From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-vw0-f46.google.com ([209.85.212.46]:36938 "EHLO mail-vw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754123Ab0KPXqb (ORCPT ); Tue, 16 Nov 2010 18:46:31 -0500 Received: by vws13 with SMTP id 13so764342vws.19 for ; Tue, 16 Nov 2010 15:46:30 -0800 (PST) Message-ID: <4CE317D3.2020504@brooks.nu> Date: Tue, 16 Nov 2010 16:46:27 -0700 From: Lane Brooks MIME-Version: 1.0 To: Laurent Pinchart , linux-media@vger.kernel.org Subject: Translation faults with OMAP ISP References: <4CE16AA2.3000208@brooks.nu> <4CE18EE4.7080203@brooks.nu> <201011160001.10737.laurent.pinchart@ideasonboard.com> In-Reply-To: <201011160001.10737.laurent.pinchart@ideasonboard.com> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit List-ID: Sender: Laurent, I am getting iommu translation errors when I try to use the CCDC output after using the Resizer output. If I use the CCDC output to stream some video, then close it down, switch to the Resizer output and open it up and try to stream, I get the following errors spewing out: omap-iommu omap-iommu.0: omap2_iommu_fault_isr: da:00d0ef00 translation fault omap-iommu omap-iommu.0: iommu_fault_handler: da:00d0ef00 pgd:ce664034 *pgd:00000000 and the select times out. From a fresh boot, I can stream just fine from the Resizer and then switch to the CCDC output just fine. It is only when I go from the CCDC to the Resizer that I get this problem. Furthermore, when it gets into this state, then anything dev node I try to use has the translation errors and the only way to recover is to reboot. Any ideas on the problem? Thanks, Lane