From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755073AbaCLQQc (ORCPT ); Wed, 12 Mar 2014 12:16:32 -0400 Received: from mail-pa0-f48.google.com ([209.85.220.48]:65244 "EHLO mail-pa0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754956AbaCLQQ2 (ORCPT ); Wed, 12 Mar 2014 12:16:28 -0400 Message-ID: <5320885B.50507@kernel.dk> Date: Wed, 12 Mar 2014 10:16:27 -0600 From: Jens Axboe User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 MIME-Version: 1.0 To: Felipe Franciosi , linux-kernel@vger.kernel.org CC: Sam Bradshaw Subject: Re: [PATCH 2/2] mtip32xx: Unmap the DMA segments before completing the IO request References: <1394640348-9109-1-git-send-email-felipe@paradoxo.org> <1394640348-9109-3-git-send-email-felipe@paradoxo.org> In-Reply-To: <1394640348-9109-3-git-send-email-felipe@paradoxo.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/12/2014 10:05 AM, Felipe Franciosi wrote: > If the buffers are unmapped after completing a request, then stale data > might be in the request. This is unfortunate, and a real bug. Good catch! -- Jens Axboe