From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bryan O'Donoghue Subject: Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple times Date: Fri, 31 Jul 2015 19:11:10 +0100 Message-ID: <55BBBA3E.5010102@nexus-software.ie> References: <1438252085-4773-1-git-send-email-pure.logic@nexus-software.ie> <55BA3966.1050806@hurleysoftware.com> <55BA3A12.4000800@nexus-software.ie> <55BA3B21.8000603@nexus-software.ie> <55BA9AF6.6060808@hurleysoftware.com> <55BABB59.9080409@nexus-software.ie> <55BB457F.2060903@nexus-software.ie> <55BB46D4.9010006@nexus-software.ie> <55BB4D82.8070605@nexus-software.ie> <55BBA5B7.9040809@nexus-software.ie> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wi0-f179.google.com (mail-wi0-f179.google.com [209.85.212.179]) by gabe.freedesktop.org (Postfix) with ESMTPS id A1CFF6E04E for ; Fri, 31 Jul 2015 11:11:13 -0700 (PDT) Received: by wicgj17 with SMTP id gj17so28303949wic.1 for ; Fri, 31 Jul 2015 11:11:11 -0700 (PDT) In-Reply-To: <55BBA5B7.9040809@nexus-software.ie> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Ilia Mirkin Cc: Peter Hurley , Timo Aaltonen , Emil Velikov , "linux-kernel@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , Ben Skeggs , Maarten Lankhorst List-Id: dri-devel@lists.freedesktop.org T24gMzEvMDcvMTUgMTc6NDMsIEJyeWFuIE8nRG9ub2dodWUgd3JvdGU6Cj4gT24gMzEvMDcvMTUg MTc6MzYsIElsaWEgTWlya2luIHdyb3RlOgo+PiBEbyB5b3UgaGF2ZSBhIHJlcHJvZHVjaWJsZSB3 YXkgb2YgYWNoaWV2aW5nIHRoZSBtdWx0aXBsZSBidWZmZXIgb24KPj4gdmFsaWRhdGlvbiBsaXN0 IHRoaW5nPwoKUmVsaWFibGUgZW5vdWdoLiBTdGFydCBDaHJvbWUsIHRoZW4gZ2V0IENocm9tZSB0 byBvcGVuIGEgbWVudSBvbiB0b3Agb2YgCml0J3Mgb3duIHNjcmVlbiAtIGZvciBleGFtcGxlIGNs aWNrIHRoZSB0b3AgcmlnaHQgbWVudSBiYXIgLSB0aGUgdGhpbmcgCndpdGggdGhlIHRocmVlIGhv cml6b250YWwgYmFycywgc2Nyb2xsIGRvd24gdG8gJ3JlY2VudCB0YWJzJyBhbmQgbGV0IHRoZSAK bW91c2UgaG92ZXIuCgpZb3UnbGwgZ2V0IGEgbWVudSB0aGF0IG9wZW5zIHVwIG92ZXIgdGhlIG1h aW4gY2hyb21lIHNjcmVlbiBhbmQgYXQgdGhhdCAKcG9pbnQgeW91J2xsIGFsc28gZ2V0IGEgJ211 bHRpcGxlIGluc3RhbmNlcyBvZiBidWZmZXInCgpCYXNpY2FsbHkgZHJhd2luZyBvbmUgd2luZG93 IG9uIHRvcCBvZiBhbm90aGVyIGluc2lkZSBvZiB0aGUgc2FtZSBDaHJvbWUgCnRhYi4KCkkgZ3Vl c3MgdGhlIHNhbWUgUElEIGlzIG1hcHBpbmcgdGhlIHNhbWUgcGllY2Ugb2YgbWVtb3J5IHR3aWNl IGJlY2F1c2UgCmlmIEkgb3BlbiBhIHNlcGVyYXRlIENocm9tZSB3aW5kb3cgKHdoaWNoIHdpbGwg aGF2ZSBhIHNlcGVyYXRlIFBJRCkgYW5kIApkcmFnIG9uZSB3aW5kb3cgb3ZlciB0aGUgb3RoZXIg