From owner-freebsd-questions@FreeBSD.ORG Wed Jan 10 21:36:01 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 B16A316A403 for ; Wed, 10 Jan 2007 21:36:01 +0000 (UTC) (envelope-from lists@qwirky.net) Received: from public.aci.on.ca (aci.on.ca [205.207.148.251]) by mx1.freebsd.org (Postfix) with ESMTP id 5FFAE13C428 for ; Wed, 10 Jan 2007 21:36:01 +0000 (UTC) (envelope-from lists@qwirky.net) Received: from (invalid client hostname: host address literal does not match remote client address)[127.0.0.1] (xtreme-156-171.dyn.aci.on.ca[69.17.156.171] port=1938) by public.aci.on.ca([205.207.148.252] port=25) via TCP with esmtp (2851 bytes) (sender: ) id for ; Wed, 10 Jan 2007 16:35:55 -0500 (EST) (Smail-3.2.0.122-Pre 2005-Nov-17 #1 built 2006-Feb-21) Message-ID: <45A55C39.50405@qwirky.net> Date: Wed, 10 Jan 2007 16:35:53 -0500 From: Jeff Royle User-Agent: Thunderbird 1.5.0.9 (Windows/20061207) MIME-Version: 1.0 To: freebsd-questions@freebsd.org References: <45A46DE6.6000806@hicom.net> <45A55858.7000909@netfence.it> In-Reply-To: <45A55858.7000909@netfence.it> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Antivirus: avast! (VPS 0702-0, 09/01/2007), Outbound message X-Antivirus-Status: Clean Cc: Juergen Heberling Subject: Re: 6.1 Freezes - Suspect SCSI Issue X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: lists@qwirky.net List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Jan 2007 21:36:01 -0000 Andrea Venturoli wrote: > Juergen Heberling wrote: >> Hi all >> >> Please suggest some way of diagnosing this problem: >> >> System freezes after being up in production and apparently stable for >> several weeks, no dump, no error message, nothing on the console - so >> I suspect hardware. > > ... >> Here is my dmesg, long lines were wrapped: >> ... >> FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs >> cpu0 (BSP): APIC ID: 0 >> cpu1 (AP): APIC ID: 1 >> cpu2 (AP): APIC ID: 6 >> cpu3 (AP): APIC ID: 7 >> ... >> ahd0: port >> 0x2400-0x24ff,0x2000-0x20ff >> mem 0xdd200000-0xdd201fff irq 32 at device 2.0 on pci3 >> ahd0: [GIANT-LOCKED] >> aic7902: Ultra320 Wide Channel A, SCSI Id=7, PCI-X 67-100Mhz, 512 SCBs >> ahd1: port >> 0x2c00-0x2cff,0x2800-0x28ff >> mem 0xdd202000-0xdd203fff irq 33 at device 2.1 on pci3 >> ahd1: [GIANT-LOCKED] >> aic7902: Ultra320 Wide Channel B, SCSI Id=7, PCI-X 67-100Mhz, 512 SCBs > > I've had freezes as you describe on two different servers with ahd and > SMP. The solution was to turn SMP off, unfortunately :( > > bye > av. > _______________________________________________ Are these Xeon's? If so you might want to try disabling Hyper-threading in the bios. I have noticed some strange behavior on 6.2-RC1 with a IBM x336 server here. It never crashed but the throughput "felt" off, so I disabled Hyper-threading and things seemed to perform the way I expected it to should. I would have more details when I actually have time to work on the server itself, however in the meantime give it a shot. If you have 2 CPU's you shouldn't see the CPU2/CPU3 listed just the 2 aftewards. FYI - I have used that particular controller successfully on several servers recently so I don't think that should be a overall issue for you. Cheers, Jeff