From owner-freebsd-stable@FreeBSD.ORG Thu Oct 2 22:50:10 2008 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 5B8B71065696 for ; Thu, 2 Oct 2008 22:50:10 +0000 (UTC) (envelope-from cpghost@cordula.ws) Received: from fw.farid-hajji.net (fw.farid-hajji.net [213.146.115.42]) by mx1.freebsd.org (Postfix) with ESMTP id E35FE8FC1D for ; Thu, 2 Oct 2008 22:50:09 +0000 (UTC) (envelope-from cpghost@cordula.ws) Received: from phenom.cordula.ws (phenom [192.168.254.60]) by fw.farid-hajji.net (Postfix) with ESMTP id C900235D04; Fri, 3 Oct 2008 00:50:07 +0200 (CEST) Date: Fri, 3 Oct 2008 00:50:36 +0200 From: cpghost To: Oliver Lehmann Message-ID: <20081002225036.GC2539@phenom.cordula.ws> References: <20080929221408.54e6a03a.lehmann@ans-netz.de> <20081001172943.99e9d494.lehmann@ans-netz.de> <20081002185106.a1183896.lehmann@ans-netz.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20081002185106.a1183896.lehmann@ans-netz.de> User-Agent: Mutt/1.5.18 (2008-05-17) Cc: freebsd-stable@freebsd.org Subject: Re: system hangup - I'm lost 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: Thu, 02 Oct 2008 22:50:10 -0000 On Thu, Oct 02, 2008 at 06:51:06PM +0200, Oliver Lehmann wrote: > > today I'd a crash again - I was not able to get a crash dump (thought a > > "panic" at the end of the kdb would do it but didn't - should have called > > dumpon before ;)) - so here now the information I was able to retrieve: > > > > Ok, what I've got so far is wrinting stuff out to the console when the > > system hangs up: > > > > swap_pager: indefinite wait buffer: bufobj: 0, blkno: 2, size: 4096 > > swap_pager: indefinite wait buffer: bufobj: 0, blkno: 2, size: 4096 > > swap_pager: indefinite wait buffer: bufobj: 0, blkno: 2, size: 4096 > > swap_pager: indefinite wait buffer: bufobj: 0, blkno: 2, size: 4096 > > ... > > > > and now the debugger stuff: > > > > [snipped] > > > > So.. no idea? anyone? If it's PATA, check the cabling, then check it again, and just to make sure, replace the cable even if the system used to work flawlessly in the past. I've had this on a few servers, but replacing the cables always fixed the problem for me. Oh, btw, you can reproduce this exact behavior on diskless workstations with an NFS-mounted swap. IIRC, it even happened on VERY slow hardware with GBDE or GELI-encrypted swap partitions; but I'm not 100% sure it was due to slowness (it could have been a bad cabling issue as well). > -- > Oliver Lehmann > http://www.pofo.de/ > http://wishlist.ans-netz.de/ -cpghost. -- Cordula's Web. http://www.cordula.ws/