Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030378AbcCQL17 (ORCPT ); Thu, 17 Mar 2016 07:27:59 -0400 Received: from mga03.intel.com ([134.134.136.65]:19399 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933173AbcCQL15 (ORCPT ); Thu, 17 Mar 2016 07:27:57 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,349,1455004800"; d="scan'208";a="766004416" Subject: Re: [lkp] [drm/i915] 396e33ae20: [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe B To: William Dauchy , kernel test robot References: <87vb70ew4v.fsf@yhuang-dev.intel.com> Cc: Matt Roper , lkp@01.org, LKML From: Maarten Lankhorst Message-ID: <56EA94B9.8040401@linux.intel.com> Date: Thu, 17 Mar 2016 12:27:53 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2728 Lines: 49 Op 17-03-16 om 11:49 schreef William Dauchy: > On Mon, Jan 11, 2016 at 2:35 AM, kernel test robot > wrote: >> FYI, we noticed the below changes on >> >> git://anongit.freedesktop.org/drm-intel drm-intel-next-queued >> commit 396e33ae204f52abebec9e578f44c749305500f4 ("drm/i915: Add two-stage ILK-style watermark programming (v10)") >> >> >> +--------------------------------------------------+------------+------------+ >> | | 2dfb0b816d | 396e33ae20 | >> +--------------------------------------------------+------------+------------+ >> | boot_successes | 8 | 19 | >> | boot_failures | 0 | 4 | >> | drm:intel_set_cpu_fifo_underrun_reporting[i915]] | 0 | 4 | >> | drm:intel_cpu_fifo_underrun_irq_handler[i915]] | 0 | 4 | >> | drm:intel_set_pch_fifo_underrun_reporting[i915]] | 0 | 4 | >> | drm:intel_pch_fifo_underrun_irq_handler[i915]] | 0 | 4 | >> +--------------------------------------------------+------------+------------+ >> >> >> >> [ 36.077826] NFS: Registering the id_resolver key type >> [ 36.078178] Key type id_resolver registered >> [ 36.078444] Key type id_legacy registered >> [ 60.884026] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe B >> [ 60.884659] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun >> [ 60.885221] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder B >> [ 60.885887] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder B FIFO underrun >> [ 61.180651] random: nonblocking pool is initialized >> [ 81.430503] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe C >> [ 81.431193] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe C FIFO underrun >> [ 81.431782] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder C >> [ 81.432474] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder C FIFO underrun >> >> >> To reproduce: >> >> git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git >> cd lkp-tests >> bin/lkp install job.yaml # job file is attached in this email >> bin/lkp run job.yaml > I am still triggering these errors on v4.4.6 > Does anybody knows if there is a fix in queue? What can I do to help > debug this issue? > Does it happen with latest -nightly? ~Maarten