From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?Q?Michel_D=c3=a4nzer?= Subject: Re: [radeon r100] when ring test fails, provide users with option to test Date: Wed, 2 Dec 2015 12:14:21 +0900 Message-ID: <565E620D.3090605@daenzer.net> References: <20151128205840.GA26757@amd> <565B56A5.4080702@amd.com> <20151129222235.GA25692@amd> <565C0B5A.2040103@amd.com> <20151201100110.GE21222@amd> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail.gna.ch (darkcity.gna.ch [195.226.6.51]) by gabe.freedesktop.org (Postfix) with ESMTP id 19BB46E0C1 for ; Tue, 1 Dec 2015 19:14:33 -0800 (PST) In-Reply-To: <20151201100110.GE21222@amd> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Pavel Machek , =?UTF-8?Q?Christian_K=c3=b6nig?= Cc: alexander.deucher@amd.com, Trivial patch monkey , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org T24gMDEuMTIuMjAxNSAxOTowMSwgUGF2ZWwgTWFjaGVrIHdyb3RlOgo+IE9uIE1vbiAyMDE1LTEx LTMwIDA5OjM5OjU0LCBDaHJpc3RpYW4gS8O2bmlnIHdyb3RlOgo+PiBPbiAyOS4xMS4yMDE1IDIz OjIyLCBQYXZlbCBNYWNoZWsgd3JvdGU6Cj4+PiBPbiBTdW4gMjAxNS0xMS0yOSAyMDo0ODo1Mywg Q2hyaXN0aWFuIEvDtm5pZyB3cm90ZToKPj4+PiBPbiAyOC4xMS4yMDE1IDIxOjU4LCBQYXZlbCBN YWNoZWsgd3JvdGU6Cj4+Pj4+IFJpbmcgdGVzdCBmYWlsdXJlIGlzIG9mdGVuIGNhdXNlZCBieSB0 b28gaGlnaCBhZ3Btb2RlLiBUZWxsIHRoZSB1c2VyCj4+Pj4+IHdoYXQgdG8gdHJ5Lgo+Pj4+Pgo+ Pj4+PiBTaWduZWQtb2ZmLWJ5OiBQYXZlbCBNYWNoZWsgPHBhdmVsQHVjdy5jej4KPj4+PiBOQUss IHRoZSByaW5nIHRlc3QgY2FuIGZhaWwgZm9yIGFueSBudW1iZXIgb2YgcmVhc29ucyBhbmQgdGhl IGFncG1vZGUgaXMKPj4+PiBhY3R1YWxseSByYXRoZXIgdW5saWtlbHkgdG8gYmUgdGhlIGNhdXNl Lgo+Pj4gV2VsbCwgd2hlbiBJIGFza2VkIG9uIHRoZSBsaXN0ICJ3aHkgdGhpcyBpcyBoYXBwZW5l ZCIgSSBnb3QgInVtbSwKPj4+IG5vb25lIGtub3dzIiByZXNwb25zZSB0aGF0IHdhcyBub3QgZXhh Y3RseSBoZWxwZnVsLiBBbmQgdGhlbiBzb21lb25lCj4+PiB0b2xkIG1lIGFib3V0IGFncG1vZGUu Cj4+Pgo+Pj4gSWYgeW91IGtub3cgYWJvdXQgdGhlIHJlYXNvbnMgaXQgY2FuIGZhaWwsIGNvdWxk IHlvdSBsaXN0IHRoZW0gbmVhcgo+Pj4gdGhlIERSTV9FUlJPUiwgYXQgbGVhc3QgYXMgYSBjb21t ZW50Pwo+Pgo+PiBXZWxsIGFzIEkgc2FpZCwgdGhhdCBjb3VsZCBiZSBhbnkgbnVtYmVyIG9mIHJl YXNvbnMuIFNvbWUgb2YgdGhlbSBldmVuCj4+IGNvbXBsZXRlbHkgdW5yZWxhdGVkIHRvIHRoZSBk cml2ZXIgaXRzZWxmLgo+Pgo+PiBFLmcuIEJJT1Mgc2V0dGluZywgZmF1bHR5IGhhcmR3YXJlLCBw cm9ibGVtcyB3aXRoIHRoZSB3cml0ZWJhY2sgZXRjLi4uIFRoZXJlCj4+IGlzIHJlYWxseSBub3Qg YSBsaXN0IHlvdSBjb3VsZCBnaXZlIGhlcmUuCj4+Cj4+IExvd2VyaW5nIHRoZSBhZ3Btb2RlIHVz dWFsbHkgaGVscHMgbW9yZSB0byBwcmV2ZW50IHJhbmRvbSBjb3JydXB0aW9ucyBhbmQKPj4gcHJv YmxlbXMgdW5kZXIgbG9hZC4KPiAKPiBUYWtlIGEgbG9vayBhdAo+IAo+IGh0dHA6Ly93d3cuZ29z c2FtZXItdGhyZWFkcy5jb20vbGlzdHMvbGludXgva2VybmVsLzIxOTcxODMKPiAKPiAuIEkgaGFk IGEgcHJvYmxlbSwgeW91IGRpZCBub3Qga25vdyBob3cgdG8gZGVidWcgaXQsIGJ1dCBpdCBhbHJl YWR5Cj4gaGFwcGVuZWQgdG8gcGVib2xsZSBhdCB0aXNjYWxpIC4uLiBhbmQgeWVzLCBpdCB3YXMg YWdwbW9kZS4gVGhhdAo+IHByb2JsZW0gaXMgY2xlYXJseSBtb3JlIGNvbW1vbiB0aGVuIHlvdSBy ZWFsaXplLi4uIFNvIHRoaXMgc2hvdWxkIGdvCj4gaW4uCgpJIGFncmVlIHdpdGggQ2hyaXN0aWFu LCBidXQgYXQgdGhlIHZlcnkgbGVhc3QsIGFncG1vZGUgbXVzdCBub3QgYmUKbWVudGlvbmVkIGlm IEFHUCBpc24ndCBiZWluZyB1c2VkIGluIHRoZSBmaXJzdCBwbGFjZSwgaS5lLiBlaXRoZXIgdGhl CkdQVSBpc24ndCBBR1Agb3IgaXMgYmVpbmcgZm9yY2VkIHRvIFBDSShlKSBtb2RlLgoKCi0tIApF