Date: Thu, 28 Dec 2023 11:28:31 -0500 From: "Dan Langille" <dan@langille.org> To: freebsd-ports <freebsd-ports@freebsd.org> Subject: net-mgmt/net-snmp needs JAIL : off to get Memory usage Message-ID: <95c256b2-ec07-4867-bfa2-32f39ba88504@app.fastmail.com>
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Hello,
I've just solved a long-puzzling issue with net-mgmt/net-snmp which was not reporting Memory Usage on my hosts.
Tests show it is related to the JAIL build-time configuration option.
JAIL=off: Options for running snmpd within a jail(8)
If off, the default, Memory Usage is available via snmpd.
If on, it is not.
One might ask: why have it on if not running in a jail?
Simplicity: I build my own packages. I could have one repo specifically for hosts (i.e. non-jails), but until now, it's never been an issue.
However, I want to point that that JAIL=off does not seem to affect usage within a jail.
It becomes clear what JAIL does when looking at the Makefile:
.if ${PORT_OPTIONS:MJAIL}
NET_SNMP_WITHOUT_MIB_MODULE_LIST+= host
NET_SNMP_WITHOUT_MIB_MODULE_LIST+= ucd-snmp/memory
CONFIGURE_ARGS+= --without-kmem-usage
.endif
Not it's clear. Don't report host-like objects when within a jail.
It is time for some flavors on this port? I know I'd like one for my use: one without the above and with.
I'll see if I can mangle something up which works.
--
Dan Langille
dan@langille.org
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