Re: [MPS-test] scratch/igc branch (commit: 42731228d24) crashed

[Eval Exec <execvy@gmail.com>]

I enter `coredumpctl gdb`,
got this:
```(gdb) p pixel_to_char_size
$1 = {void (Dimension, Dimension, int *, int *, EmacsFrame)} 0x69e310
<pixel_to_char_size>
```

On Mon, Aug 5, 2024 at 11:12 PM Gerd Möllmann <gerd.moellmann@gmail.com> wrote:
>
> Eval Exec <execvy@gmail.com> writes:
>
> > Hello,
> >
> > I wanted to help test the scratch/igc branch, so I compiled it from
> > commit 42731228d24.
> >
> > Then I build it by
> > ```bash
> > make extraclean
> > ./autogen.sh \
> >   && ./configure \
> >   --prefix=$(realpath ../emacs-build)\
> >   --with-mps \
> >   --with-imagemagick \
> >   --with-modules --with-x-toolkit=lucid --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 -j20 install
> >
> > ```
> >
> > It works perfectly for the first hour, but then it crashes, and I
> > don't know how to reproduce the issue.
> >
> > I think the crash is caused by "window size adjustments"
> >
> > ```
> > (gdb) bt
> > #0  0x00007f47afea2efc in __pthread_kill_implementation () from
> > /nix/store/dbcw19dshdwnxdv5q2g6wldj6syyvq7l-glibc-2.39-52/lib/libc.so.6
> > #1  0x00007f47afe52e86 in raise () from
> > /nix/store/dbcw19dshdwnxdv5q2g6wldj6syyvq7l-glibc-2.39-52/lib/libc.so.6
> > #2  0x00000000004243a4 in terminate_due_to_signal (sig=sig@entry=8,
> > backtrace_limit=backtrace_limit@entry=40) at emacs.c:470
> > #3  0x00000000004248fc in handle_fatal_signal (sig=sig@entry=8) at sysdep.c:1800
> > #4  0x000000000056f568 in deliver_thread_signal (sig=8,
> > handler=0x4248f1 <handle_fatal_signal>) at sysdep.c:1792
> > #5  0x000000000056f669 in deliver_fatal_thread_signal (sig=<optimized
> > out>) at sysdep.c:1812
> > #6  <signal handler called>
> > #7  0x000000000069e35e in pixel_to_char_size
> > (pixel_width=pixel_width@entry=482,
> > pixel_height=pixel_height@entry=76,
> > char_width=char_width@entry=0x7ffced20da38,
>
> Assuming this is an MPS build (please check with (featurep 'mps)).
>
> I can't see anything obvious from the backtrace. Can you try to look at
> pixel_to_char_size in GDB? Or describe how to reproduce this? I'm myself
> on macOS, so cannot really help much in this case, I guess.