From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [PATCH] drm/i915: Convert WARNs during userptr
 revoke to SIGBUS
Date: Fri, 9 Oct 2015 19:14:02 +0200
Message-ID: <20151009171402.GQ26718@phenom.ffwll.local>
References: <1443038844-29873-1-git-send-email-chris@chris-wilson.co.uk>
 <20150928134222.GL3383@phenom.ffwll.local>
 <20150928135230.GB9929@nuc-i3427.alporthouse.com>
 <20150928141457.GY3383@phenom.ffwll.local>
 <56163B4B.6010604@linux.intel.com>
 <20151009074801.GE18060@phenom.ffwll.local>
 <20151009084053.GF27939@nuc-i3427.alporthouse.com>
 <20151009085526.GO26718@phenom.ffwll.local>
 <561782D2.2070408@linux.intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Received: from mail-wi0-f169.google.com (mail-wi0-f169.google.com
 [209.85.212.169])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 81EDA6E0F8
 for <intel-gfx@lists.freedesktop.org>; Fri,  9 Oct 2015 10:11:11 -0700 (PDT)
Received: by wicge5 with SMTP id ge5so77120416wic.0
 for <intel-gfx@lists.freedesktop.org>; Fri, 09 Oct 2015 10:11:09 -0700 (PDT)
Content-Disposition: inline
In-Reply-To: <561782D2.2070408@linux.intel.com>
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: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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