From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MVggi-0007G9-Tx for qemu-devel@nongnu.org; Tue, 28 Jul 2009 03:01:29 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MVgge-0007Eh-TY for qemu-devel@nongnu.org; Tue, 28 Jul 2009 03:01:28 -0400 Received: from [199.232.76.173] (port=46150 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MVgge-0007Ee-O2 for qemu-devel@nongnu.org; Tue, 28 Jul 2009 03:01:24 -0400 Received: from mx20.gnu.org ([199.232.41.8]:21174) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1MVgge-0003UF-7h for qemu-devel@nongnu.org; Tue, 28 Jul 2009 03:01:24 -0400 Received: from fmmailgate01.web.de ([217.72.192.221]) by mx20.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1MVggd-0002cU-JA for qemu-devel@nongnu.org; Tue, 28 Jul 2009 03:01:23 -0400 Message-ID: <4A6EA23E.4090502@web.de> Date: Tue, 28 Jul 2009 09:01:18 +0200 From: Jan Kiszka MIME-Version: 1.0 References: <1248468005-13907-1-git-send-email-glommer@redhat.com> <4A6AD034.4090802@web.de> <20090728010807.GR4776@poweredge.glommer> <4A6E9C7A.9080705@redhat.com> <4A6E9FCC.40909@web.de> <4A6EA1CB.2030604@redhat.com> In-Reply-To: <4A6EA1CB.2030604@redhat.com> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigD5364ED6534CBF7D2A47EBD2" Sender: jan.kiszka@web.de Subject: [Qemu-devel] Re: [PATCH] RFC: use logging count for individual regions List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Avi Kivity Cc: Glauber Costa , qemu-devel@nongnu.org, aliguori@us.ibm.com This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigD5364ED6534CBF7D2A47EBD2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Avi Kivity wrote: > On 07/28/2009 09:50 AM, Jan Kiszka wrote: >> >> =20 >>> Unlike the qemu dirty byte-map, the kvm dirty log can only service on= e >>> user. As we have multiple users (vga and migration), we need some wa= y >>> to fix this impedance mismatch. I think refcounts are the easiest. >>> =20 >> >> This case is already handled upstream. If we had more users, we would >> need refcounts. >> =20 >=20 > If we turn off logging on migration failure, then we'd introduce a bug > in vga logging, no? >=20 Nope. --------------enigD5364ED6534CBF7D2A47EBD2 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iEYEARECAAYFAkpuokAACgkQniDOoMHTA+kOAgCfV7A/m1VjTeHkXrfLlzXe5gNo H7UAn3hinaT8xZPvyzPpqXCZ0yay1f+i =Hvrx -----END PGP SIGNATURE----- --------------enigD5364ED6534CBF7D2A47EBD2--