From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56443) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YQyQC-0004sf-31 for qemu-devel@nongnu.org; Thu, 26 Feb 2015 08:24:09 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YQyQ8-0005yW-Tj for qemu-devel@nongnu.org; Thu, 26 Feb 2015 08:24:08 -0500 Received: from mx1.redhat.com ([209.132.183.28]:46883) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YQyQ8-0005yQ-MA for qemu-devel@nongnu.org; Thu, 26 Feb 2015 08:24:04 -0500 Message-ID: <54EF1E6C.7070704@redhat.com> Date: Thu, 26 Feb 2015 14:23:56 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <1424799498-1916-1-git-send-email-jsnow@redhat.com> In-Reply-To: <1424799498-1916-1-git-send-email-jsnow@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 0/5] ahci: enable migration List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: John Snow , qemu-devel@nongnu.org Cc: kwolf@redhat.com, marc.mari.barcelo@gmail.com, armbru@redhat.com, stefanha@redhat.com, mst@redhat.com On 24/02/2015 18:38, John Snow wrote: > The day we all feared is here, and I am proposing we allow the > migration of the AHCI device. The series that precedes this > which fixes AHCI migration has improved the stability of the > device and as this test series proves, is stable. > > I am justifying this checkin based on a series of ping-pong > migration tests I ran under heavy load (using google's stressapptest) > and saw over 300 successful migrations without a single failure. > > This series does a few things: > (1) Add migration facilities to libqos > (2) Enable AHCI and ICH9 migration > (3) Add a series of migration tests to ahci-test > > This patch has several dependencies: > > (1) stefanha/block > (2) [PATCH v4 00/17] ide: rerror/werror migration fixes for IDE/ISA and AHCI > (3) [PATCH 0/8] ahci: add more IO tests > (4) [PATCH 0/6] ahci: rerror/werror=stop resume tests > > 1, 3 and 4 are ahci-test framework dependencies, but 2 actually allows the > AHCI migration to become stable. Does rerror/werror=stop work even for queued DMA reads/writes (I didn't try doing that, but I never even checked whether it just worked)? Paolo