This appears to have not been fixed in 1.24.0-1ubuntu1 on the latest 20.04. It happens at occasional times when I close a window. There are some similar recent reports on the github page: https://github.com/mate-desktop/marco/issues/617 https://github.com/mate-desktop/marco/issues/661
Here's a backtrace from the core dump: Core was generated by `marco'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007f05e10699d4 in cairo_region_num_rectangles () from /usr/lib/x86_64-linux-gnu/libcairo.so.2 [Current thread is 1 (Thread 0x7f05dfb5aa80 (LWP 454768))] (gdb) bt #0 0x00007f05e10699d4 in cairo_region_num_rectangles () at /usr/lib/x86_64-linux-gnu/libcairo.so.2 #1 0x00007f05e1d3541e in () at /usr/lib/x86_64-linux-gnu/libmarco-private.so.2 #2 0x00007f05e1d37944 in () at /usr/lib/x86_64-linux-gnu/libmarco-private.so.2 #3 0x00007f05e1d38b1e in () at /usr/lib/x86_64-linux-gnu/libmarco-private.so.2 #4 0x00007f05e1d3a0c9 in () at /usr/lib/x86_64-linux-gnu/libmarco-private.so.2 #5 0x00007f05e1d42b06 in () at /usr/lib/x86_64-linux-gnu/libmarco-private.so.2 #6 0x00007f05e1d8cbb9 in () at /usr/lib/x86_64-linux-gnu/libmarco-private.so.2 #7 0x00007f05e122405f in () at /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 #8 0x00007f05e122444a in () at /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 #9 0x00007f05e11ec0f4 in gdk_display_get_event () at /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 #10 0x00007f05e12240f6 in () at /usr/lib/x86_64-linux-gnu/libgdk-3.so.0 #11 0x00007f05e1e0af9d in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #12 0x00007f05e1e0b220 in () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #13 0x00007f05e1e0b513 in g_main_loop_run () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 #14 0x0000561e8df74233 in main () ** Bug watch added: github.com/mate-desktop/marco/issues #617 https://github.com/mate-desktop/marco/issues/617 ** Bug watch added: github.com/mate-desktop/marco/issues #661 https://github.com/mate-desktop/marco/issues/661 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1863392 Title: marco crashed with SIGSEGV in INT_cairo_region_num_rectangles() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/marco/+bug/1863392/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs