From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Subject: Re: [PATCH] drm/i915: Convert WARNs during userptr
 revoke to SIGBUS
Date: Thu, 24 Sep 2015 11:23:48 +0100
Message-ID: <5603CF34.2000208@linux.intel.com>
References: <1443038844-29873-1-git-send-email-chris@chris-wilson.co.uk>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Received: from mga02.intel.com (mga02.intel.com [134.134.136.20])
 by gabe.freedesktop.org (Postfix) with ESMTP id 774766E7CE
 for <intel-gfx@lists.freedesktop.org>; Thu, 24 Sep 2015 03:23:51 -0700 (PDT)
In-Reply-To: <1443038844-29873-1-git-send-email-chris@chris-wilson.co.uk>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://lists.freedesktop.org/archives/intel-gfx>
List-Post: <mailto:intel-gfx@lists.freedesktop.org>
List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <http://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Errors-To: intel-gfx-bounces@lists.freedesktop.org
Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
To: Chris Wilson <chris@chris-wilson.co.uk>, intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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=