From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47082) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vb5Jz-0006LW-RX for qemu-devel@nongnu.org; Tue, 29 Oct 2013 05:10:52 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Vb5Jq-0007ee-Q5 for qemu-devel@nongnu.org; Tue, 29 Oct 2013 05:10:43 -0400 Received: from mail-ea0-x236.google.com ([2a00:1450:4013:c01::236]:52490) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vb5Jq-0007ea-Ck for qemu-devel@nongnu.org; Tue, 29 Oct 2013 05:10:34 -0400 Received: by mail-ea0-f182.google.com with SMTP id o10so2737771eaj.41 for ; Tue, 29 Oct 2013 02:10:33 -0700 (PDT) Sender: Paolo Bonzini Message-ID: <526F7B87.9090301@redhat.com> Date: Tue, 29 Oct 2013 10:10:31 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <1382978620-16641-1-git-send-email-pbonzini@redhat.com> <20131028171653.GA14263@redhat.com> <526E9E62.5010709@redhat.com> <20131028180023.GD14339@redhat.com> <526EAEB0.4050903@redhat.com> <20131028184218.GA1739@redhat.com> In-Reply-To: <20131028184218.GA1739@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [WIP PATCH 00/24] IDE cleanups, initial work on AHCI rerror/werror=stop List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Michael S. Tsirkin" Cc: qemu-devel@nongnu.org Il 28/10/2013 19:42, Michael S. Tsirkin ha scritto: > > > Hmm. Actually maybe there was an io error... is there > > > an easy way to find out? > > > > This would be a *host* I/O error, so I doubt. > > Yes, I know. Something like an out of range access on a disk > can trigger it perhaps? Yes, that could happen. The easiest way to find out is probably very low tech: a conditional breakpoint on bdrv_aio_readv or bdrv_aio_writev. Paolo