From owner-freebsd-questions@FreeBSD.ORG Wed Jun 6 09:41:29 2007 Return-Path: X-Original-To: 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 A9D8516A468 for ; Wed, 6 Jun 2007 09:41:29 +0000 (UTC) (envelope-from management@wlink.com.np) Received: from smtp5.wlink.com.np (smtp5.wlink.com.np [202.79.32.52]) by mx1.freebsd.org (Postfix) with SMTP id B802C13C455 for ; Wed, 6 Jun 2007 09:41:24 +0000 (UTC) (envelope-from management@wlink.com.np) Received: (qmail 46125 invoked from network); 6 Jun 2007 09:14:40 -0000 Received: from unknown (HELO smtp1.wlink.com.np) (202.79.32.76) by 0 with SMTP; 6 Jun 2007 09:14:40 -0000 Received: (qmail 53542 invoked by uid 98); 6 Jun 2007 09:14:40 -0000 Received: from 202.79.36.216 by smtp1.wlink.com.np (envelope-from , uid 1009) with qmail-scanner-1.25 (clamdscan: 0.88.4/2205. Clear:RC:1(202.79.36.216):. Processed in 0.027588 secs); 06 Jun 2007 09:14:40 -0000 X-Qmail-Scanner-Mail-From: management@wlink.com.np via smtp1.wlink.com.np X-Qmail-Scanner: 1.25 (Clear:RC:1(202.79.36.216):. Processed in 0.027588 secs) Received: from [202.79.36.216] (HELO mail.teklimbu.org) by smtp1.wlink.com.np (qmail-smtpd) with SMTP; 06 Jun 2007 09:14:38 -0000 (Wed, 06 Jun 2007 14:59:38 +0545) Received: (qmail 57192 invoked by uid 1009); 6 Jun 2007 09:14:33 -0000 Received: from unknown (HELO teklimbu.wlink.com.np) (202.79.36.216) by mail.teklimbu.org with SMTP; 6 Jun 2007 09:14:33 -0000 Date: Wed, 6 Jun 2007 14:59:31 +0545 From: WorldLink Management <> To: "N. Harrington" Message-Id: <20070606145931.c0e4d237.> In-Reply-To: <854718.51541.qm@web34509.mail.mud.yahoo.com> References: <854718.51541.qm@web34509.mail.mud.yahoo.com> Organization: Worldlink Communications Pvt. Ltd. X-Mailer: Sylpheed version 2.2.0 (GTK+ 2.8.12; i386-portbld-freebsd6.1) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Spam-Check-By: smtp1.wlink.com.np Spam: No ; 5.2 / 7.0 X-Spam-Status-WL: No, hits=5.2 required=7.0 X-Mailman-Approved-At: Wed, 06 Jun 2007 11:32:32 +0000 Cc: questions@freebsd.org Subject: Re: How to solve mysterious system lockups? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: management@wlink.com.np List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Jun 2007 09:41:29 -0000 On Mon, 4 Jun 2007 19:46:30 -0700 (PDT) "N. Harrington" wrote: > > Hello > I have several systems that are used as squid > caching servers. I have some systems that use SCSI > disks and some that use SATA disks. They are > identical in everyway except for the sata vs SCSI > drives. > > At random times, the sata based systems seem to be > freezing. You can ping them and they respond, but you > cannot log in. Nor are any logs processed during that > time. > > I figure it mist be something to do with the disks, > but I am not sure how to solve it. There seems to be > little rhyme or reason. It does not happen necessarily > during busy times. It can happen in the middle of the > night. > > Any pointers in how to track down the cause would be > much appreciated. > > Tyan S2881 Motherboard - 4gigs mem > Using 4 SATA (or scsi) drives > FreeBSD amd64 6.2-STABLE. Hi Nicole, I was also having system lockup problems with my FreeBSD-6.x servers running Squid with SATA disks. I could ping it but could not login using SSH. However, in my case, it was due to high mbufs usage. What's your output of the following commands? netstat -mb sysctl kern.ipc.nmbclusters Thanking you... > > Thanks! > > Nicole > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" >