From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joonas Lahtinen Subject: Re: v4.20-rc1: list_del corruption on thinkpad x220, graphics related? Date: Mon, 10 Dec 2018 10:28:39 +0200 Message-ID: <64409c484c0601e7504ccc0cf8d211b3bb524ebe.camel@linux.intel.com> References: <20181108175803.GA10785@amd> <154279919462.20217.14259089584802660420@jlahtine-desk.ger.corp.intel.com> <20181121115449.GA32455@amd> <154296105546.7930.1457928786446716358@jlahtine-desk.ger.corp.intel.com> <20181124152352.GA9548@amd> <20181208111346.GA5535@amd> <20181208112447.GA9663@amd> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 342A589E43 for ; Mon, 10 Dec 2018 08:28:44 +0000 (UTC) In-Reply-To: <20181208112447.GA9663@amd> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Pavel Machek Cc: intel-gfx@lists.freedesktop.org, x86@kernel.org, kernel list , rodrigo.vivi@intel.com, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, tglx@linutronix.de List-Id: intel-gfx@lists.freedesktop.org T24gU2F0LCAyMDE4LTEyLTA4IGF0IDEyOjI0ICswMTAwLCBQYXZlbCBNYWNoZWsgd3JvdGU6Cj4g T24gU2F0IDIwMTgtMTItMDggMTI6MTM6NDYsIFBhdmVsIE1hY2hlayB3cm90ZToKPiA+IEhpIQo+ ID4gCj4gPiA+ID4gPiA+IFRoZXJlJ3Mgb25lIHNpbWlsYXIgZm9yIG5vdXZlYXUgaW4gQnVnemls bGEsIGJ1dCBpdCBzZWVtcyBsaWtlIGEgZ2VudWluZQo+ID4gPiA+ID4gPiBtZW1vcnkgY29ycnVw dGlvbiAoMSBiaXQgZmxpcHBlZCk6Cj4gPiA+ID4gPiA+IAo+ID4gPiA+ID4gPiBodHRwczovL2J1 Z3MuZnJlZWRlc2t0b3Aub3JnL3Nob3dfYnVnLmNnaT9pZD04NDg4MAo+ID4gPiA+ID4gPiAKPiA+ ID4gPiA+ID4gQW55IGV4dHJhIGluZm9ybWF0aW9uIHdvdWxkIGJlIG9mIHVzZSA6KQo+ID4gPiA+ ID4gPiAKPiA+ID4gPiA+ID4gUmVnYXJkcywgSm9vbmFzCj4gPiA+ID4gPiA+IAo+ID4gPiA+ID4g PiBQUy4gQ291bGQgeW91IG9wZW4gYSBidWcgdG8gQnVnemlsbGEsIGl0J2xsIGhlbHAgdG8gY29s bGVjdCB0aGUKPiA+ID4gPiA+ID4gaW5mb3JtYXRpb24gaW4gb25lIGNvbnNvbGlkYXRlZCBwbGFj ZToKPiA+ID4gPiA+ID4gCj4gPiA+ID4gPiA+IGh0dHBzOi8vMDEub3JnL2xpbnV4Z3JhcGhpY3Mv ZG9jdW1lbnRhdGlvbi9ob3ctcmVwb3J0LWJ1Z3MKPiA+ID4gPiA+IAo+ID4gPiA+ID4gSSBwcmVm ZXIgZW1haWwuLi4gY2VydGFpbmx5IGZvciBidWdzIHRoYXQgY2FuJ3QgYmUgcmVwcm9kdWNlZC4K PiA+ID4gPiAKPiA+ID4gPiBCeSBhZGRpbmcgaXQgdG8gdGhlIEJ1Z3ppbGxhIGl0IG1heSBiZSBy ZWNvZ25pemVkIGJ5IHNvbWVib2R5IGVsc2UKPiA+ID4gPiB3aG8gaXMgZXhwZXJpZW5jaW5nIGEg c2ltaWxhciBpc3N1ZS4gSW50ZXJuZXQgcG9pbnRzIGFyZSBub3QgZGVkdWN0ZWQKPiA+ID4gPiBm b3Igc3VibWl0dGluZyBidWdzIGluIGdvb2QgZmFpdGgsIGV2ZW4gaWYgdGhleSBnZXQgY2xvc2Vk IGFzCj4gPiA+ID4gTk9UQUJVRy4KPiA+IAo+ID4gV2VsbCwgeW91ciBkb2N1bWVudGF0aW9uIHN1 Z2dlc3RzIHlvdSdsbCBkZWR1Y2UgbXkgaW50ZXJuZXQgcG9pbnRzOgo+ID4gCj4gPiAJQmVmb3Jl IGZpbGluZyB0aGUgYnVnLCBwbGVhc2UgdHJ5IHRvIHJlcHJvZHVjZSB5b3VyIGlzc3VlIHdpdGgg dGhlCj4gPiAJbGF0ZXN0IGtlcm5lbC4gVXNlIHRoZSBsYXRlc3QgZHJtLXRpcCBicmFuY2ggZnJv