From owner-freebsd-questions@freebsd.org Mon Jul 10 19:18:26 2017 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 129EFDAEF43 for ; Mon, 10 Jul 2017 19:18:26 +0000 (UTC) (envelope-from mj001@rogers.com) Received: from nm30-vm1.bullet.mail.gq1.yahoo.com (nm30-vm1.bullet.mail.gq1.yahoo.com [98.136.216.192]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id DB65074930 for ; Mon, 10 Jul 2017 19:18:25 +0000 (UTC) (envelope-from mj001@rogers.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rogers.com; s=s2048; t=1499714192; bh=0+8+Cpbwn5NtIYGMjZDH8BT4Ve1AEE+/cRFn6sFH31I=; h=Subject:References:To:From:Date:In-Reply-To:From:Subject; b=FvHBEPKkV3qCyt3ISbh0MSae8ix1kOYtFfWcNPZml6JXVnlrtsx3Vipq1I1NyNAtoBYNig9m3Osin+k4w3F+hlvfs/ogHXFyVFQnsy+R/QqNcHkHvTCsE5+lDZZBu2LqazbdSY38fRdOosMBoA4IPF8Q5kJacKT5VFYhiDrCYvvtlXyLowtaGL4sKZhd5rmq5+Ky++tQCYcGTioceLtIF9YBW4lI3LZTKWULNh75hLqqBoAJbsDr8lUulqby1eSRLjja85dinlE41MykvqLwCmMgJDwcgFBqsR2YGjuX2Eb/VGRlsyHJJ5VCThCdEouNELPhk6W7rLFLo6lABgspbg== Received: from [216.39.60.183] by nm30.bullet.mail.gq1.yahoo.com with NNFMP; 10 Jul 2017 19:16:32 -0000 Received: from [208.71.42.207] by tm19.bullet.mail.gq1.yahoo.com with NNFMP; 10 Jul 2017 19:16:32 -0000 Received: from [127.0.0.1] by smtp218.mail.gq1.yahoo.com with NNFMP; 10 Jul 2017 19:16:32 -0000 X-Yahoo-Newman-Id: 639571.26100.bm@smtp218.mail.gq1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: qnJ9xqsVM1nWYpfUS4a9kBUNmLhApbWeUB84X9dEAmJrH6C keXtyZCp4zrZkcwQttjWPArH.ZqPMo9iKKOHoJjMXNwtHtUKyD4vbB9Z8s1n WQYXzcu.e7MtZ0GZsmzs9YjVD5etEeXhab3f94wl116GZl73gYphjNsZq3Op FmKKzPaPY3.PMtqosvYdRNjpzAWoItQuc1JDcjyz8NF30zm2.Llxzax24Rj. oeaoEPL2YlXUoWz.hAYDIQVkn748L8G1m9Ww5U6nEwVtsU263tYe2h6jzrkB fYqFPaoNlfuHPY5VMYAVBJ9Gur1tP7amj11uNTZlpnG.tDl5OUrP0WWngAms qhMlCWodAggy7AgbwPVC86qwPwZd29PRuIyPzb3BKMYiVlyDeP1J5tUtZ.vk 12JFB7iGhGjKQDKlDPqWaBB_EE41icv_lsqp3ZqqlEqLmBiIYiM.WYP5drZo A65txSaJqllAgwI2bhhT3xxPMrtuvMl9Grz1D933XZxixOOeXR0xMVwBDuMb vQExPjhqyClZ24.7YPIsAlgaN10xC.tJW5Izk1VsFIte_nHeG5q2xP3dGJ.0 - X-Yahoo-SMTP: TLQliKmswBBvVNxNe7d23d.rcRexF9Jldbuuisg- Subject: Fwd: Re: Unusual Question References: <156b5695-1cbf-c5fa-be49-ff52da58ba0f@rogers.com> To: "freebsd-questions@FreeBSD. ORG" From: Mike Jeays X-Forwarded-Message-Id: <156b5695-1cbf-c5fa-be49-ff52da58ba0f@rogers.com> Message-ID: Date: Mon, 10 Jul 2017 15:16:31 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 MIME-Version: 1.0 In-Reply-To: <156b5695-1cbf-c5fa-be49-ff52da58ba0f@rogers.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Jul 2017 19:18:26 -0000 On 17-07-10 01:38 PM, Polytropon wrote: > On Mon, 10 Jul 2017 17:36:19 +0200, Matthias Apitz wrote: >> The OP should just compile an own version of dd(1) which punches lets say >> every thousand blocks the current block number to see how far (or better >> how less) it will walk through before the kernel halts/crashes. > To extend this idea: > > I'd add a few continuous diagnostic messages (comparable to > the ^T status display), so when the SSH connection finally > drops, it's possible to see how far the dd process went. :-) > > > dd can be made to report its status by sending the kill command USR1. See man dd. You could send one every minute via cron.