11997 fork() = 11999
11999 fork() = 2 /* 12000 in strace's PID NS */
12000 +++ exited with 0 +++
11999 --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=65534, si_status=0, si_utime=0, si_stime=0} ---
11999 +++ exited with 0 +++
11997 --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=11999, si_uid=65534, si_status=0, si_utime=0, si_stime=0} ---
11997 +++ exited with 0 +++
