Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755016Ab1CGSOo (ORCPT ); Mon, 7 Mar 2011 13:14:44 -0500 Received: from mail-yx0-f174.google.com ([209.85.213.174]:43509 "EHLO mail-yx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751493Ab1CGSOn (ORCPT ); Mon, 7 Mar 2011 13:14:43 -0500 MIME-Version: 1.0 X-Originating-IP: [212.235.75.126] In-Reply-To: References: <1292865120-24020-1-git-send-email-felipe.contreras@nokia.com> From: Ohad Ben-Cohen Date: Mon, 7 Mar 2011 20:14:22 +0200 Message-ID: Subject: Re: [PATCH] staging: tidspbridge: protect dmm_map properly To: Felipe Contreras Cc: Felipe Contreras , linux-main , linux-omap , Greg KH , Omar Ramirez Luna , Fernando Guzman Lugo , Nishanth Menon , Ameya Palande Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1103 Lines: 23 On Mon, Mar 7, 2011 at 8:02 PM, Felipe Contreras wrote: > On Mon, Dec 20, 2010 at 7:12 PM, Felipe Contreras > wrote: >> We need to protect not only the dmm_map list, but the individual >> map_obj's, otherwise, we might be building the scatter-gather list with >> garbage. So, use the existing proc_lock for that. >> >> I observed race conditions which caused kernel panics while running >> stress tests. This patch fixes those. > > I just heard that Tuomas Kulve is getting a lot of panics on Gumstix > Overo. I propose we apply this patch on the stable tree ASAP, and if > there's no better proposals, also on .38. Agree that a fix should be merged asap, and I don't mind which. Especially since things have changed lately and chances that we will use this code for OMAP4 too are really small now. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/