13)) at editfns.c:867
#37 0x000055555571907f in eval_sub (form=<optimized out>) at lisp.h:2093
#38 0x000055555571a6c5 in Fprogn (body=XIL(0)) at eval.c:471
#39 FletX (args=XIL(0x55555e3c9233)) at eval.c:989
#40 0x000055555571907f in eval_sub (form=<optimized out>) at lisp.h:2093
#41 0x0000555555719c3d in Fprogn (body=XIL(0)) at eval.c:471
#42 funcall_lambda (fun=XIL(0x55555e3c90c3), nargs=10, arg_vector=0x7fffffffcac8) at eval.c:3328
#43 0x00005555557164c7 in Ffuncall (nargs=11, args=0x7fffffffcac0) at eval.c:3067
#44 0x00005555557187b8 in Fapply (nargs=6, args=0x7fffffffcbd0) at eval.c:2681
#45 0x00007fffde61c76b in ?? ()
#46 0x0000000000000000 in ?? ()

Lisp Backtrace:
"redisplay_internal (C function)" (0x0)
"message" (0xffffc0a0)
"let" (0xffffc220)
"progn" (0xffffc300)
"if" (0xffffc3c0)
"if" (0xffffc4a0)
"let" (0xffffc5f0)
"let" (0xffffc740)
"save-current-buffer" (0xffffc840)
"let*" (0xffffc960)
"vc-do-command" (0xffffcac8)
"vc-git-command" (0xffffcc98)
"vc-git-checkin" (0xffffcef8)
"apply" (0xffffd010)
"vc-call-backend" (0xffffd350)
0x619c10a0 PVEC_COMPILED
"vc-finish-logentry" (0xffffd9c0)
"funcall-interactively" (0xffffd9b8)
"log-edit-done" (0xffffdd20)
"funcall-interactively" (0xffffdd18)
"command-execute" (0xffffde88)