From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jani Nikula <jani.nikula@linux.intel.com>
Subject: Re: Deadlock in intel_user_framebuffer_destroy()
Date: Mon, 15 Jun 2015 09:44:15 +0300
Message-ID: <87a8w179og.fsf@intel.com>
References: <20150603134332.GA5548@wunner.de>
 <20150603135741.GB27056@nuc-i3427.alporthouse.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 mga01.intel.com (mga01.intel.com [192.55.52.88])
 by gabe.freedesktop.org (Postfix) with ESMTP id A46336E240
 for <intel-gfx@lists.freedesktop.org>; Sun, 14 Jun 2015 23:46:05 -0700 (PDT)
In-Reply-To: <20150603135741.GB27056@nuc-i3427.alporthouse.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: Chris Wilson <chris@chris-wilson.co.uk>, Lukas Wunner <lukas@wunner.de>
Cc: intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org

T24gV2VkLCAwMyBKdW4gMjAxNSwgQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28u
dWs+IHdyb3RlOgo+IE9uIFdlZCwgSnVuIDAzLCAyMDE1IGF0IDAzOjQzOjMyUE0gKzAyMDAsIEx1
a2FzIFd1bm5lciB3cm90ZToKPj4gSGksCj4+IAo+PiBhIGRlYWRsb2NrIHdhcyBpbnRyb2R1Y2Vk
IGJ5IGNvbW1pdCA2MGE1Y2EwMTVmZmQyYWFjZmU1Njc0YjVhNDAxY2QyYTM3MTU5ZTA3Cj4+IAo+
PiBBdXRob3I6IFZpbGxlIFN5cmrDpGzDpCA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+
Cj4+IERhdGU6ICAgRnJpIEp1biAxMyAxMToxMDo1MyAyMDE0ICswMzAwCj4+IAo+PiAgICAgZHJt
L2k5MTU6IEFkZCBsb2NraW5nIGFyb3VuZCBmcmFtZWJ1ZmZlcl9yZWZlcmVuY2VzLS0KPj4gCj4+
IAo+PiBUaGUgY29tbWl0IGFtZW5kZWQgaW50ZWxfZGlzcGxheS5jOmludGVsX3VzZXJfZnJhbWVi
dWZmZXJfZGVzdHJveSgpIHdpdGgKPj4gbXV0ZXhfbG9jaygmZGV2LT5zdHJ1Y3RfbXV0ZXgpLgo+
PiAKPj4gQSBmZXcgd2Vla3MgcHJpb3IgQ2hyaXMgV2lsc29uIGhhZCBhbWVuZGVkIGludGVsX2Zi
ZGV2LmM6aW50ZWxmYl9jcmVhdGUoKQo+PiB3aXRoIGEgY2FsbCB0byBkcm1fZnJhbWVidWZmZXJf
dW5yZWZlcmVuY2UoKSB3aGlsZSAmZGV2LT5zdHJ1Y3RfbXV0ZXggaXMKPj4gbG9ja2VkIChjb21t
aXQgZWRkNTg2ZmU3MDVlODE5YmM3MTFiNWVkNzE5NGEwYjZmOWYxYTdlMSwgImRybS9pOTE1OiBE
aXNjYXJkCj4+IEJJT1MgZnJhbWVidWZmZXJzIHRvbyBzbWFsbCB0byBhY2NvbW1vZGF0ZSBjaG9z
ZW4gbW9kZSIpLgo+PiAKPgo+IEp1c3QgbW92ZSB0aGUgbXV0ZXhfbG9jayBkb3duIGEgc3RlcC4K
Ckx1Y2FzLCBkaWQgeW91IHRyeSB0aGlzPwoKQlIsCkphbmkuCgoKPgo+IHQgYS9kcml2ZXJzL2dw
dS9kcm0vaTkxNS9pbnRlbF9mYmRldi5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZmJk
ZXYuYwo+IGluZGV4IDYzNzJjZmMuLmE5YjhjNDMgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUv
ZHJtL2k5MTUvaW50ZWxfZmJkZXYuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVs
X2ZiZGV2LmMKPiBAQCAtMjA5LDggKzIwOSw2IEBAIHN0YXRpYyBpbnQgaW50ZWxmYl9jcmVhdGUo
c3RydWN0IGRybV9mYl9oZWxwZXIgKmhlbHBlciwKPiAgICAgICAgIGludCBzaXplLCByZXQ7Cj4g
ICAgICAgICBib29sIHByZWFsbG9jID0gZmFsc2U7Cj4gIAo+IC0gICAgICAgbXV0ZXhfbG9jaygm
ZGV2LT5zdHJ1Y3RfbXV0ZXgpOwo+IC0KPiAgICAgICAgIGlmIChpbnRlbF9mYiAmJgo+ICAgICAg
ICAgICAgIChzaXplcy0+ZmJfd2lkdGggPiBpbnRlbF9mYi0+YmFzZS53aWR0aCB8fAo+ICAgICAg
ICAgICAgICBzaXplcy0+ZmJfaGVpZ2h0ID4gaW50ZWxfZmItPmJhc2UuaGVpZ2h0KSkgewo+IEBA
IC0yMjEsNiArMjE5LDkgQEAgc3RhdGljIGludCBpbnRlbGZiX2NyZWF0ZShzdHJ1Y3QgZHJtX2Zi
X2hlbHBlciAqaGVscGVyLAo+ICAgICAgICAgICAgICAgICBkcm1fZnJhbWVidWZmZXJfdW5yZWZl
cmVuY2UoJmludGVsX2ZiLT5iYXNlKTsKPiAgICAgICAgICAgICAgICAgaW50ZWxfZmIgPSBpZmJk
ZXYtPmZiID0gTlVMTDsKPiAgICAgICAgIH0KPiArCj4gKyAgICAgICBtdXRleF9sb2NrKCZkZXYt
PnN0cnVjdF9tdXRleCk7Cj4gKwo+ICAgICAgICAgaWYgKCFpbnRlbF9mYiB8fCBXQVJOX09OKCFp
bnRlbF9mYi0+b2JqKSkgewo+ICAgICAgICAgICAgICAgICBEUk1fREVCVUdfS01TKCJubyBCSU9T
IGZiLCBhbGxvY2F0aW5nIGEgbmV3IG9uZVxuIik7Cj4gICAgICAgICAgICAgICAgIHJldCA9IGlu
dGVsZmJfYWxsb2MoaGVscGVyLCBzaXplcyk7Cj4KPiAtLSAKPiBDaHJpcyBXaWxzb24sIEludGVs
IE9wZW4gU291cmNlIFRlY2hub2xvZ3kgQ2VudHJlCj4gX19fX19fX19fX19fX19fX19fX19fX19f
X19fX19fX19fX19fX19fX19fX19fX18KPiBJbnRlbC1nZnggbWFpbGluZyBsaXN0Cj4gSW50ZWwt
Z2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwo+IGh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcv
bWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngKCi0tIApKYW5pIE5pa3VsYSwgSW50ZWwgT3BlbiBT
b3VyY2UgVGVjaG5vbG9neSBDZW50ZXIKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f
X19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJl
ZWRlc2t0b3Aub3JnCmh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5m
by9pbnRlbC1nZngK