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Date:      Fri, 27 Jul 2012 00:16:54 -0600
From:      Chad Leigh Shire.Net LLC <chad@shire.net>
To:        FreeBSD Mailing List <freebsd-questions@freebsd.org>
Cc:        Chad Leigh <chad@shire.net>
Subject:   Apache FCGI in a a jail under FBSD 9 won't start due to shared memory creation error
Message-ID:  <DECF6592-1F64-4BED-81F8-64DE811F10DE@shire.net>

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Hi

I run systems using FreeBSD 9.0

FreeBSD utah.XXXXXXXcom 9.0-STABLE FreeBSD 9.0-STABLE #1: Wed Mar 21 =
15:22:14 MDT 2012     chad@underhill:/usr/obj/usr/src/sys/UNDERHILL-XEN  =
amd64

and on those systems run a bunch of jails.  I have Apache 2.2 built and =
running in the jail in question, and recently had need to add mod_fcgid =
to it.  NOTE that the Apache and mod_fcgid were not installed through =
ports or packages.  I download the source and build myself (for various =
reasons). =20

Apache inside the Jail, with mod_fcgid enabled will not start:

[Mon Jul 23 10:59:35 2012] [emerg] (78)Function not implemented: =
mod_fcgid: Can't create shared memory for size 1192488 bytes


I did a search on this and found that I would probably need a system =
kernel parameter changed from 0 -> 1

security.jail.sysvipc_allowed

So I did that.  (And restarted the jail).  However, I still get the same =
error when trying to start apache.

I noticed a similar parameter  security.jail.param.allow.sysvipc  but =
cannot change this at run time and did not find anything useful about =
what this parameter is for using a search engine.

(As an aside, how would I change security.jail.sysvipc_allowed   and =
also security.jail.param.allow.sysvipc at boot time?  I added them both =
to /boot/loader.conf but they did not get changed at boot and I had to =
do the security.jail.sysvipc_allowed one again on the command line -- I =
have some vfs type kernel state variables set there and they stick)

I would appreciate some help with getting things set up so that I can =
run apache with mod_fcgid under my Jails on FBSD 9.

Thanks!
Chad





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