From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Kiszka Subject: Re: [PATCH 4/4] KVM: Rework of guest debug state writing Date: Thu, 04 Feb 2010 01:33:50 +0100 Message-ID: <4B6A15EE.4050501@web.de> References: <372238c800e0d57815f472502fdf78e53463bbb6.1265232579.git.jan.kiszka@siemens.com> <20100203234929.GA11012@amt.cnet> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigAC2C495F637C65A18E4C597F" Cc: Anthony Liguori , qemu-devel@nongnu.org, Avi Kivity , kvm@vger.kernel.org To: Marcelo Tosatti Return-path: Received: from fmmailgate01.web.de ([217.72.192.221]:44394 "EHLO fmmailgate01.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933009Ab0BDAd5 (ORCPT ); Wed, 3 Feb 2010 19:33:57 -0500 In-Reply-To: <20100203234929.GA11012@amt.cnet> Sender: kvm-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigAC2C495F637C65A18E4C597F Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Marcelo Tosatti wrote: > On Wed, Feb 03, 2010 at 10:29:45PM +0100, Jan Kiszka wrote: >> So far we synchronized any dirty VCPU state back into the kernel befor= e >> updating the guest debug state. This was a tribute to a deficit in x86= >> kernels before 2.6.33. But as this is an arch-dependent issue, it is >> better handle in the x86 part of KVM and remove the writeback point fo= r >> generic code. >=20 > Jan, >=20 > This patch breaks migration. Can you elaborate what you did? I can't reproduce, and I do not see any conceptual issue (given that guest debugging conflicts with migration anyway). Jan --------------enigAC2C495F637C65A18E4C597F 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 iEYEARECAAYFAktqFfMACgkQitSsb3rl5xQGOwCfZ0+nq4q8AZbuaKThyfq6cT/n 6dYAoLm099ISqStt97N3AxIf4WdUFPxd =D1eA -----END PGP SIGNATURE----- --------------enigAC2C495F637C65A18E4C597F--