From owner-svn-src-head@freebsd.org Fri Aug 25 18:57:39 2017 Return-Path: Delivered-To: svn-src-head@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 CEEF7DDF189; Fri, 25 Aug 2017 18:57:39 +0000 (UTC) (envelope-from asomers@gmail.com) Received: from mail-wr0-x232.google.com (mail-wr0-x232.google.com [IPv6:2a00:1450:400c:c0c::232]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 5CE676C82E; Fri, 25 Aug 2017 18:57:39 +0000 (UTC) (envelope-from asomers@gmail.com) Received: by mail-wr0-x232.google.com with SMTP id o76so1830984wrb.5; Fri, 25 Aug 2017 11:57:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=wdccCK024D+x2D8N6bED+Y/haj22zJqbxi6/1GQouBs=; b=iGnDHGMsoZ+JESl7DP/47Ehn9I5wJPfaDiZJDMxSUYal67noYcnD51+P0PO4/VTjPS kyQISkVezDSrEegCQ0Bgnuk24KJUYpYu1852FxoLJYkxGqI5MI15lpuAwSEpdNMtNV2F rkYs6YaF21hzRkwupvcbqfIP8M7E4bikgc120mPPyKYJyMXdzMUdS8vFi9IPIFbUSms5 BHtN+XdUlaxD711GXslWCjdIrk3vjE2ivZZnSvC0X5h0P5LAfJ6QLOgps0YhsuCNIhaR Mc3eDHzVOLXlERYlrsG4LJyP4UhS3QqHkpQvm6nZAHPfCMy/6kJvpuqlhC3THTTUoGIk vW4Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=wdccCK024D+x2D8N6bED+Y/haj22zJqbxi6/1GQouBs=; b=ewKAL++7Z1J1pt+dRXUe7Ek5//J2lPRRPr7soOSFftYq4xS3uD/eUb6zSuj9gHr68w TInKpMie3tJegw4KYb7abo2eHpUg+l/ipRy0dhieCW4zGkEy+GA8p6+bhULotG69xsjk 6ixgHu3Be9SM/VRlwkbMPhSterOQ7ug9E2XHbjjMsHSwS9vmm79he3QjpkjyxhoGyETU eW+WT5TQRVKtXeJGWgcmK8tP3KlfuKKvlsVXzjNrpfkHjUkEFK6BV+qEo8EXukA/JP7U JilTvNtvpeoaS/McZrc/VN8lukZmLiwB1383PKE0atPfQMml0ITy6s/cKTOuFHu/LSE0 qUQw== X-Gm-Message-State: AHYfb5jZgegupzXkpwI4XBRlK/P6hnM66guJ5OUDWLuGrRi0C6jBSvG9 NLoH+jVQAH/WgyBw+xJgftPw99ZAww== X-Received: by 10.223.174.225 with SMTP id y88mr7134509wrc.264.1503687457524; Fri, 25 Aug 2017 11:57:37 -0700 (PDT) MIME-Version: 1.0 Sender: asomers@gmail.com Received: by 10.28.56.194 with HTTP; Fri, 25 Aug 2017 11:57:37 -0700 (PDT) In-Reply-To: References: <201708251531.v7PFVtoZ038242@repo.freebsd.org> From: Alan Somers Date: Fri, 25 Aug 2017 12:57:37 -0600 X-Google-Sender-Auth: PXJUpPML6fmbkOf5fNz4DvzEko0 Message-ID: Subject: Re: svn commit: r322893 - head/bin/dd To: "Conrad E. Meyer" Cc: src-committers , "svn-src-all@freebsd.org" , "svn-src-head@freebsd.org" Content-Type: text/plain; charset="UTF-8" X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 25 Aug 2017 18:57:39 -0000 That doesn't work either before or after this change. -Alan On Fri, Aug 25, 2017 at 11:20 AM, Conrad Meyer wrote: > Well, not negative, just large uint64_t numbers that would be negative > as off_t (int64_t). > > E.g., dd if=/dev/kmem bs=1 iseek=0xfffff...foo count=8. I think we > would like that to work. I don't recall whether it does or not before > this change. > > Best, > Conrad > > On Fri, Aug 25, 2017 at 10:08 AM, Alan Somers wrote: >> Nope. Do you mean negative offsets for the iseek argument? I didn't >> know you could do that. >> >> On Fri, Aug 25, 2017 at 10:59 AM, Conrad Meyer wrote: >>> Hi Alan, >>> >>> By any chance did you test this change with /dev/kmem and kernel >>> addresses ("negative" off_t values)? >>> >>> Thanks, >>> Conrad