From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50967) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d2lOp-0007SS-0E for qemu-devel@nongnu.org; Mon, 24 Apr 2017 17:20:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d2lOl-000204-Mg for qemu-devel@nongnu.org; Mon, 24 Apr 2017 17:19:58 -0400 Received: from mx1.redhat.com ([209.132.183.28]:51952) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d2lOl-0001yu-GI for qemu-devel@nongnu.org; Mon, 24 Apr 2017 17:19:55 -0400 References: <4ea264eb-128c-569a-264c-8ffa3956dca2@redhat.com> From: John Snow Message-ID: Date: Mon, 24 Apr 2017 17:19:48 -0400 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] DMG chunk size independence List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Ashijeet Acharya Cc: Stefan Hajnoczi , Fam Zheng , Kevin Wolf , Max Reitz , QEMU Developers , Peter Wu On 04/23/2017 05:03 AM, Ashijeet Acharya wrote: > Hi, > > Great news! > I have almost completed this task and the results are looking > promising. I have not yet attended to the DMG files having bz2 > compressed chunks but that should be easy and pretty similar to my > approach for zlib compressed files. So, no worries there. > > For testing I am first converting the images to raw format and then > comparing the resulting image with the one converted using v2.9.0 DMG > driver and after battling for 2 days with my code, it finally prints > "Images are identical." According to John, that should be pretty > conclusive and I completely agree. > Yes, comparing a sample.dmg against a raw file generated from the 2.9.0 qemu-img tool should be reasonably good evidence that you have not altered the behavior of the tool. > Now, the real thing I wanted to ask was, if someone is aware of a DMG > file which has a chunk size above 64 MiB so that I can test those too. > If yes, please share the download link with me. > Currently I am testing the ones posted by Peter Wu while submitting > his DMG work in 2014. > Here -> https://lists.nongnu.org/archive/html/qemu-devel/2014-12/msg03606.html > Are any of those over 64MB? I assume you're implying that they aren't. Maybe Peter knows?... > Expect v1 soon... > > Ashijeet >