From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:60991) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QbEBF-0005Yd-8p for qemu-devel@nongnu.org; Mon, 27 Jun 2011 11:56:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QbEBD-0002nJ-O8 for qemu-devel@nongnu.org; Mon, 27 Jun 2011 11:56:56 -0400 Received: from mx1.redhat.com ([209.132.183.28]:12386) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QbEBD-0002nD-Be for qemu-devel@nongnu.org; Mon, 27 Jun 2011 11:56:55 -0400 Message-ID: <4E08A8ED.8020305@redhat.com> Date: Mon, 27 Jun 2011 17:59:41 +0200 From: Kevin Wolf MIME-Version: 1.0 References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] IO errors in guest caused by LTP dio test List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Andi Kleen Cc: qemu-devel@nongnu.org Am 23.06.2011 01:36, schrieb Andi Kleen: > > Running LTP testcases/kernel/io/direct_io/test_dma_thread_diotest7 > causes IO errors in the guest. There are no IO errors on the host. > > Kernel Linux 3.0.0-rc* > Using a standard emulated IDE -hda image. Couldn't reproduce this in a quick test with a random guest I had available. What is your complete qemu command line? Is the problem new with the 3.0 RCs or does it also happen with kernels that my existing guests are likely to have in use - say, the F15 kernel? I guess with virtio-blk you don't see the problems? Kevin