bQo+ID4gCWh0dHA6Ly9jZ2l0LmZyZWVkZXNrdG9wLm9yZy9kcm0tdGlwIGFuZCBidWlsZCBhcyBp bnN0cnVjdGVkIG9uIG91cgo+ID4gCUJ1aWxkIEd1aWRlLgo+ID4gCj4gPiA6LSkKPiAKPiBJJ2Qg cHJlZmVyIG5vdCB0byBydW4gZHJtLXRpcC4gSSdsbCB1cGRhdGUgdG8gMi42LjIwLXJjNSsgYW5k IHNlZSBpZgo+IGl0IHJlLWFwcGVhcnMgKGJ1dCBpdCB0YWtlcyBsb25nIHRpbWUgdG8gcmVwcm9k dWNlIDotKCkuCgpJZiB3ZSBjYW4gb3IgY2FuIG5vdCByZXByb2R1Y2UgdGhlIGlzc3VlIHdpdGgg ZHJtLXRpcCwgaXMgYSB2ZXJ5IHVzZWZ1bApkYXRhcG9pbnQgZm9yIHVzLiBJZiB3ZSBjYW4gbm90 IHJlcHJvZHVjZSwgaXQnbGwgYmUgcG9zc2libGUgdG8gYmlzZWN0CndoaWNoIGNvbW1pdCBmaXhl ZCBpdCwgYW5kIGJhY2twb3J0IHRoYXQuIE9uIHRoZSBvdGhlciBoYW5kLCBpZiBpdCdzCnN0aWxs IHJlcHJvZHVjaWJsZSwgd2Uga25vdyB3ZSdyZSBub3Qgc3BlbmRpbmcgdGltZSBvbiBzb21ldGhp bmcgd2UKYWxyZWFkeSBmaXhlZCwgYW5kIHRoZSBwcmlvcml0eSBnZXRzIGEgYnVtcC4KCj4gSWYg eW91IHRoaW5rIGl0IGlzIHVzZWZ1bCwgSSBjYW4gdHJ5IHRvIHVwZGF0ZSBteSBtYWNoaW5lIHRv Cj4gbGludXgtbmV4dC4KCmxpbnV4LW5leHQgaXMgY2xvc2VyIHRvIGRybS10aXAsIHNvIGl0J3Mg YmV0dGVyLiBEbyB5b3UgaGF2ZSBzb21lCnNwZWNpZmljIHJlYXNvbiBmb3Igbm90IHdhbnRpbmcg dG8gcnVuIGRybS10aXAgKGJ1dCBsaW51eC1uZXh0IGlzIHN0aWxsCm9rKT8KClJlZ2FyZHMsIEpv b25hcwoKPiAKPiBCZXN0IHJlZ2FyZHMsCj4gCQkJCQkJCQkJUGF2ZWwKPiAKLS0gCkpvb25hcyBM YWh0aW5lbgpPcGVuIFNvdXJjZSBHcmFwaGljcyBDZW50ZXIKSW50ZWwgQ29ycG9yYXRpb24KCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBt YWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3Rz LmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B0C2C04EB8 for ; Mon, 10 Dec 2018 08:28:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 690742081F for ; Mon, 10 Dec 2018 08:28:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 690742081F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726577AbeLJI2p (ORCPT ); Mon, 10 Dec 2018 03:28:45 -0500 Received: from mga07.intel.com ([134.134.136.100]:59686 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726050AbeLJI2o (ORCPT ); Mon, 10 Dec 2018 03:28:44 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Dec 2018 00:28:43 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,337,1539673200"; d="scan'208";a="124518134" Received: from jlahtine-mobl.ger.corp.intel.com (HELO jlahtine-mobl.fi.intel.com) ([10.237.66.147]) by fmsmga002.fm.intel.com with ESMTP; 10 Dec 2018 00:28:40 -0800 Message-ID: <64409c484c0601e7504ccc0cf8d211b3bb524ebe.camel@linux.intel.com> Subject: Re: v4.20-rc1: list_del corruption on thinkpad x220, graphics related? From: Joonas Lahtinen To: Pavel Machek Cc: bp@alien8.de, hpa@zytor.com, kernel list , mingo@redhat.com, tglx@linutronix.de, x86@kernel.org, jani.nikula@linux.intel.com, rodrigo.vivi@intel.com, intel-gfx@lists.freedesktop.org, chris@chris-wilson.co.uk