GNU bug report logs - #53254
28.0.60; Crash in composition_adjust_point while typing

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Po Lu <luangruo <at> yahoo.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 28.0.60; Crash in composition_adjust_point while typing
Date: Fri, 14 Jan 2022 21:30:06 +0800

Typing a document, I got a crash with the following backtrace:

#0  0x00007f356943585c in __pthread_kill_implementation () at /lib64/libc.so.6
#1  0x00007f35693e86b6 in raise () at /lib64/libc.so.6
#2  0x000000000041db0a in terminate_due_to_signal (sig=sig <at> entry=11, backtrace_limit=backtrace_limit <at> entry=40) at emacs.c:437
#3  0x000000000041df7d in handle_fatal_signal (sig=sig <at> entry=11) at sysdep.c:1762
#4  0x000000000051a718 in deliver_thread_signal (sig=sig <at> entry=11, handler=0x41df72 <handle_fatal_signal>) at sysdep.c:1754
#5  0x000000000051a789 in deliver_fatal_thread_signal (sig=11) at sysdep.c:1774
#6  handle_sigsegv (sig=11, siginfo=<optimized out>, arg=<optimized out>) at sysdep.c:1867
#7  0x00007f35693e8760 in <signal handler called> () at /lib64/libc.so.6
#8  face_at_buffer_position (w=w <at> entry=0x3038d1b0, pos=pos <at> entry=31829, endptr=endptr <at> entry=0x7fff02e94768, limit=<optimized out>, mouse=<optimized out>, base_face_id=base_face_id <at> entry=-1, attr_filter=<optimized out>) at xfaces.c:6441
#9  0x0000000000594f66 in font_range (pos=pos <at> entry=31829, pos_byte=pos_byte <at> entry=32669, limit=limit <at> entry=0x7fff02e94808, w=w <at> entry=0x3038d1b0, face=face <at> entry=0x0, string=string <at> entry=0x0, ch=62) at font.c:3928
#10 0x00000000005e4423 in autocmp_chars (rule=0x4ee2945, charpos=charpos <at> entry=31829, bytepos=32669, limit=31832, limit <at> entry=31840, win=win <at> entry=0x3038d1b0, face=face <at> entry=0x0, string=0x0, direction=0x0, ch=62) at composite.c:924
#11 0x00000000005e7dd2 in find_automatic_composition (pos=pos <at> entry=31839, limit=31839, limit <at> entry=-1, backlim=backlim <at> entry=-1, start=start <at> entry=0x7fff02e94938, end=end <at> entry=0x7fff02e94940, gstring=gstring <at> entry=0x7fff02e94948, string=0x0) at composite.c:1682
#12 0x00000000005e8afd in composition_adjust_point (last_pt=last_pt <at> entry=31839, new_pt=new_pt <at> entry=31839) at composite.c:1769
#13 0x0000000000512c93 in command_loop_1 () at keyboard.c:1608
#14 0x000000000057c867 in internal_condition_case (bfun=bfun <at> entry=0x511c00 <command_loop_1>, handlers=handlers <at> entry=0x90, hfun=hfun <at> entry=0x508730 <cmd_error>) at eval.c:1453
#15 0x0000000000502aca in command_loop_2 (handlers=handlers <at> entry=0x90) at keyboard.c:1133
#16 0x000000000057c7c1 in internal_catch (tag=tag <at> entry=0xe7f0, func=func <at> entry=0x502ab0 <command_loop_2>, arg=arg <at> entry=0x90) at eval.c:1184
#17 0x0000000000502a6f in command_loop () at keyboard.c:1111
#18 0x000000000050832c in recursive_edit_1 () at keyboard.c:720
#19 0x0000000000508673 in Frecursive_edit () at keyboard.c:803
#20 0x0000000000425a73 in main (argc=1, argv=<optimized out>) at emacs.c:2310

Does anyone know why this is?  I hope this hasn't been fixed in the
pretests (if so, sorry for the report), but I couldn't find anything
relevant.  Thanks in advance.

In GNU Emacs 28.0.60 (build 2, x86_64-pc-linux-gnu, X toolkit, cairo version 1.17.4, Xaw3d scroll bars)
 of 2021-11-16 built on trinity
Repository revision: e852822f3db469c985bf022651f184d6ff2c518a
Repository branch: emacs-28
Windowing system distributor 'The X.Org Foundation', version 11.0.12101003
System Description: Fedora Linux 35 (Workstation Edition)

Configured using:
 'configure --with-x-toolkit=lucid --with-native-compilation
 --cache-file=/tmp/ccache'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON
LCMS2 LIBSELINUX LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY
PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS X11
XAW3D XDBE XIM XPM LUCID ZLIB

Important settings:
  value of $LANG: en_GB.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

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