On 04/02/18 17:39, Rodney W. Grimes wrote:
Author: kevans
Date: Mon Apr  2 15:28:48 2018
New Revision: 331880
URL: https://svnweb.freebsd.org/changeset/base/331880

   MFC r328331: Support configuring arbitrary limits(1) for any rc.conf daemon
Usage is ${name}_limits, and the argument is any flags accepted by
   limits(1), such as `-n 100' (e.g. only allow 100 open files).

Directory Properties:
   stable/11/   (props changed)

Modified: stable/11/etc/rc.subr
--- stable/11/etc/rc.subr       Mon Apr  2 15:07:41 2018        (r331879)
+++ stable/11/etc/rc.subr       Mon Apr  2 15:28:48 2018        (r331880)
@@ -773,6 +773,8 @@ check_startmsgs()
  #     ${name}_login_class n   Login class to use, else "daemon".
+#      ${name}_limits  n       limits(1) to apply to ${command}.

Caution, limits(1) is in /usr/bin, this code can fail if used before
/usr is mounted.  (Ie, our rc.initdiskless) is probably broken by
this change if a call is made to limits.

Sorry for jumping on this so late. This is also an issue in CURRENT, and has been since at least 2016.

See https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=206291

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