From owner-freebsd-questions@FreeBSD.ORG Tue Oct 9 16:47:37 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2D05716A418 for ; Tue, 9 Oct 2007 16:47:37 +0000 (UTC) (envelope-from elvar@ooz.net) Received: from mail.elvar.org (mail.elvar.org [74.93.93.225]) by mx1.freebsd.org (Postfix) with ESMTP id CBA3913C45A for ; Tue, 9 Oct 2007 16:47:36 +0000 (UTC) (envelope-from elvar@ooz.net) Received: from [192.168.0.4] ([192.168.0.4]) (authenticated user elvar@elvar.org) by mail.elvar.org for freebsd-questions@freebsd.org; Tue, 9 Oct 2007 11:45:37 -0500 Message-ID: <470BB0AF.4050004@ooz.net> Date: Tue, 09 Oct 2007 11:47:43 -0500 From: Elvar User-Agent: Thunderbird 2.0.0.6 (Windows/20070728) MIME-Version: 1.0 To: freebsd-questions@freebsd.org References: <470BAF29.3040505@ooz.net> In-Reply-To: <470BAF29.3040505@ooz.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: freezing, hard locking, and debug.mpsafenet=0 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: Tue, 09 Oct 2007 16:47:37 -0000 Sorry for sending this again. When I originally sent this it complained about my reverse dns address and kicked it back to me so after I got my reverse dns changed I sent it again but the original had gone through. Regards, Elvar Elvar wrote: > Hi there, > > I'm sharing my experiences with this in the hopes that it saves > someone else many many hours of troubleshooting and headaches. A > client of mine has a Dell Poweredge tower server with FreeBSD 6-stable > on it which was acting as their firewall. At some point in time about > 6 months ago the box started locking up every day or couple of days. I > imagine this was probably after a buildworld / installworld but I > can't remember. It would hard lock with nothing logged or any sign of > anything, and no response from the keyboard. In my experiences this > usually resulted in bad memory but after swapping out the memory for > new memory the issue still persisted. As time went on I eventually > pulled the hard drives out of the server and put them into another > server with completely different hardware (minus the transfered hard > drives). After bringing the install up on the other server I still had > the hard locks. I googled like mad and tried all sorts of things to > narrow down the problem but kept coming up with nothing. Now, I admit > I'm not an elite user so I'm sure lots of you could probably have > figured it out quicker. Eventually I put new hard drives into the > original firewall (the Dell Poweredge) and did a clean install of > FreeBSD 6.2-RELEASE. Unfortunately after bringing the box online as > the firewall again it continued locking up. I then updated to -STABLE > and still experienced the issue. Finally, after even more countless > hours of googling I found this thread > http://www.freebsdforums.com/forums/showthread.php?t=38765&page=1&pp=1 > > which seemed to describe the same freezing I was having. One person > mentioned setting debug.mpsafenet=0 in /boot/loader.conf and not > having a problem since doing so. Well, I ended up doing the same thing > and it's been about 25 days with not one freeze / lockup. > > It's my understanding that the ability to even disable this has been > taken out of 7.x, I only can hope that it's not an issue in 7.x like > it is on some systems in 6.x. So anyway, I hope this helps someone out. > > > Kind regards, > Elvar > > _______________________________________________ > 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"