From owner-freebsd-questions@FreeBSD.ORG Wed May 16 12:23:27 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id AEB5816A46E for ; Wed, 16 May 2007 12:23:27 +0000 (UTC) (envelope-from wmoran@potentialtech.com) Received: from mail.potentialtech.com (internet.potentialtech.com [66.167.251.6]) by mx1.freebsd.org (Postfix) with ESMTP id 730BE13C45B for ; Wed, 16 May 2007 12:23:27 +0000 (UTC) (envelope-from wmoran@potentialtech.com) Received: from vanquish.pgh.priv.collaborativefusion.com (pr40.pitbpa0.pub.collaborativefusion.com [206.210.89.202]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.potentialtech.com (Postfix) with ESMTP id BA1C1EBC78; Wed, 16 May 2007 08:23:26 -0400 (EDT) Date: Wed, 16 May 2007 08:23:25 -0400 From: Bill Moran To: "Daniel Eriksson" Message-Id: <20070516082325.5369c376.wmoran@potentialtech.com> In-Reply-To: <4F9C9299A10AE74E89EA580D14AA10A61A173C@royal64.emp.zapto.org> References: <20070507094041.92f2d110.wmoran@potentialtech.com> <4F9C9299A10AE74E89EA580D14AA10A61A173C@royal64.emp.zapto.org> X-Mailer: Sylpheed 2.3.1 (GTK+ 2.10.11; i386-portbld-freebsd6.1) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org Subject: Re: Upper limit on mount points? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 May 2007 12:23:27 -0000 In response to "Daniel Eriksson" : > Bill Moran wrote: > > > We have some systems with a lot of jails. We're using ezjail, which > results > > in a lot of nullfs mounts. In combination with some other nullfs > tricks I'm > > using on this system, I'm a bit concerned that we're going to hit some > sort > > of limit on the number of mountpoint. > > > > Google hasn't been much help, and I thought I'd ask here before I dug > in to > > the sourcecode. I'm wondering if there's an upper limit (either hard > or > > practical) on the number of mountpoints on a system? > > I have a box running 6-STABLE that has 700+ nullfs mounts, and it runs > just fine. Thanks, Daniel. We've only got ~60, so I guess I've got a ways before I need to worry. -- Bill Moran http://www.potentialtech.com