From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Hilman Subject: Re: exynos5420/arndale-octa: imprecise external aborts on exynos_defconfig Date: Wed, 10 Sep 2014 11:46:14 -0700 Message-ID: <7h7g1bwbyh.fsf@deeprootsystems.com> References: Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from mail.kernel.org ([198.145.19.201]:56768 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750882AbaIJSqR (ORCPT ); Wed, 10 Sep 2014 14:46:17 -0400 In-Reply-To: (Tyler Baker's message of "Wed, 10 Sep 2014 11:20:19 -0700") Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: Tyler Baker Cc: linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org Tyler Baker writes: > Exynos5420-based Arndale octa boards have recently started failing boot > tests due to imprecise external aborts. This only appears to happen > when using exynos_defconfig and boots fine with multi_v7_defconfig. The > issue seems to be intermittent, so is not reliably reproducable and > difficult to bisect. Here are a few boot logs from recent > mainline/linux-next kernels that are failing: FYI, I'm seeing the same periodic aborts. For example, here's my boot of next-20140910: http://images.armcloud.us/kernel-ci/next/next-20140910/arm-exynos_defconfig/boot-exynos5420-arndale-octa.html However, my userspace is much simpler and doesn't seem to cause a panic, so my boot tests report passing. (I should fixup my scripts so these imprecise aborts are reported as a FAIL.) I'm glad you pointed out that it happens only with exynos_defconfig and not multi_v7_defconfig because I noticed that too. I haven't had the time to track it any further than that, so maybe the exynos folks can help track it down from here. Thanks for reporting this, Kevin From mboxrd@z Thu Jan 1 00:00:00 1970 From: khilman@kernel.org (Kevin Hilman) Date: Wed, 10 Sep 2014 11:46:14 -0700 Subject: exynos5420/arndale-octa: imprecise external aborts on exynos_defconfig In-Reply-To: (Tyler Baker's message of "Wed, 10 Sep 2014 11:20:19 -0700") References: Message-ID: <7h7g1bwbyh.fsf@deeprootsystems.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Tyler Baker writes: > Exynos5420-based Arndale octa boards have recently started failing boot > tests due to imprecise external aborts. This only appears to happen > when using exynos_defconfig and boots fine with multi_v7_defconfig. The > issue seems to be intermittent, so is not reliably reproducable and > difficult to bisect. Here are a few boot logs from recent > mainline/linux-next kernels that are failing: FYI, I'm seeing the same periodic aborts. For example, here's my boot of next-20140910: http://images.armcloud.us/kernel-ci/next/next-20140910/arm-exynos_defconfig/boot-exynos5420-arndale-octa.html However, my userspace is much simpler and doesn't seem to cause a panic, so my boot tests report passing. (I should fixup my scripts so these imprecise aborts are reported as a FAIL.) I'm glad you pointed out that it happens only with exynos_defconfig and not multi_v7_defconfig because I noticed that too. I haven't had the time to track it any further than that, so maybe the exynos folks can help track it down from here. Thanks for reporting this, Kevin