d2UgZG9uJ3Qgc2VlIGEgcmVwZWF0LgoKSWYgaXQgaGVscHMKCmRlY2thcmRAYWluZWtvOn4kIGRt ZXNnIHwgdGFpbCAtbiA1ClsgNjkwMC4yNDk0MjddIG5vdXZlYXUgRVtjaHJvbWVbMzE3Nl1dIG11 bHRpcGxlIGluc3RhbmNlcyBvZiBidWZmZXIgNDU2IApvbiB2YWxpZGF0aW9uIGxpc3QKWyA2OTIw Ljk5MjQ3NV0gbm91dmVhdSBFW2Nocm9tZVszMTc2XV0gbXVsdGlwbGUgaW5zdGFuY2VzIG9mIGJ1 ZmZlciA0NTggCm9uIHZhbGlkYXRpb24gbGlzdApbIDY5MzQuMjc3MzUyXSBub3V2ZWF1IEVbY2hy b21lWzMxNzZdXSBtdWx0aXBsZSBpbnN0YW5jZXMgb2YgYnVmZmVyIDQ1OCAKb24gdmFsaWRhdGlv biBsaXN0ClsgNjk5NC4zMDM2MDBdIG5vdXZlYXUgRVtjaHJvbWVbMzE3Nl1dIG11bHRpcGxlIGlu c3RhbmNlcyBvZiBidWZmZXIgNDU4IApvbiB2YWxpZGF0aW9uIGxpc3QKWyA3MDY3LjQzNjA0OV0g bm91dmVhdSBFW2Nocm9tZVszMTc2XV0gbXVsdGlwbGUgaW5zdGFuY2VzIG9mIGJ1ZmZlciA0NTYg Cm9uIHZhbGlkYXRpb24gbGlzdAoKCmRlY2thcmRAYWluZWtvOn4kIHBzIC1heCB8IGdyZXAgY2hy b21lIHwgZ3JlcCAzMTc2CiAgMzE3NiBwdHMvNiAgICBTbCsgICAgMDoyOSAvb3B0L2dvb2dsZS9j aHJvbWUvY2hyb21lIC0tdHlwZT1ncHUtcHJvY2VzcyAKLS1jaGFubmVsPTMxNDMuMC4xMjk1NTkx IGl2ZXMtcGFzc2VkLWJ5LWZkIC0tdjgtc25hcHNob3QtcGFzc2VkLWJ5LWZkIAotLXN1cHBvcnRz LWR1YWwtZ3B1cz1mYWxzZSAtLWdwdS1kcml2ZXItYnVnLXdvcmthcm91bmRzPTIsMjksMzIsNDUs NTUsNTcgCi0tZGlzYWJsZS1hY2NlbGVyYXRlZC12aWRlby1kZWNvZGUgLS1ncHUtdmVuZG9yLWlk PTB4MTBkZSAKLS1ncHUtZGV2aWNlLWlkPTB4MGZlOSAtLWdwdS1kcml2ZXItdmVuZG9yIC0tZ3B1 LWRyaXZlci12ZXJzaW9uIAotLXY4LW5hdGl2ZXMtcGFzc2VkLWJ5LWZkIC0tdjgtc25hcHNob3Qt cGFzc2VkLWJ5LWZkCgo+IFdoYXQgR1BVIGRvIHlvdSBoYXZlPyAoTG9va2luZyBmb3IgYSBjb2Rl bmFtZSwKPj4gbm90IGEgbWFya2V0aW5nIG5hbWUuLi4gbHNwY2kgc2hvdWxkIGhhdmUgaXQuLi4g R0Z4eHggb3IgR0t4eHggb3IKPgo+IDAxOjAwLjAgVkdBIGNvbXBhdGlibGUgY29udHJvbGxlcjog TlZJRElBIENvcnBvcmF0aW9uIEdLMTA3TSBbR2VGb3JjZSBHVAo+IDc1ME0gTWFjIEVkaXRpb25d IChyZXYgYTEpIChwcm9nLWlmIDAwIFtWR0EgY29udHJvbGxlcl0pCj4gICAgICBTdWJzeXN0ZW06 IEFwcGxlIEluYy4gRGV2aWNlIDAxMzAKPiAgICAgIEZsYWdzOiBidXMgbWFzdGVyLCBmYXN0IGRl dnNlbCwgbGF0ZW5jeSAwLCBJUlEgNDUKPiAgICAgIE1lbW9yeSBhdCBjMDAwMDAwMCAoMzItYml0 LCBub24tcHJlZmV0Y2hhYmxlKSBbc2l6ZT0xNk1dCj4gICAgICBNZW1vcnkgYXQgODAwMDAwMDAg KDY0LWJpdCwgcHJlZmV0Y2hhYmxlKSBbc2l6ZT0yNTZNXQo+ICAgICAgTWVtb3J5IGF0IDkwMDAw MDAwICg2NC1iaXQsIHByZWZldGNoYWJsZSkgW3NpemU9MzJNXQo+ICAgICAgSS9PIHBvcnRzIGF0 IDEwMDAgW3NpemU9MTI4XQo+ICAgICAgRXhwYW5zaW9uIFJPTSBhdCBjMTAwMDAwMCBbZGlzYWJs ZWRdIFtzaXplPTUxMktdCj4gICAgICBDYXBhYmlsaXRpZXM6IFs2MF0gUG93ZXIgTWFuYWdlbWVu dCB2ZXJzaW9uIDMKPiAgICAgIENhcGFiaWxpdGllczogWzY4XSBNU0k6IEVuYWJsZSsgQ291bnQ9 MS8xIE1hc2thYmxlLSA2NGJpdCsKPiAgICAgIENhcGFiaWxpdGllczogWzc4XSBFeHByZXNzIEVu