forked_cpid       290 ckptserializer.cpp   pid_t forked_cpid = _real_sys_fork();
forked_cpid       291 ckptserializer.cpp   if (forked_cpid == -1) {
forked_cpid       295 ckptserializer.cpp   } else if (forked_cpid > 0) {
forked_cpid       296 ckptserializer.cpp     restore_sigchld_handler_and_wait_for_zombie(forked_cpid);