From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Subject: Re: [PATCH] drm/i915: Report if an unbannable context
 is involved in a GPU hang
Date: Mon, 05 Feb 2018 12:01:26 +0200
Message-ID: <87bmh3vjpl.fsf@gaia.fi.intel.com>
References: <20180205094139.10671-1-chris@chris-wilson.co.uk>
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 mga07.intel.com (mga07.intel.com [134.134.136.100])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 5E9F16E267
 for <intel-gfx@lists.freedesktop.org>; Mon,  5 Feb 2018 10:02:27 +0000 (UTC)
In-Reply-To: <20180205094139.10671-1-chris@chris-wilson.co.uk>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://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: <https://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
Cc: Mika@freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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