ZHBvaW50LCBNU0kgMDAKPiAgICAgIENhcGFiaWxpdGllczogW2I0XSBWZW5kb3IgU3BlY2lmaWMg SW5mb3JtYXRpb246IExlbj0xNCA8Pz4KPiAgICAgIENhcGFiaWxpdGllczogWzEwMF0gVmlydHVh bCBDaGFubmVsCj4gICAgICBDYXBhYmlsaXRpZXM6IFsxMjhdIFBvd2VyIEJ1ZGdldGluZyA8Pz4K PiAgICAgIENhcGFiaWxpdGllczogWzQyMF0gQWR2YW5jZWQgRXJyb3IgUmVwb3J0aW5nCj4gICAg ICBDYXBhYmlsaXRpZXM6IFs2MDBdIFZlbmRvciBTcGVjaWZpYyBJbmZvcm1hdGlvbjogSUQ9MDAw MSBSZXY9MQo+IExlbj0wMjQgPD8+Cj4gICAgICBDYXBhYmlsaXRpZXM6IFs5MDBdICMxOQo+ICAg ICAgS2VybmVsIGRyaXZlciBpbiB1c2U6IG5vdXZlYXUKPgo+IE1hY2Jvb2sgcHJvIHJldGluYSAy MDE0CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmkt ZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDov L2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753493AbbGaSL2 (ORCPT ); Fri, 31 Jul 2015 14:11:28 -0400 Received: from mail-wi0-f176.google.com ([209.85.212.176]:34114 "EHLO mail-wi0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752688AbbGaSLM (ORCPT ); Fri, 31 Jul 2015 14:11:12 -0400 Message-ID: <55BBBA3E.5010102@nexus-software.ie> Date: Fri, 31 Jul 2015 19:11:10 +0100 From: "Bryan O'Donoghue" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.8.0 MIME-Version: 1.0 To: Ilia Mirkin CC: Peter Hurley , Timo Aaltonen , Emil Velikov , Maarten Lankhorst , "linux-kernel@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , Ben Skeggs Subject: Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple times References: <1438252085-4773-1-git-send-email-pure.logic@nexus-software.ie> <55BA3966.1050806@hurleysoftware.com> <55BA3A12.4000800@nexus-software.ie> <55BA3B21.8000603@nexus-software.ie> <55BA9AF6.6060808@hurleysoftware.com> <55BABB59.9080409@nexus-software.ie> <55BB457F.2060903@nexus-software.ie> <55BB46D4.9010006@nexus-software.ie> <55BB4D82.8070605@nexus-software.ie> <55BBA5B7.9040809@nexus-software.ie> In-Reply-To: <55BBA5B7.9040809@nexus-software.ie> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 31/07/15 17:43, Bryan O'Donoghue wrote: > On 31/07/15 17:36, Ilia Mirkin wrote: >> Do you have a reproducible way of achieving the multiple buffer on >> validation list thing? Reliable enough. Start Chrome, then get Chrome to open a menu on top of it's own screen - for example click the top right menu bar - the thing with the three horizontal bars, scroll down to 'recent tabs' and let the mouse hover. You'll get a menu that opens up over the