Dear Chiaki, I am going to "adopt" this package as maintainer.
Then, for this report, can you try to get the backtrace? You may install xiccd-dbgsym instead of xiccd and proceed like below: (outline) edit sources.list of apt and add like: deb http://debug.mirrors.debian.org/debian-debug/ trixie-debug main sudo apt update sudo apt install xiccd-dbgsym libc6-dbgsym start xiccd then segfaults will happens coredumpctl gdb xiccd # after gdb started (gdb) bt full -- best regards Taro K., Dr/Mr.
