From owner-freebsd-current@FreeBSD.ORG Mon Sep 10 06:14:39 2007 Return-Path: Delivered-To: freebsd-current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 326D516A419; Mon, 10 Sep 2007 06:14:39 +0000 (UTC) (envelope-from danny@cs.huji.ac.il) Received: from cs1.cs.huji.ac.il (cs1.cs.huji.ac.il [132.65.16.10]) by mx1.freebsd.org (Postfix) with ESMTP id C1A5313C474; Mon, 10 Sep 2007 06:14:38 +0000 (UTC) (envelope-from danny@cs.huji.ac.il) Received: from pampa.cs.huji.ac.il ([132.65.80.32]) by cs1.cs.huji.ac.il with esmtp id 1IUcXc-000NdZ-LH; Mon, 10 Sep 2007 09:14:36 +0300 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.2 To: "Lawrence Farr" In-reply-to: <046801c7f229$a4534510$ecf9cf30$@co.uk> References: <20070904233246.GA2409@epia-2.farid-hajji.net> <043a01c7f202$a7ad0920$f7071b60$@co.uk> <046801c7f229$a4534510$ecf9cf30$@co.uk> Comments: In-reply-to "Lawrence Farr" message dated "Sat, 08 Sep 2007 16:05:03 +0100." Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 10 Sep 2007 09:14:36 +0300 From: Danny Braniss Message-ID: Cc: freebsd-current@FreeBSD.org, 'cpghost' , 'Gavin Atkinson' Subject: Re: dump problems 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: Mon, 10 Sep 2007 06:14:39 -0000 > > > > the only indication I can see, is that one of the dump procs. is > > waiting on > > sbwait, and probably it's some deadlock, which is similar to what I > > keep > > seeing here, i'll try now with SCHED_ULE to see if it make a > > difference. > > > I'm running SCHED_ULE on these already, if your not I guess it's not the > scheduler? > I can get it to 'work' by fiddling with the b flag (blocksize), which still points to some timming/deadlock problem. ie: dump 0abf 64 /some/backup/file /file/to/backup now works, but dump 0abf 64 - | restore rbf 64 - hangs as before. (i don't think the b 64 in restore is needed). danny