From owner-freebsd-fs@FreeBSD.ORG Mon Apr 19 14:42:08 2010 Return-Path: Delivered-To: fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 127E2106566C; Mon, 19 Apr 2010 14:42:07 +0000 (UTC) (envelope-from tevans.uk@googlemail.com) Received: from mail-ew0-f224.google.com (mail-ew0-f224.google.com [209.85.219.224]) by mx1.freebsd.org (Postfix) with ESMTP id 6ED8F8FC1B; Mon, 19 Apr 2010 14:42:05 +0000 (UTC) Received: by ewy24 with SMTP id 24so1413040ewy.33 for ; Mon, 19 Apr 2010 07:42:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:received:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=OvTdHNiGqa5q64ElbWtUWOjJPVFzyq4wz+xGbqGlDGU=; b=jiVp3p0CAoiCbyy4qdS8uWHzpjCpsTTzN7AOA2IQfDxSovmk2sRWnQAgqyw1abFrnM Cckuuzicr9Dtxc0WZ9Nz2k/sTBmkIkUV3j3SYvwiRt0zrikevMlNHdgph3NY2oCi29Cw oGUJvld0RxhBfnplamZT2tyQ29V+vBlmWtQJQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=NgbTJBMD+ExRkSEJZCmOCiCEl+FWn4HTXl54PWbVbYkW3WFqaxIhySbBo10gWW1LMo kJSDD3fyGETXBj9CQrxM8XUK7nssPH//Obc66+oCVsxeN5CWF+g5vRj9Tjt9riPVA309 K5GNBDwCxudz/0GqxGsAnupZCDY8/S6h/8Yow= MIME-Version: 1.0 Received: by 10.239.142.17 with HTTP; Mon, 19 Apr 2010 07:10:39 -0700 (PDT) In-Reply-To: References: <4BC9E254.9070300@freebsd.org> Date: Mon, 19 Apr 2010 15:10:39 +0100 Received: by 10.239.165.138 with SMTP id x10mr512493hbd.148.1271686239293; Mon, 19 Apr 2010 07:10:39 -0700 (PDT) Message-ID: From: Tom Evans To: Paul B Mahol Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Cc: Tim Kientzle , current@freebsd.org, fs@freebsd.org Subject: Re: ISO9660 4GB directory structures boundary limit and growisofs 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, 19 Apr 2010 14:42:08 -0000 On Mon, Apr 19, 2010 at 1:48 PM, Paul B Mahol wrote: > On 4/17/10, Paul B Mahol wrote: >> On Sat, Apr 17, 2010 at 4:31 PM, Tim Kientzle wro= te: >>> Paul B Mahol wrote: >>>> >>>> It is apparently not possible to make use of -use-the-force-luke=3D4gm= s >>>> on FreeBSD when appending new session after 4GB. Mounted disk >>>> afterwards =C2=A0show nothing. >>>> >>>> Should we allow it like linux does? >>> >>> Are you claiming there is a problem when FreeBSD reads such >>> images or a problem with creating such images? =C2=A0What >>> programs are you using? >> >> I burn flac files in multiple sessions, each session have separate >> directory, on DVD+R DL MKM/003 >> After I used 4gms switch mounted fs shows nothing. (but there is >5GB of >> data) >> >> According to growisofs source BD (bluray) dont need this switch at all .= .. >> >>> This sounds like a pretty unsurprising 32-bit truncation >>> bug: =C2=A0the filesystem structures in ISO9660 are all sector >>> numbers so 8TB should be the natural limit (4G sectors >>> times 2k bytes/sector). >> >> I did not tested this on FreeBSD amd64 yet. > > Update: Linux shows all sessions and Windows 7 shows only first one. >From the source code of groisofs.c: * - DVD+R Double Layer support; * - -use-the-force-luke=3D4gms to allow ISO9660 directory structures * to cross 4GB boundary, the option is effective only with DVD+R DL * and for data to be accessible under Linux isofs a kernel patch is * required; So I'm guessing it does something non standard, particularly if windows also refuses to see the data. Cheers Tom