Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753370AbbHNV4c (ORCPT ); Fri, 14 Aug 2015 17:56:32 -0400 Received: from pandora.arm.linux.org.uk ([78.32.30.218]:60225 "EHLO pandora.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753218AbbHNV4a (ORCPT ); Fri, 14 Aug 2015 17:56:30 -0400 Date: Fri, 14 Aug 2015 22:56:17 +0100 From: Russell King - ARM Linux To: Murali Karicheri Cc: santosh shilimkar , ssantosh@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] ARM: keystone: add a work around to handle asynchronous external abort Message-ID: <20150814215617.GA7557@n2100.arm.linux.org.uk> References: <1439320409-20084-1-git-send-email-m-karicheri2@ti.com> <55CDF579.4050408@ti.com> <20150814140934.GX7557@n2100.arm.linux.org.uk> <55CE05EC.4040909@oracle.com> <55CE633C.10402@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <55CE633C.10402@ti.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 914 Lines: 18 On Fri, Aug 14, 2015 at 05:53:00PM -0400, Murali Karicheri wrote: > We have spend some time already to debug the root cause. Do you have idea on > how this was hunted down on OMAP that we can learn from? The bad address is > NULL and it seems to happen very rarely and is not easily reproducible. > Don't want to put this workaround, but we couldn't track it down either. So > any help to debug this will be appreciated. If you try applying Lucas' patch, you should receive the abort earlier in the kernel boot up, which may help narrow down what is provoking it. -- FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up according to speedtest.net. -- 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/