Date: Sat, 16 May 2009 12:27:22 -0500 From: Kirk Strauser <kirk@strauser.com> To: FreeBSD Questions ML <freebsd-questions@freebsd.org> Subject: Limiting resources in cron jobs Message-ID: <43B3CD0F-BDCB-4DEC-9E17-E0D7A8287FDE@strauser.com>
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I have a jail where the www user runs hourly cron jobs. On rare
occasion, these jobs get stuck in a seemingly infinite CPU loop - a
Python script calls Ghostscript and that child process never returns -
and I have to manually kill them. I'd like to use login.conf to set
resource limits so that I don't have to do this myself, but they don't
seem to be applied. Here's a snippet of my login.conf:
www:\
:cputime=300:\
:tc=default:
I've run "cap_mkdb /etc/login.conf" to make that live. Then, I used
vipw to change www's class:
www:*:80:80:www:0:0:World Wide Web Owner:/nonexistent:/usr/sbin/nologin
However, I can trigger the error condition and watch the child
Ghostscript process run for 6-7 minutes before I kill it.
It's my understand that cron uses the limits from login.conf. Any
idea what I might be doing wrong and causing it not to do so?
--
Kirk Strauser
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