From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:51459) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RGAIv-0002Av-UU for qemu-devel@nongnu.org; Tue, 18 Oct 2011 10:06:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RGAIu-0003H9-7z for qemu-devel@nongnu.org; Tue, 18 Oct 2011 10:06:05 -0400 Received: from thoth.sbs.de ([192.35.17.2]:16838) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RGAIt-0003Gf-MC for qemu-devel@nongnu.org; Tue, 18 Oct 2011 10:06:04 -0400 Message-ID: <4E9D87B0.5070009@siemens.com> Date: Tue, 18 Oct 2011 16:05:36 +0200 From: Jan Kiszka MIME-Version: 1.0 References: <4E859A72.9040007@siemens.com> <4E9D8698.3060608@redhat.com> In-Reply-To: <4E9D8698.3060608@redhat.com> Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 1/2] Move graphic-related coalesced MMIO flushes to affected device models List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Avi Kivity Cc: Anthony Liguori , qemu-devel , David Gibson On 2011-10-18 16:00, Avi Kivity wrote: > On 09/30/2011 01:31 PM, Jan Kiszka wrote: >> This is conceptually cleaner and will allow us to drop the nographic >> timer. Moreover, it will be mandatory to fully exploit future per-device >> coalesced MMIO rings. >> > > Appears to break winxp installation - the guest enters an infinite > bitblt loop. Trying to find out why. Hmm, maybe there are side effects in certain modes that actually disallow coalescing. Jan -- Siemens AG, Corporate Technology, CT T DE IT 1 Corporate Competence Center Embedded Linux