the "p *face" in "frame 9" is:
```
(gdb) frame 9
#9 0x00000000006dd64d in fontset_font (fontset=fontset@entry=0x0,
c=c@entry=127802, face=face@entry=0x13fec610, id=-1) at
fontset.c:793
793 rfont_def = fontset_find_font (fontset, c, face, id, 0);
(gdb) p *face
$1 = {lface = {0x8220, 0x28bdef4, 0x28bdf34, 0xe340, 0x16a,
0xe340, 0xe340, 0x0, 0x0, 0x4417994, 0x233c9c4, 0x0, 0x0, 0x0,
0x7f9ea6b05d63, 0xbdc613ad, 0x0, 0x2aabee4, 0x13500, 0x0}, id =
40, gc = 0x0, stipple = 0,
foreground = 4288059542, background = 4278190080, underline_color
= 0, overline_color = 0, strike_through_color = 0, box_color =
4281545523, font = 0x1e4970c0, fontset = 26,
box_vertical_line_width = -1,
box_horizontal_line_width = -1,
underline_pixels_above_descent_line = 0, box = FACE_SIMPLE_BOX,
underline = FACE_NO_UNDERLINE, use_box_color_for_shadows_p = true,
overline_p = false, strike_through_p = false,
foreground_defaulted_p = false, background_defaulted_p = false,
underline_defaulted_p = false, overline_color_defaulted_p = false,
strike_through_color_defaulted_p = false, box_color_defaulted_p =
true,
underline_at_descent_line_p = false, tty_bold_p = false,
tty_italic_p = false, tty_reverse_p = false, tty_strike_through_p
= false, colors_copied_bitwise_p = true, overstrike = false, hash
= 322003229,
next = 0x54da8550, prev = 0x4d7343a0, ascii_face = 0x4d7343a0,
extra = 0x0}
(gdb)
```
c is ?🌺 . Are you using that character in your mode line, by anychance? Does it show up for you in Emacs?
```
after I source the `/home/exec/Projects/git.savannah.gnu.org/git/emacs/src/.gdbinit` file in gdb. then I switch to frame 9:
got:
```
(gdb) frame 9
#9 0x00000000006dd64d in fontset_font
(fontset=fontset@entry=XIL(0), c=c@entry=127802,
face=face@entry=0x13fec610, id=-1) at fontset.c:793
793 rfont_def = fontset_find_font (fontset, c, face, id, 0);
(gdb) p *face
$4 = {
lface = {XIL(0x8220), XIL(0x28bdef4), XIL(0x28bdf34),
XIL(0xe340), make_fixnum(90), XIL(0xe340), XIL(0xe340), XIL(0),
XIL(0), XIL(0x4417994), XIL(0x233c9c4), XIL(0), XIL(0), XIL(0),
XIL(0x7f9ea6b05d63),
XIL(0xbdc613ad), XIL(0), XIL(0x2aabee4), XIL(0x13500),
XIL(0)},
id = 40,
gc = 0x0,
stipple = 0,
foreground = 4288059542,
background = 4278190080,
underline_color = 0,
overline_color = 0,
strike_through_color = 0,
box_color = 4281545523,
font = 0x1e4970c0,
fontset = 26,
box_vertical_line_width = -1,
box_horizontal_line_width = -1,
underline_pixels_above_descent_line = 0,
box = FACE_SIMPLE_BOX,
underline = FACE_NO_UNDERLINE,
use_box_color_for_shadows_p = true,
overline_p = false,
strike_through_p = false,
foreground_defaulted_p = false,
background_defaulted_p = false,
underline_defaulted_p = false,
overline_color_defaulted_p = false,
strike_through_color_defaulted_p = false,
box_color_defaulted_p = true,
underline_at_descent_line_p = false,
tty_bold_p = false,
tty_italic_p = false,
tty_reverse_p = false,
tty_strike_through_p = false,
colors_copied_bitwise_p = true,
overstrike = false,
hash = 322003229,
next = 0x54da8550,
prev = 0x4d7343a0,
ascii_face = 0x4d7343a0,
extra = 0x0
