From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:41172) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SXxD3-0000Oq-BH for qemu-devel@nongnu.org; Fri, 25 May 2012 12:17:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SXxD1-0001eW-ET for qemu-devel@nongnu.org; Fri, 25 May 2012 12:17:48 -0400 Received: from mx1.redhat.com ([209.132.183.28]:2254) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SXxD1-0001e4-6Q for qemu-devel@nongnu.org; Fri, 25 May 2012 12:17:47 -0400 Message-ID: <4FBFB0A0.5050706@redhat.com> Date: Fri, 25 May 2012 18:17:36 +0200 From: Kevin Wolf MIME-Version: 1.0 References: <1337873211-16124-1-git-send-email-stefanha@linux.vnet.ibm.com> In-Reply-To: <1337873211-16124-1-git-send-email-stefanha@linux.vnet.ibm.com> Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH] qemu-iotests: mark 035 qcow2-only List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Hajnoczi Cc: qemu-devel@nongnu.org Am 24.05.2012 17:26, schrieb Stefan Hajnoczi: > The 035 parallel aio write test relies on knowledge of qcow2 metadata > layout to stress parallel L2 table accesses. This only works for qcow2 > unless we add additional calculations for qed or other formats. > > Mark this test as qcow2-only. > > Note that the test is strictly speaking non-deterministic although the > output produced is reliable with qcow2. This is because the aio_write > command returns before the aio write request has completed. Completions > can occur at any time afterwards and cause a message to be printed. > Therefore the exact output of this test is not deterministic but we seem > to get away with it for qcow2 (maybe due to coroutine and main loop > scheduling). > > Signed-off-by: Stefan Hajnoczi Thanks, applied to the block branch. Kevin