It is a single processor system. Those cron scripts are to verify
whether my processes are run. So, there isn't such simultaneous runs.
They are small scripts, that send a SIGCHLD to the processes they are
responsible for, and if they don't find the processes running, they
restarts them. I've been surprised because this hadn't happened before I
upgraded to 5.3-p13. Not only my scripts caused this, even the atrun,
which is a default entry in the stock /etc/crontab.
This can happen on SMP machines if you exec a lot of processes at once
(more than 16 simultaneous execs). 5.4 contains the
vm.exec_map_entries tunable that allows you to increase this number.
Kris
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