HelenOS sources

LOG_NO_PARENT     175 uspace/lib/c/generic/io/log.c 	default_log_id = log_create(prog_name, LOG_NO_PARENT);
LOG_NO_PARENT     217 uspace/srv/klog/klog.c 	kernel_ctx = log_create("kernel", LOG_NO_PARENT);
HelenOS homepage, sources at GitHub