main chrome screen and at that point you'll also get a 'multiple instances of buffer' Basically drawing one window on top of another inside of the same Chrome tab. I guess the same PID is mapping the same piece of memory twice because if I open a seperate Chrome window (which will have a seperate PID) and drag one window over the other we don't see a repeat. If it helps deckard@aineko:~$ dmesg | tail -n 5 [ 6900.249427] nouveau E[chrome[3176]] multiple instances of buffer 456 on validation list [ 6920.992475] nouveau E[chrome[3176]] multiple instances of buffer 458 on validation list [ 6934.277352] nouveau E[chrome[3176]] multiple instances of buffer 458 on validation list [ 6994.303600] nouveau E[chrome[3176]] multiple instances of buffer 458 on validation list [ 7067.436049] nouveau E[chrome[3176]] multiple instances of buffer 456 on validation list deckard@aineko:~$ ps -ax | grep chrome | grep 3176 3176 pts/6 Sl+ 0:29 /opt/google/chrome/chrome --type=gpu-process --channel=3143.0.1295591 ives-passed-by-fd --v8-snapshot-passed-by-fd --supports-dual-gpus=false --gpu-driver-bug-workarounds=2,29,32,45,55,57 --disable-accelerated-video-decode --gpu-vendor-id=0x10de --gpu-device-id=0x0fe9 --gpu-driver-vendor --gpu-driver-version --v8-natives-passed-by-fd --v8-snapshot-passed-by-fd > What GPU do you have? (Looking for a codename, >> not a marketing name... lspci should have it... GFxxx or GKxxx or > > 01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT > 750M Mac Edition] (rev a1) (prog-if 00 [VGA controller]) > Subsystem: Apple Inc. Device 0130 > Flags: bus master, fast devsel, latency 0, IRQ 45 > Memory at c0000000 (32-bit, non-prefetchable) [size=16M] > Memory at 80000000 (64-bit, prefetchable) [size=256M] > Memory at 90000000 (64-bit, prefetchable) [size=32M] > I/O ports at 1000 [size=128] > Expansion ROM at c1000000 [disabled] [size=512K] > Capabilities: [60] Power Management version 3 > Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+ > Capabilities: [78] Express Endpoint, MSI 00 > Capabilities: [b4] Vendor Specific Information: Len=14 > Capabilities: [100] Virtual Channel > Capabilities: [128] Power Budgeting > Capabilities: [420] Advanced Error Reporting > Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 > Len=024 > Capabilities: [900] #19 > Kernel driver in use: nouveau > > Macbook pro retina 2014