Hello Alf, maybe we can get more context of this crash by doing one of the following:
- Install gdb and run linphone like this: script -c "gdb -q -ex 'set width 0' -ex 'set pagination off' -ex 'run' -ex 'bt' -ex 'bt full' -ex 'detach' -ex 'quit' --args linphonec -d 5 -l linphone-debug" -a gdb_linphone_$(date +%Y-%m-%d_%H-%M-%S).log The created file might contain a backtrace, that could help here. - Install a core dump collector like - systemd-coredump: should output a backtrace without debug symbol information right into the journal. Alternatively one could list the crashes happend since this boot by: coredumpctl list And attach get a backtrace from gdb from this by: coredumpctl gdb <PID> bt bt full quit - corekeeper: should also collect core dumps which could be inspected by: gdb -q $(which linphonec) --core /var/crash/user/coredump bt bt full quit All the ways might be improved by installing the debug information packages described in [1], e.g. linphone-nogtk-dbgsym. Adding these packages for the shared libraries, shown in the backtrace, helps further. Kind regards, Bernhard [1] https://wiki.debian.org/HowToGetABacktrace#Installing_the_debugging_symbols