GNU bug report logs - #43409
28.0.50; Segfault on non-UTF-8 path

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#43409: closed (28.0.50; Segfault on non-UTF-8 path)
Date: Tue, 15 Sep 2020 15:46:01 +0000

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Your message dated Tue, 15 Sep 2020 18:45:03 +0300
with message-id <83k0wv82o0.fsf <at> gnu.org>
and subject line Re: bug#43409: 28.0.50; Segfault on non-UTF-8 path
has caused the debbugs.gnu.org bug report #43409,
regarding 28.0.50; Segfault on non-UTF-8 path
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 28.0.50; Segfault on non-UTF-8 path
Date: Tue, 15 Sep 2020 02:16:36 +0200

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On Debian bullseye, with a file looking like this in a dired buffer:

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Hitting RET on that kills Emacs.  Running under gdb, I get this
backtrace:

#0  terminate_due_to_signal
    (sig=sig <at> entry=6, backtrace_limit=backtrace_limit <at> entry=40) at emacs.c:378
#1  0x00005555555984fe in emacs_abort () at sysdep.c:2280
#2  0x0000555555596a9a in multibyte_chars_in_text (ptr=<optimized out>, 
    ptr <at> entry=0x5555565f0870 "f\363o", nbytes=nbytes <at> entry=3)
    at character.c:447
#3  0x00005555555d412b in display_mode_element
    (it=<optimized out>, depth=<optimized out>, field_width=<optimized out>, precision=<optimized out>, elt=<optimized out>, props=<optimized out>, risky=<optimized out>) at xdisp.c:25644
#4  0x00005555555d54b0 in display_mode_element
    (it=0x7fffffffb840, depth=2, field_width=-1, precision=-1, elt=<optimized out>, props=XIL(0), risky=<optimized out>) at lisp.h:1423
#5  0x00005555555d63c2 in gui_consider_frame_title (frame=XIL(0x555555f64c45))
    at lisp.h:1007
#6  0x00005555555e15d9 in prepare_menu_bars () at xdisp.c:12666
#7  redisplay_internal () at xdisp.c:15514
#8  0x000055555568baeb in read_char
    (commandflag=1, map=XIL(0x5555563fb2b3), prev_event=XIL(0), used_mouse_menu=0x7fffffffe52b, end_time=0x0) at keyboard.c:2493
#9  0x000055555568e9c4 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:9547
#10 0x000055555569034c in command_loop_1 () at lisp.h:1007
#11 0x00005555556fbf17 in internal_condition_case
    (bfun=bfun <at> entry=0x555555690170 <command_loop_1>, handlers=handlers <at> entry=XIL(0x90), hfun=hfun <at> entry=0x555555686ad0 <cmd_error>) at eval.c:1356
#12 0x0000555555681504 in command_loop_2 (ignore=ignore <at> entry=XIL(0))
    at lisp.h:1007
#13 0x00005555556fbe71 in internal_catch
    (tag=tag <at> entry=XIL(0xd200), func=func <at> entry=0x5555556814e0 <command_loop_2>, arg=arg <at> entry=XIL(0)) at eval.c:1117
#14 0x00005555556814ab in command_loop () at lisp.h:1007
#15 0x00005555556866e6 in recursive_edit_1 () at keyboard.c:714
#16 0x0000555555686a12 in Frecursive_edit () at keyboard.c:786
#17 0x000055555559fb54 in main (argc=2, argv=<optimized out>) at emacs.c:2047

This is with

[larsi <at> stories ~]$ echo $LANG
en_US.UTF-8



In GNU Emacs 28.0.50 (build 4, x86_64-pc-linux-gnu, GTK+ Version 3.24.22, cairo version 1.16.0)
 of 2020-09-14 built on stories
Repository revision: e408f2fab24ea81f74d9b84dc83ee67d562846dc
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12008000
System Description: Debian GNU/Linux bullseye/sid


-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: https://lars.ingebrigtsen.no

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 43409-done <at> debbugs.gnu.org
Subject: Re: bug#43409: 28.0.50; Segfault on non-UTF-8 path
Date: Tue, 15 Sep 2020 18:45:03 +0300

> From: Lars Ingebrigtsen <larsi <at> gnus.org>
> Cc: 43409 <at> debbugs.gnu.org
> Date: Tue, 15 Sep 2020 17:12:08 +0200
> 
> Eli Zaretskii <eliz <at> gnu.org> writes:
> 
> > My bad, sorry: I used a wrong API for the job.  Does the below solve
> > the problem?
> 
> Yup, that fixes the problem.

Thanks, installed.

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