From owner-freebsd-questions Wed Jan 23 18:22:40 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mail.tecdigital.net (tecdigital.tol.itesm.mx [132.254.97.16]) by hub.freebsd.org (Postfix) with ESMTP id 2385337B400 for ; Wed, 23 Jan 2002 18:22:38 -0800 (PST) Received: from Deathstar (unknown [148.243.246.208]) by mail.tecdigital.net (Postfix) with ESMTP id E401E1D20; Wed, 23 Jan 2002 20:22:22 -0600 (CST) Message-ID: <001201c1a47d$faf08ae0$0a00a8c0@Deathstar> From: "Mario Doria" To: Cc: Subject: Re[2]: Strange lock-ups during backup over nfs after adding 1024M RAM Date: Wed, 23 Jan 2002 20:22:17 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > 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. >Drop this to 128, definitely. If you're doing a lot of network, monitor >your mbuf usage and override that if necessary. I had the same problem, but I removed the extra RAM from the machine. What's better, to hardcode maxusers 128 in the kernel or let it be maxusers 0 and let the system auto-size the parameter? Also, is this autosized on every boot or whenever a kernel is built? Mario Doria madd@tecdigital.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message