--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27132, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27131, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27130, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=27133, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
+++ exited with 0 +++