From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:36006) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RGAL8-0003dg-0s for qemu-devel@nongnu.org; Tue, 18 Oct 2011 10:08:23 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RGAL2-0003kQ-Hw for qemu-devel@nongnu.org; Tue, 18 Oct 2011 10:08:21 -0400 Received: from mx1.redhat.com ([209.132.183.28]:12188) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RGAL2-0003kG-8w for qemu-devel@nongnu.org; Tue, 18 Oct 2011 10:08:16 -0400 Message-ID: <4E9D884B.30309@redhat.com> Date: Tue, 18 Oct 2011 16:08:11 +0200 From: Avi Kivity MIME-Version: 1.0 References: <4E859A72.9040007@siemens.com> <4E9D8698.3060608@redhat.com> <4E9D87B0.5070009@siemens.com> In-Reply-To: <4E9D87B0.5070009@siemens.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: Jan Kiszka Cc: Anthony Liguori , qemu-devel , David Gibson On 10/18/2011 04:05 PM, Jan Kiszka wrote: > 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. > That's true for sure, but flushing the buffer should never be wrong. -- error compiling committee.c: too many arguments to function