From owner-freebsd-stable Wed Jan 23 13: 0:18 2002 Delivered-To: freebsd-stable@freebsd.org Received: from resnet.uoregon.edu (resnet.uoregon.edu [128.223.122.47]) by hub.freebsd.org (Postfix) with ESMTP id C739737B402 for ; Wed, 23 Jan 2002 13:00:15 -0800 (PST) Received: from localhost (dwhite@localhost) by resnet.uoregon.edu (8.11.3/8.10.1) with ESMTP id g0NL0Ya57670; Wed, 23 Jan 2002 13:00:34 -0800 (PST) Date: Wed, 23 Jan 2002 13:00:34 -0800 (PST) From: Doug White To: Sergey Gershtein Cc: freebsd-stable@FreeBSD.ORG Subject: Re[2]: Strange lock-ups during backup over nfs after adding 1024M RAM In-Reply-To: <182699938898.20020123133249@ur.ru> Message-ID: <20020123125856.C56623-100000@resnet.uoregon.edu> X-All-Your-Base: are belong to us MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Wed, 23 Jan 2002, Sergey Gershtein wrote: > On Wednesday, January 23, 2002 you wrote: > DW> On Tue, 22 Jan 2002, Doug White wrote: > > DW> Try rebuilding your kernel with > DW> > DW> maxusers 256 > DW> > DW> You may need to scale up the tables in the system to handle the additional > DW> memory. > > It's already set to 512, is it too high? We did not rebuild the > kernel after adding memory, it worked fine with maxusers 512 and > 1024M RAM. Yes. You've scaled the tables so large that when you double the RAM, the page tables + maxusers 512 tables > KVM. Also, there are problems going from 1GB to 2GB on early 4.4-STABLE ... when did you build last? > maxusers 512 Drop this to 128, definitely. If you're doing a lot of network, monitor your mbuf usage and override that if necessary. Doug White | FreeBSD: The Power to Serve dwhite@resnet.uoregon.edu | www.FreeBSD.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message