From owner-freebsd-stable@FreeBSD.ORG Mon Mar 15 23:04:07 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EE049106574A for ; Mon, 15 Mar 2010 23:04:07 +0000 (UTC) (envelope-from ohartman@mail.zedat.fu-berlin.de) Received: from outpost1.zedat.fu-berlin.de (outpost1.zedat.fu-berlin.de [130.133.4.66]) by mx1.freebsd.org (Postfix) with ESMTP id A64FA8FC22 for ; Mon, 15 Mar 2010 23:04:07 +0000 (UTC) Received: from inpost2.zedat.fu-berlin.de ([130.133.4.69]) by outpost1.zedat.fu-berlin.de (Exim 4.69) with esmtp (envelope-from ) id <1NrJKP-0006ID-M8>; Tue, 16 Mar 2010 00:04:05 +0100 Received: from e178043153.adsl.alicedsl.de ([85.178.43.153] helo=thor.walstatt.dyndns.org) by inpost2.zedat.fu-berlin.de (Exim 4.69) with esmtpsa (envelope-from ) id <1NrJKP-0006CW-Ja>; Tue, 16 Mar 2010 00:04:05 +0100 Message-ID: <4B9EBCE5.7080303@mail.zedat.fu-berlin.de> Date: Tue, 16 Mar 2010 00:04:05 +0100 From: "O. Hartmann" User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.1.8) Gecko/20100308 Thunderbird/3.0.3 MIME-Version: 1.0 To: Matthew Fleming References: <4B9E2DFD.2000701@zedat.fu-berlin.de> <06D5F9F6F655AD4C92E28B662F7F853E037DDA15@seaxch09.desktop.isilon.com> In-Reply-To: <06D5F9F6F655AD4C92E28B662F7F853E037DDA15@seaxch09.desktop.isilon.com> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: 85.178.43.153 Cc: freebsd-stable@freebsd.org, "O. Hartmann" Subject: Re: Fatal trap 12: page fault while in kernel mode/current process: 12 (swi2: cambio) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Mar 2010 23:04:08 -0000 On 03/15/10 18:30, Matthew Fleming wrote: >> Since the last update and make world on Friday, 12th March I get a > crash >> on one of my FreeBSD SMP boxes (it is always the same core message), >> saying something about >> >> Fatal trap 12: page fault while in kernel mode [...] current process: > 12 >> (swi2: cambio) > > Can you show the stack traceback from the kernel core? > > We had a problem a while ago at Isilon that I can't tell if it's > related. In our case, the camisr() routine was called after panic(9) > started and before the halt of other processors. This did Bad > Things(TM) since the mtx_lock is a no-op after panicstr is set. > > We solved it locally by wrapping camisr() in a local cambio_swi() > routine that only called camisr(NULL) when panicstr == NULL. > > Thanks, > matthew Hello. I will do as soon as possible. The box is in production at the moment and I've less time to put everything into debugging to provide more details. Just in case: does the kernel automatically save the screen with the dump information? If not, I have no other terminal facility to get a dump via the classical way. Regards, Oliver