From owner-freebsd-net@FreeBSD.ORG Sat Jul 18 19:28:56 2009 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C4BDE106564A for ; Sat, 18 Jul 2009 19:28:56 +0000 (UTC) (envelope-from volker@vwsoft.com) Received: from Mail.elbekies.net (mail.elbekies.net [217.6.211.146]) by mx1.freebsd.org (Postfix) with ESMTP id 790798FC08 for ; Sat, 18 Jul 2009 19:28:56 +0000 (UTC) (envelope-from volker@vwsoft.com) Received: from mail.vtec.ipme.de (Q7daa.q.ppp-pool.de [89.53.125.170]) by Mail.elbekies.net (Postfix) with ESMTPA id 8375A67884; Sat, 18 Jul 2009 21:03:51 +0200 (CEST) Received: from [192.168.16.4] (dardanos.sz.vwsoft.com [192.168.16.4]) by mail.vtec.ipme.de (Postfix) with ESMTP id 4B41333CA1; Sat, 18 Jul 2009 21:02:17 +0200 (CEST) Message-ID: <4A621C86.1060002@vwsoft.com> Date: Sat, 18 Jul 2009 21:03:34 +0200 From: volker@vwsoft.com User-Agent: Thunderbird 2.0.0.22 (X11/20090629) MIME-Version: 1.0 To: =?ISO-8859-1?Q?=C1=F5=BF=AD?= References: <7237120a0907092043ld8a3325mcf1458ef4aab3bf8@mail.gmail.com> In-Reply-To: <7237120a0907092043ld8a3325mcf1458ef4aab3bf8@mail.gmail.com> X-Enigmail-Version: 0.95.1 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-VWSoft-MailScanner: Found to be clean X-MailScanner-ID: 8375A67884.9214A X-Elbekies-MailScanner: Found to be clean X-MailScanner-From: volker@vwsoft.com MailScanner-NULL-Check: 1248548634.36416@6W4qQeb92NQJZIG17iQTkg Cc: freebsd-net@freebsd.org Subject: Re: system panic when i use ath without swap,some advice? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Jul 2009 19:28:58 -0000 On 07/10/09 05:43, Áõ¿­ wrote: > Hi all > > My system is atom n270 1G RAM, freebsd 7.2 release .without swap. > When my ath is associated with an AP, and the traffic is high, the > system will panic and reboot. this happened many times. > Can you give me some advice please. > thanks > > Micheal Kevin Micheal, sure, if you can give us the actual panic message, and preferable a backtrace, I'm pretty sure we can. If you can easily produce the panic, you can also grab the coredump w/o swap space, if you have a spare USB thumb drive handy (see savecore). BTW by instructing the kernel to save it's coredump onto a (dedicated) USB thumb drive, I'm fetching core dumps from embedded units which is otherwise impossible. You can than later analyze and debug your kernel crash on a workstation machine. HTH Volker