From owner-freebsd-questions@FreeBSD.ORG Mon Mar 17 12:32:37 2008 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 B55121065670 for ; Mon, 17 Mar 2008 12:32:37 +0000 (UTC) (envelope-from pieter@degoeje.nl) Received: from smtp.utwente.nl (unknown [IPv6:2001:610:1908:1000:204:23ff:feb5:7e66]) by mx1.freebsd.org (Postfix) with ESMTP id 2F2428FC17 for ; Mon, 17 Mar 2008 12:32:37 +0000 (UTC) (envelope-from pieter@degoeje.nl) Received: from lux.student.utwente.nl (lux.student.utwente.nl [130.89.170.81]) by smtp.utwente.nl (8.12.10/SuSE Linux 0.7) with ESMTP id m2HCVf6m009494; Mon, 17 Mar 2008 13:31:41 +0100 From: Pieter de Goeje To: freebsd-questions@freebsd.org Date: Mon, 17 Mar 2008 13:31:40 +0100 User-Agent: KMail/1.9.7 References: <200803161947.29608.firas@itsuki.fkraiem.org> <200803170108.44645.firas@itsuki.fkraiem.org> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200803171331.40894.pieter@degoeje.nl> X-UTwente-MailScanner-Information: Scanned by MailScanner. Contact servicedesk@icts.utwente.nl for more information. X-UTwente-MailScanner: Found to be clean X-UTwente-MailScanner-From: pieter@degoeje.nl X-Spam-Status: No Cc: Firas Kraiem , "illoai@gmail.com" Subject: Re: 7.0 crashes 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: Mon, 17 Mar 2008 12:32:37 -0000 On Monday 17 March 2008, illoai@gmail.com wrote: > On 16/03/2008, Firas Kraiem wrote: > > On Sunday 16 March 2008 20:43:03 illoai@gmail.com wrote: > > > On 16/03/2008, Firas Kraiem wrote: > > > > Greetings > > > > > > > > I have a 7.0 system (upgraded from 6.2 to 6.3 then to 7.0 using > > > > freebsd-update) and I've experienced a few system crashes (the > > > > system just hard-reboots on it's own) that seem to happen when it > > > > is under heavy network load (downloading at several > > > > megabytes/second). > > > > > > > > Nothing gets written in /var/log/messages when the crashes happen, > > > > and I'm a bit clueless about how to investigate the issue further, > > > > so ideas would be much appreciated. > > > > > > Lo, back in the days of fbsd4.1.1 (or thereabouts) a > > > similar problem had I: random crashes under network > > > load with no core files, no dumps, no errors. > > > > > > Try replacing your NIC. > > > > Thanks for your answer. > > > > The NIC in question is a Realtek 8139 and indeed, Google told me that a > > few people have been experiencing similar issues with it. However, that > > was with old (4.x/5.x) FreeBSD releases, so I'm wondering: is this > > particular NIC model still causing problems or is it the NIC breaking > > in some way? The reason I ask is that the machine is a dedicated server > > over which I have no hardware control, so asking the provider to > > replace the NIC with another model could be a bit bothersome. > > I couldn't possibly say in your case, but in mine it was > a 3com xl nic that had simply gone crackers. > > Any time I get weird, dumpless reboots I suspect hard- > ware. Or Thor. One time I had this kind of trouble and although memtest didn't find any problems with the memory, replacing it still solved the problem. Hardware problems are really difficult to diagnose. -- Pieter de Goeje