$ gdb virtualplanet GNU gdb (GDB) Fedora 8.0.1-30.fc27 Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from virtualplanet...Reading symbols from /usr/lib/debug/usr/bin/virtualplanet-2.0-6.fc27.x86_64.debug...done. done. (gdb) run Starting program: /usr/bin/virtualplanet Missing separate debuginfos, use: dnf debuginfo-install glibc-2.26-16.fc27.x86_64 [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Detaching after fork from child process 6770. [New Thread 0x7fffe1ce6700 (LWP 6771)] [New Thread 0x7fffe0f89700 (LWP 6772)] [New Thread 0x7fffdbfff700 (LWP 6773)] [New Thread 0x7fffdb7fe700 (LWP 6774)] [New Thread 0x7fffdaffd700 (LWP 6775)] [New Thread 0x7fffda7fc700 (LWP 6776)] [New Thread 0x7fffd9ffb700 (LWP 6777)] [New Thread 0x7fffd97fa700 (LWP 6778)] [Thread 0x7fffd97fa700 (LWP 6778) exited] [New Thread 0x7fffd97fa700 (LWP 6779)] [FORMS.PP] ExceptionOccurred Sender=EListError Exception=Cannot use find on unsorted list Stack trace: $000000000052C8B2 $0000000000420C25 TApplication.HandleException Cannot use find on unsorted list Stack trace: $000000000052C8B2 $0000000000420C25 [New Thread 0x7fffd8df6700 (LWP 6780)] [New Thread 0x7fffb7fff700 (LWP 6781)] [Thread 0x7fffd97fa700 (LWP 6779) exited] [Thread 0x7fffd9ffb700 (LWP 6777) exited] [Thread 0x7fffda7fc700 (LWP 6776) exited] [Thread 0x7fffdaffd700 (LWP 6775) exited] [Thread 0x7fffdb7fe700 (LWP 6774) exited] [Thread 0x7fffdbfff700 (LWP 6773) exited] [Thread 0x7fffe0f89700 (LWP 6772) exited] [Thread 0x7fffe1ce6700 (LWP 6771) exited] Thread 1 "virtualplanet" received signal SIGSEGV, Segmentation fault. 0x00007ffff4e794bc in _dl_catch_error () from /lib64/libc.so.6 Missing separate debuginfos, use: dnf debuginfo-install adwaita-gtk2-theme-3.22.3-5.fc27.x86_64 atk-2.26.1-1.fc27.x86_64 bzip2-libs-1.0.6-24.fc27.x86_64 cairo-1.15.8-1.fc27.x86_64 elfutils-libelf-0.170-1.fc27.x86_64 expat-2.2.5-1.fc27.x86_64 fontconfig-2.12.6-4.fc27.x86_64 freetype-2.8-6.fc27.x86_64 gdk-pixbuf2-2.36.11-1.fc27.x86_64 glib2-2.54.2-1.fc27.x86_64 graphite2-1.3.10-3.fc27.x86_64 gtk2-2.24.31-6.fc27.x86_64 gvfs-client-1.34.1-1.fc27.x86_64 harfbuzz-1.4.8-1.fc27.x86_64 libX11-1.6.5-4.fc27.x86_64 libX11-xcb-1.6.5-4.fc27.x86_64 libXau-1.0.8-9.fc27.x86_64 libXcomposite-0.4.4-11.fc27.x86_64 libXcursor-1.1.14-10.fc27.x86_64 libXdamage-1.1.4-11.fc27.x86_64 libXext-1.3.3-7.fc27.x86_64 libXfixes-5.0.3-4.fc27.x86_64 libXi-1.7.9-4.fc27.x86_64 libXinerama-1.1.3-9.fc27.x86_64 libXrandr-1.5.1-4.fc27.x86_64 libXrender-0.9.10-4.fc27.x86_64 libXxf86vm-1.1.4-6.fc27.x86_64 libblkid-2.30.2-1.fc27.x86_64 libcroco-0.6.12-3.fc27.x86_64 libdatrie-0.2.9-6.fc27.x86_64 libdrm-2.4.88-1.fc27.x86_64 libffi-3.1-14.fc27.x86_64 libgcc-7.2.1-2.fc27.x86_64 libglvnd-1.0.0-1.fc27.x86_64 libglvnd-glx-1.0.0-1.fc27.x86_64 libmount-2.30.2-1.fc27.x86_64 libpasastro-1.0-10.20160111svn.fc27.x86_64 libpng-1.6.31-1.fc27.x86_64 librsvg2-2.40.19-1.fc27.x86_64 libselinux-2.7-2.fc27.x86_64 libstdc++-7.2.1-2.fc27.x86_64 libthai-0.1.25-4.fc27.x86_64 libuuid-2.30.2-1.fc27.x86_64 libxcb-1.12-5.fc27.x86_64 libxml2-2.9.5-2.fc27.x86_64 libxshmfence-1.2-6.fc27.x86_64 llvm-libs-4.0.1-3.fc27.x86_64 mesa-dri-drivers-17.2.4-2.fc27.x86_64 mesa-libGL-17.2.4-2.fc27.x86_64 mesa-libGLU-9.0.0-13.fc27.x86_64 mesa-libglapi-17.2.4-2.fc27.x86_64 ncurses-libs-6.0-13.20170722.fc27.x86_64 pango-1.40.14-1.fc27.x86_64 pcre-8.41-3.fc27.x86_64 pcre2-10.30-2.fc27.x86_64 pixman-0.34.0-4.fc27.x86_64 sssd-client-1.16.0-4.fc27.x86_64 xz-libs-5.2.3-4.fc27.x86_64 zlib-1.2.11-4.fc27.x86_64