Doomsday Engine

dave@beast:~$ doomsday -vvv
QSocketNotifier: Can only be used with threads started with QThread
Segmentation fault (core dumped)
dave@beast:~$

dave@beast:~$ gdb doomsday
GNU gdb (Ubuntu 15.0.50.20240403-0ubuntu1) 15.0.50.20240403-git
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Reading symbols from doomsday...

This GDB supports auto-downloading debuginfo from the following URLs:
<https://debuginfod.ubuntu.com>
Enable debuginfod for this session? (y or [n]) n
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To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.
(No debugging symbols found in doomsday)
(gdb) start
Temporary breakpoint 1 at 0x19e770
Starting program: /usr/bin/doomsday
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
warning: could not find '.gnu_debugaltlink' file for /lib/x86_64-linux-gnu/libopusfile.so.0
warning: could not find '.gnu_debugaltlink' file for /lib/x86_64-linux-gnu/libpulse.so.0
warning: could not find '.gnu_debugaltlink' file for /lib/x86_64-linux-gnu/libglib-2.0.so.0
warning: could not find '.gnu_debugaltlink' file for /lib/x86_64-linux-gnu/libpulse-simple.so.0
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/pipewire-0.3/jack/libjack.so.0
warning: could not find '.gnu_debugaltlink' file for /lib/x86_64-linux-gnu/libgmodule-2.0.so.0
warning: could not find '.gnu_debugaltlink' file for /lib/x86_64-linux-gnu/libgobject-2.0.so.0
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-16.1.so
warning: could not find '.gnu_debugaltlink' file for /lib/x86_64-linux-gnu/libtinfo.so.6
warning: could not find '.gnu_debugaltlink' file for /lib/x86_64-linux-gnu/libbrotlidec.so.1
warning: could not find '.gnu_debugaltlink' file for /lib/x86_64-linux-gnu/libcap.so.2
warning: could not find '.gnu_debugaltlink' file for /lib/x86_64-linux-gnu/libbrotlicommon.so.1
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/spa-0.2/support/libspa-support.so
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/spa-0.2/support/libspa-journal.so

Temporary breakpoint 1, 0x000055555559e770 in main ()
(gdb) step
Single stepping until exit from function main,
which has no line number information.
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqwayland-generic.so
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/qt5/plugins/platforminputcontexts/libibusplatforminputcontextplugin.so
[New Thread 0x7ffff06006c0 (LWP 927284)]
QSocketNotifier: Can only be used with threads started with QThread
warning: could not find '.gnu_debugaltlink' file for /lib/x86_64-linux-gnu/libgdk-3.so.0
warning: could not find '.gnu_debugaltlink' file for /lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0
[New Thread 0x7fffeec006c0 (LWP 927286)]
[New Thread 0x7fffee2006c0 (LWP 927287)]
[New Thread 0x7fffed8006c0 (LWP 927288)]
[New Thread 0x7fffece006c0 (LWP 927289)]
[New Thread 0x7fffe7e006c0 (LWP 927290)]
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/gio/modules/libgvfsdbus.so
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/gvfs/libgvfscommon.so
[New Thread 0x7fffe74006c0 (LWP 927291)]
[New Thread 0x7fffe6a006c0 (LWP 927292)]
[New Thread 0x7fffe60006c0 (LWP 927293)]
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/qt5/plugins/bearer/libqconnmanbearer.so
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/qt5/plugins/bearer/libqgenericbearer.so
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/qt5/plugins/bearer/libqnmbearer.so
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/qt5/plugins/wayland-graphics-integration-client/libqt-plugin-wayland-egl.so
[New Thread 0x7fffe56006c0 (LWP 927295)]
[New Thread 0x7fffe4c006c0 (LWP 927296)]
[New Thread 0x7fffd9c006c0 (LWP 927297)]
[New Thread 0x7fffd92006c0 (LWP 927298)]
[New Thread 0x7fffcfe006c0 (LWP 927299)]
[New Thread 0x7fffcf4006c0 (LWP 927300)]
warning: could not find '.gnu_debugaltlink' file for /usr/lib/x86_64-linux-gnu/qt5/plugins/wayland-shell-integration/libxdg-shell.so

Thread 1 "doomsday" received signal SIGSEGV, Segmentation fault.
0x00007ffff5507b24 in _XFlush () from /lib/x86_64-linux-gnu/libX11.so.6
(gdb)