Date: Mon, 10 Dec 2018 10:28:39 +0200 In-Reply-To: <20181208112447.GA9663@amd> References: <20181108175803.GA10785@amd> <154279919462.20217.14259089584802660420@jlahtine-desk.ger.corp.intel.com> <20181121115449.GA32455@amd> <154296105546.7930.1457928786446716358@jlahtine-desk.ger.corp.intel.com> <20181124152352.GA9548@amd> <20181208111346.GA5535@amd> <20181208112447.GA9663@amd> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5 (3.28.5-2.fc28) Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 2018-12-08 at 12:24 +0100, Pavel Machek wrote: > On Sat 2018-12-08 12:13:46, Pavel Machek wrote: > > Hi! > > > > > > > > There's one similar for nouveau in Bugzilla, but it seems like a genuine > > > > > > memory corruption (1 bit flipped): > > > > > > > > > > > > https://bugs.freedesktop.org/show_bug.cgi?id=84880 > > > > > > > > > > > > Any extra information would be of use :) > > > > > > > > > > > > Regards, Joonas > > > > > > > > > > > > PS. Could you open a bug to Bugzilla, it'll help to collect the > > > > > > information in one consolidated place: > > > > > > > > > > > > https://01.org/linuxgraphics/documentation/how-report-bugs > > > > > > > > > > I prefer email... certainly for bugs that can't be reproduced. > > > > > > > > By adding it to the Bugzilla it may be recognized by somebody else > > > > who is experiencing a similar issue. Internet points are not deducted > > > > for submitting bugs in good faith, even if they get closed as > > > > NOTABUG. > > > > Well, your documentation suggests you'll deduce my internet points: > > > > Before filing the bug, please try to reproduce your issue with the > > latest kernel. Use the latest drm-tip branch from > > http://cgit.freedesktop.org/drm-tip and build as instructed on our > > Build Guide. > > > > :-) > > I'd prefer not to run drm-tip. I'll update to 2.6.20-rc5+ and see if > it re-appears (but it takes long time to reproduce :-(). If we can or can not reproduce the issue with drm-tip, is a very useful datapoint for us. If we can not reproduce, it'll be possible to bisect which commit fixed it, and backport that. On the other hand, if it's still reproducible, we know we're not spending time on something we already fixed, and the priority gets a bump. > If you think it is useful, I can try to update my machine to > linux-next. linux-next is closer to drm-tip, so it's better. Do you have some specific reason for not wanting to run drm-tip (but linux-next is still ok)? Regards, Joonas > > Best regards, > Pavel > -- Joonas Lahtinen Open Source Graphics Center Intel Corporation