debugging systemd service in Raspbian 8 through core dumps
Taking notes on what I did to enable core dumps from a service running under systemd. Not sure which of these were strictly necessary, though. Added to /etc/security/limits.conf * soft core unlimited * hard core unlimited Add ed to /etc/sysctl.d/core.conf kernel.core_pattern = core-%e-sig%s-user%u-group%g-pid%p-time%t kernel.core_uses_pid = 1 fs.suid_dumpable = 2 Add ed to /lib/systemd/system/ my-service .ser vi ce [Service] -section LimitCORE=infinity created world-writable dump directory sudo mkdir -p /var/lib/coredumps sudo chown nobody:nogroup /var/lib/coredumps sudo chmod a+w /var/lib/coredumps/ Verified that limits are ok grep core /proc/$(pgrep damon-process-name-here )/limits Verified that core gets dumped sudo kill -SIGABRT $(pgrep damon-process-name-here ) gdb /bin/ my-daemon /var/lib/coredumps/core*