Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758542Ab1F3HnX (ORCPT ); Thu, 30 Jun 2011 03:43:23 -0400 Received: from caramon.arm.linux.org.uk ([78.32.30.218]:49102 "EHLO caramon.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751307Ab1F3HnR (ORCPT ); Thu, 30 Jun 2011 03:43:17 -0400 Date: Thu, 30 Jun 2011 08:43:01 +0100 From: Russell King To: Qin Dehua Cc: linux-kernel@vger.kernel.org, santosh.shilimkar@ti.com, dan.j.williams@intel.com, neilb@suse.de Subject: Re: PROBLEM: ARM-dma-mapping-fix-for-speculative-prefetching cause OOPS Message-ID: <20110630074301.GC27959@flint.arm.linux.org.uk> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1102 Lines: 29 On Thu, Jun 30, 2011 at 12:09:15PM +0800, Qin Dehua wrote: > The 2.6.38.8 Kernel make our IOP 341 XScale processor based RAID6 crashes. > > After doing a bisection, We found commit > 2ffe2da3e71652d4f4cae19539b5c78c2a239136 cause the problem. > > That commit is only for ARMv6 and ARMv7 CPUs, so we revert it on > 2.6.38.8 Kernel, and then our raid box runs OK. > > Following are some kernel messages when the system crashes: > > * The kernel config has CONFIG_ASYNC_PQ=y CONFIG_RAID6_PQ=y These traces are from 2.6.32... And I assume have CONFIG_BUG unset because you have no verbose bug reporting (it's not reporting the file/line which is necessary to identify which BUG has been hit in the raid code.) Could you reproduce with CONFIG_BUG=y please? -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: -- 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/