}
(gdb)
```
"Eval EXEC" <execvy@gmail.com> writes:I'm help to tesing Emacs master branch (commit: 40eecd594ac) on Linux.Thank you!I compile emacs source code by: ```bash make extraclean ./autogen.sh \ && ./configure \ --prefix=$(realpath ../emacs-build/$(git branch --show-current | sed 's/\//_/g'))\ --with-imagemagick --with-xwidgets \ --with-modules --with-x-toolkit=gtk3 --without-compress-install \ --without-toolkit-scroll-bars --with-native-compilation --with-mailutils\ --with-tree-sitter --with-xinput2 \ --with-dbus --with-native-compilation=aot \ --with-file-notification=inotify\ && make -j30 install ```You might want to consider adding --enable-checking and CFLAGS="-O0 -g3 -ggdb" or equivalent to that until this bug has been found.When I using emacs, I got crash, the backtrace is : ``` line to your configuration file "/home/exec/.config/gdb/gdbinit". For more information about this security protection see the "Auto-loading safe path" section in the GDB manual. E.g., run from the shell: info "(gdb)Auto-loading safe path" warning: File "/nix/store/x47hg342iyiw50c1fhqjzz4n0rqy3dhh-isl-0.20/lib/libisl.so.19.1.0-gdb.py" auto-loading has been declined by your `auto-load safe-path' set to "$debugdir:$datadir/auto-load:/nix/store/40yjzm7r5ki59kkk9423dnwbm86x7pyd-gcc-13.2.0-lib". (gdb) c The program is not being run. (gdb) bt #0 0x00007f9eaeea2efc in __pthread_kill_implementation () from /nix/store/dbcw19dshdwnxdv5q2g6wldj6syyvq7l-glibc-2.39-52/lib/libc.so.6 #1 0x00007f9eaee52e86 in raise () from /nix/store/dbcw19dshdwnxdv5q2g6wldj6syyvq7l-glibc-2.39-52/lib/libc.so.6 #2 0x0000000000473791 in terminate_due_to_signal (sig=sig@entry=11, backtrace_limit=backtrace_limit@entry=40) at emacs.c:469 #3 0x0000000000473ccd in handle_fatal_signal (sig=sig@entry=11) at sysdep.c:1800 #4 0x00000000005c4bf8 in deliver_thread_signal (sig=sig@entry=11, handler=0x473cc2 <handle_fatal_signal>) at sysdep.c:1792 #5 0x00000000005c4c7c in deliver_fatal_thread_signal (sig=11) at sysdep.c:1812 #6 handle_sigsegv (sig=11, siginfo=<optimized out>, arg=<optimized out>) at sysdep.c:1950 #7 <signal handler called> #8 fontset_find_font (fontset=fontset@entry=0x0, c=c@entry=127802, face=face@entry=0x13fec610, charset_id=charset_id@entry=-1, fallback=fallback@entry=false) at /home/exec/Projects/git.savannah.gnu.org/git/emacs/src/lisp.h:2127 #9 0x00000000006dd64d in fontset_font (fontset=fontset@entry=0x0, c=c@entry=127802, face=face@entry=0x13fec610, id=-1) at fontset.c:793Do you still have the core file? Can you print *face in this stack frame? The relevant gdb commands are "frame 9" followed by "p *face". c is ?🌺 . Are you using that character in your mode line, by any chance? Does it show up for you in Emacs?I believe the crash is related to the font, but I can't reproduce it. It happens about once a day.What would also be helpful would be to source .gdbinit from your src/ directory, (gdb: "source/home/exec/Projects/git.savannah.gnu.org/git/emacs/src/.gdbinit"), then "pp Vfontset_table" to see how large it is. Thanks! Pip