From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony Liguori Subject: Re: [Qemu-devel] Re: Problems KVM-84 Date: Wed, 11 Mar 2009 15:19:12 -0500 Message-ID: <49B81CC0.20303@codemonkey.ws> References: <49B79D50.4090300@redhat.com> <49B7C6BF.6030803@codemonkey.ws> <49B7D02E.1010307@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: qemu-devel@nongnu.org, Jay Mann , Uri Lublin , kvm@vger.kernel.org To: Avi Kivity Return-path: Received: from rv-out-0506.google.com ([209.85.198.239]:20820 "EHLO rv-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751106AbZCKUTS (ORCPT ); Wed, 11 Mar 2009 16:19:18 -0400 Received: by rv-out-0506.google.com with SMTP id g9so3218696rvb.5 for ; Wed, 11 Mar 2009 13:19:16 -0700 (PDT) In-Reply-To: <49B7D02E.1010307@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Avi Kivity wrote: > Anthony Liguori wrote: >>> >>> Scanning the file at startup is slow. We need to find a better way. >> >> Any quick ideas? Seems like this is broken by design. > > I agree. > >> Unless we can find a quick fix, I'm going to revert this in the >> stable tree. > > We could cache the value in some unused area. Set it up in qemu-img. > Don't support it on older images. > > But that's not a quick fix; I'd suggest reverting it in both stable > and mainline, and re-applying in mainline when there's a fix. Done. Uri, please submit the series again when you've found a solution to these problems. Regards, Anthony Liguori