From owner-freebsd-current@FreeBSD.ORG Fri Aug 14 15:01:41 2009 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5F42A10656C0 for ; Fri, 14 Aug 2009 15:01:41 +0000 (UTC) (envelope-from ru@freebsd.org) Received: from mail.vega.ru (mail.vega.ru [90.156.167.5]) by mx1.freebsd.org (Postfix) with ESMTP id 1A3EF8FC68 for ; Fri, 14 Aug 2009 15:01:40 +0000 (UTC) Received: from [10.100.124.99] (port=52824 helo=edoofus.dev.vega.ru) by mail.vega.ru with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69 (FreeBSD)) (envelope-from ) id 1MbyHi-0007V0-6p; Fri, 14 Aug 2009 19:01:38 +0400 Date: Fri, 14 Aug 2009 19:01:32 +0400 From: Ruslan Ermilov To: Ian FREISLICH Message-ID: <20090814150132.GF69960@edoofus.dev.vega.ru> References: <20090814120602.GA64565@edoofus.dev.vega.ru> <20090814080044.A93661@maildrop.int.zabbadoz.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Cc: "Bjoern A. Zeeb" , FreeBSD current mailing list Subject: Re: panic in netisr (I think) + DUMP FAILED (ERROR 6) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Aug 2009 15:01:41 -0000 On Fri, Aug 14, 2009 at 03:47:16PM +0200, Ian FREISLICH wrote: > Ruslan Ermilov wrote: > > On Fri, Aug 14, 2009 at 10:47:05AM +0200, Ian FREISLICH wrote: > > > Do you have any idea why kernel dumps are not working as shown in > > > the OP? > > > > > There was a message, "Attempt to write outside dump device boundaries.", > > that explains that. Search the mailing list archives where I explained > > the underlying bug with current versions of FreeBSD (in short page maps > > get updated while we're writing a dump, due to interrupts still enabled). > > And then, this bug is probably why my dumps have been unusable since > about 12 months now? These (2) servers have a continuous interrupt > rate in excess of 40k/s, network related, so interrupts during > dumping are highly likely. Reading that thread I'm given to believe > that the problem exists only for mini-dumps. I've had crashes > without cores with (and without) mini-dumps enabled, but I've only > recently started capturing console output, so I'll see what happens > on its next crash. They reliably crash at least once a week. > True: only on SMP and only with minidumps enabled. Cheers, -- Ruslan Ermilov ru@FreeBSD.org FreeBSD committer