YXJ0aGxpbmcgTWljaGVsIETDpG56ZXIgICAgICAgICAgICAgICB8ICAgICAgICAgICAgICAgaHR0 cDovL3d3dy5hbWQuY29tCkxpYnJlIHNvZnR3YXJlIGVudGh1c2lhc3QgICAgICAgICAgICAgfCAg ICAgICAgICAgICBNZXNhIGFuZCBYIGRldmVsb3BlcgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBs aXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFu L2xpc3RpbmZvL2RyaS1kZXZlbAo= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757527AbbLBDOc (ORCPT ); Tue, 1 Dec 2015 22:14:32 -0500 Received: from darkcity.gna.ch ([195.226.6.51]:39170 "EHLO mail.gna.ch" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753742AbbLBDOa (ORCPT ); Tue, 1 Dec 2015 22:14:30 -0500 Subject: Re: [radeon r100] when ring test fails, provide users with option to test To: Pavel Machek , =?UTF-8?Q?Christian_K=c3=b6nig?= References: <20151128205840.GA26757@amd> <565B56A5.4080702@amd.com> <20151129222235.GA25692@amd> <565C0B5A.2040103@amd.com> <20151201100110.GE21222@amd> Cc: alexander.deucher@amd.com, Trivial patch monkey , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org From: =?UTF-8?Q?Michel_D=c3=a4nzer?= X-Enigmail-Draft-Status: N1110 Message-ID: <565E620D.3090605@daenzer.net> Date: Wed, 2 Dec 2015 12:14:21 +0900 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.3.0 MIME-Version: 1.0 In-Reply-To: <20151201100110.GE21222@amd> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01.12.2015 19:01, Pavel Machek wrote: > On Mon 2015-11-30 09:39:54, Christian König wrote: >> On 29.11.2015 23:22, Pavel Machek wrote: >>> On Sun 2015-11-29 20:48:53, Christian König wrote: >>>> On 28.11.2015 21:58, Pavel Machek wrote: >>>>> Ring test failure is often caused by too high agpmode. Tell the user >>>>> what to try. >>>>> >>>>> Signed-off-by: Pavel Machek >>>> NAK, the ring test can fail for any number of reasons and the agpmode is >>>> actually rather unlikely to be the cause. >>> Well, when I asked on the list "why this is happened" I got "umm, >>> noone knows" response that was not exactly helpful. And then someone >>> told me about agpmode. >>> >>> If you know about the reasons it can fail, could you list them near >>> the DRM_ERROR, at least as a comment? >> >> Well as I said, that could be any number of reasons. Some of them even >> completely unrelated to the driver itself. >> >> E.g. BIOS setting, faulty hardware, problems with the writeback etc... There >> is really not a list you could give here. >> >> Lowering the agpmode usually helps more to prevent random corruptions and >> problems under load. > > Take a look at > > http://www.gossamer-threads.com/lists/linux/kernel/2197183 > > . I had a problem, you did not know how to debug it, but it already > happened to pebolle at tiscali ... and yes, it was agpmode. That > problem is clearly more common then you realize... So this should go > in. I agree with Christian, but at the very least, agpmode must not be mentioned if AGP isn't being used in the first place, i.e. either the GPU isn't AGP or is being forced to PCI(e) mode. -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer