From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rainer Koenig <Rainer.Koenig@ts.fujitsu.com>
Subject: Experiencing FIFO underruns on Intel Skylake platform
Date: Tue, 19 May 2015 13:20:12 +0200
Message-ID: <555B1C6C.8000405@ts.fujitsu.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <dri-devel-bounces@lists.freedesktop.org>
Received: from dgate10.ts.fujitsu.com (dgate10.ts.fujitsu.com [80.70.172.49])
 by gabe.freedesktop.org (Postfix) with ESMTP id D82EE6E631
 for <dri-devel@lists.freedesktop.org>; Tue, 19 May 2015 04:30:14 -0700 (PDT)
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://lists.freedesktop.org/archives/dri-devel>
List-Post: <mailto:dri-devel@lists.freedesktop.org>
List-Help: <mailto:dri-devel-request@lists.freedesktop.org?subject=help>
List-Subscribe: <http://lists.freedesktop.org/mailman/listinfo/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=subscribe>
Errors-To: dri-devel-bounces@lists.freedesktop.org
Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>
To: dri-devel@lists.freedesktop.org
List-Id: dri-devel@lists.freedesktop.org
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