From owner-freebsd-fs@FreeBSD.ORG Mon Feb 23 01:16:56 2009 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id EFC3C1065689 for ; Mon, 23 Feb 2009 01:16:56 +0000 (UTC) (envelope-from toasty@dragondata.com) Received: from tokyo01.jp.mail.your.org (tokyo01.jp.mail.your.org [204.9.54.5]) by mx1.freebsd.org (Postfix) with ESMTP id AECF88FC17 for ; Mon, 23 Feb 2009 01:16:56 +0000 (UTC) (envelope-from toasty@dragondata.com) Received: from tokyo01.jp.mail.your.org (localhost.your.org [127.0.0.1]) by tokyo01.jp.mail.your.org (Postfix) with ESMTP id 9A5282AD5695; Mon, 23 Feb 2009 01:16:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=dragondata.com; h=cc :message-id:from:to:in-reply-to:content-type :content-transfer-encoding:mime-version:subject:date:references; s=selector1; bh=yYfa161oVGqu4A+K+D9jbMqbjRs=; b=w/u+gDeSUaONOG9 qWSrp5RxYUGRuZlb8F20ANuqyx/dEmf8ilGmWoOx7B7k5ZI+ojFePB/DM3Ce041D HUpUHITOub4HH9tC0YLJ7o9/N93ZFcvcGbo1O8/KTcO7UueegpJ49F8upFtHowvV CnXJe4C+k+dL0XqyI4RaYkYDZBik= DomainKey-Signature: a=rsa-sha1; c=nofws; d=dragondata.com; h=cc:message-id :from:to:in-reply-to:content-type:content-transfer-encoding :mime-version:subject:date:references; q=dns; s=selector1; b=TpS xgyd4DCeifJl2+QLjo/wpNFwpYcIQ8bzix0PdJIPDrO1IUD0duRJd/JsfdsMHnXt PLFcjM6ANdePdkFYTFND8fyNzJbzKC05EbU65gXz4VbAFt2dCdfvT7z9yUQqSSoB 1ZlAfUMsacTrAl8JJIlBkebyRYyVLIy+THoI8P10= Received: from mail.your.org (server3-a.your.org [64.202.112.67]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by tokyo01.jp.mail.your.org (Postfix) with ESMTPS id 5EBF82AD568D; Mon, 23 Feb 2009 01:16:54 +0000 (UTC) Received: from pool011.dhcp.your.org (pool011.dhcp.your.org [69.31.99.11]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by mail.your.org (Postfix) with ESMTPSA id 11C0CA0A40B; Mon, 23 Feb 2009 01:12:28 +0000 (UTC) Message-Id: From: Kevin Day To: Carl In-Reply-To: <49A1E5CE.5000501@telus.net> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v930.3) Date: Sun, 22 Feb 2009 19:16:52 -0600 References: <49A10626.8060705@telus.net> <20090222110052.GH41617@deviant.kiev.zoral.com.ua> <49A1E5CE.5000501@telus.net> X-Mailer: Apple Mail (2.930.3) Cc: freebsd-fs@freebsd.org Subject: Re: UFS2 and/or sparse file bug causing copy process to land in 'D'' state? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Feb 2009 01:16:57 -0000 On Feb 22, 2009, at 5:54 PM, Carl wrote: > > Is there some other way to forcibly reboot a remote system from the > command line when a normal shutdown command is going to totally hang > the system in this way? Or perhaps some kind of watchdog that has a > good chance of surviving long enough to unjam a situation like this? reboot(8)'s man page: -n The file system cache is not flushed. This option should proba- bly not be used. -q The system is halted or restarted quickly and ungracefully, and only the flushing of the file system cache is performed (if the -n option is not specified). This option should probably not be used. One or both of those would probably do it. -- Kevin