From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Steigerwald Subject: [REGRESSION] Linux 4.9-rc4: gfx glitches on Intel Sandybridge (was: Re: Linux 4.9-rc4) Date: Sun, 06 Nov 2016 15:48:36 +0100 Message-ID: <2656903.keIazZlQoI@merkaba> References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Linus Torvalds Cc: Intel Gfx Mailing List , Linux Kernel Mailing List List-Id: intel-gfx@lists.freedesktop.org SGkuCgpBbSBTYW1zdGFnLCA1LiBOb3ZlbWJlciAyMDE2LCAxNjo0NjozMyBDRVQgc2NocmllYiBM aW51cyBUb3J2YWxkczoKPiBTbyBpdCdzIG9uY2UgYWdhaW4gYSBTYXR1cmRheSBhZnRlcm5vb24g cmF0aGVyIHRoYW4gU3VuZGF5LCB0aGlzIHRpbWUKPiBiZWNhdXNlIEkgZmVsdCB0aGlzIHJjIHdh cyBhbHJlYWR5IGJpZyBlbm91Z2guCgpXaXRoIGtlcm5lbCA0LjktcmM0IEkgc2F3IGdmeCBjb3Jy dXB0aW9ucyBsaWtlCgpodHRwczovL21hcnRpbi1zdGVpZ2Vyd2FsZC5kZS90bXAvZGlzcGxheS1p c3N1ZXMtd2l0aC1rZXJuZWwtNC45LXJjNC5wbmcKCmluIEtvbnZlcnNhdGlvbiwgS29uc29sZSwg QWtyZWdhdG9yIGFuZCBvdGhlciBLREUvUXQgcmVsYXRlZCBhcHBzIHVwIHRvIHRoZSAKcG9pbnQg b2Ygbm90IGJlaW5nIGFibGUgdG8gdXNlIHRoZXNlIGFwcGxpY2F0aW9ucyBpbiBhIG1lYW5pbmdm dWwgd2F5LgoKSSBmaXJzdCB0aG91Z2h0IHRoaXMgbWlnaHQgYmUgZHVlIHRvIHVwZ3JhZGluZyBR dCBmcm9tIDUuNi4xIHRvIDUuNy4xLCB5ZXQgCmFmdGVyIHJlYm9vdGluZyBpbnRvIDQuOCBMaW51 eCBrZXJuZWwgYXMgcGFja2FnZWQgaW4gRGViaWFuIEkgc2F3IG5vIGdmeCAKZ2xpdGNoZXMgbGlr ZSB0aGF0IGFueW1vcmUuCgpBbnl0aGluZyBrbm93biBhYm91dCB0aGlzPwoKTWFjaGluZSBpcyBU aGlua1BhZCBUNTIwIHdpdGggU2FuZHlicmlkZ2UgZ3JhcGhpY3MuCgpLZXJuZWwgY29tcGlsZWQg d2l0aCBEZWJpYW4gZGlzdHJvIEdDQyA2IGJ1dCB1c2luZyBuby1waWUgbWFrZWZpbGUgcGF0Y2gu CgpOZXh0IHdlZWsgYW5kIHdlZWtlbmQgd2lsbCBiZSBwcmV0dHkgYnVzeSBhbmQgdGhpcyBpcyBh IHByb2R1Y3Rpb24gbWFjaGluZSwgc28gCmJpc2VjdGlvbiBvciBhbnkgb3RoZXIgdGltZS1jb25z dW1pbmcgd29yayBvbiB0aGlzIGlzIG91dCBvZiBxdWVzdGlvbiBmb3IgbWUuIApJIGNhbiBwcm92 aWRlIGFkZGl0aW9uYWwgZGV0YWlscyBpbiBjYXNlIHRoZXkgYXJlIGVhc3kgYW5kIHF1aWNrIGVu b3VnaCB0byAKb2J0YWluLgoKClN5c3RlbSBpbmZvcm1hdGlvbiAobm93IGJhY2sgb24gNC44IGtl cm5lbCk6CgojIHBob3Jvbml4LXRlc3Qtc3VpdGUgc3lzdGVtLWluZm8KClBob3Jvbml4IFRlc3Qg U3VpdGUgdjUuMi4xClN5c3RlbSBJbmZvcm1hdGlvbgoKSGFyZHdhcmU6ClByb2Nlc3NvcjogSW50 ZWwgQ29yZSBpNS0yNTIwTSBAIDMuMjBHSHogKDQgQ29yZXMpLCBNb3RoZXJib2FyZDogTEVOT1ZP IAo0MjQzM1dHLCBDaGlwc2V0OiBJbnRlbCAybmQgR2VuZXJhdGlvbiBDb3JlIEZhbWlseSBEUkFN LCBNZW1vcnk6IDE2Mzg0TUIsIApEaXNrOiAzMDBHQiBJTlRFTCBTU0RTQTJDVzMwICsgNDgwR0Ig Q3J1Y2lhbF9DVDQ4ME01MCwgR3JhcGhpY3M6IEludGVsIDJuZCAKR2VuZXJhdGlvbiBDb3JlIEZh bWlseSBJR1AsIEF1ZGlvOiBDb25leGFudCBDWDIwNTkwLCBNb25pdG9yOiBQMjRULTcgTEVELCAK TmV0d29yazogSW50ZWwgODI1NzlMTSBHaWdhYml0IENvbm5lY3Rpb24gKyBJbnRlbCBDZW50cmlu byBBZHZhbmNlZC1OIDYyMDUKClNvZnR3YXJlOgpPUzogRGViaWFuIHVuc3RhYmxlLCBLZXJuZWw6 IDQuOC4wLTEtYW1kNjQgKHg4Nl82NCksIERlc2t0b3A6IEtERSBGcmFtZXdvcmtzIAo1LCBEaXNw bGF5IFNlcnZlcjogWCBTZXJ2ZXIgMS4xOC40LCBEaXNwbGF5IERyaXZlcjogbW9kZXNldHRpbmcg MS4xOC40LCAKT3BlbkdMOiAzLjMgTWVzYSAxMi4wLjMsIENvbXBpbGVyOiBHQ0MgNi4yLjAgMjAx NjExMDMsIEZpbGUtU3lzdGVtOiBidHJmcywgClNjcmVlbiBSZXNvbHV0aW9uOiAzODQweDEwODAK CgojIGFwdC1zaG93LXZlcnNpb25zIHwgZWdyZXAgIihebGliZ2wxLW1lc2EtZHJpfF5saWJkcm0t aW50ZWwxfHhzZXJ2ZXIteG9yZy0KY29yZSkiIHwgZ3JlcCBhbWQ2NApsaWJkcm0taW50ZWwxOmFt ZDY0L3NpZCAyLjQuNzEtMSB1cHRvZGF0ZQpsaWJnbDEtbWVzYS1kcmk6YW1kNjQvc2lkIDEyLjAu My0zIHVwdG9kYXRlCnhzZXJ2ZXIteG9yZy1jb3JlOmFtZDY0L3NpZCAyOjEuMTguNC0yIHVwdG9k YXRlCgoKRXhjZXJwdCBvZiBnbHhpbmZvOgoKRXh0ZW5kZWQgcmVuZGVyZXIgaW5mbyAoR0xYX01F U0FfcXVlcnlfcmVuZGVyZXIpOgogICAgVmVuZG9yOiBJbnRlbCBPcGVuIFNvdXJjZSBUZWNobm9s b2d5IENlbnRlciAoMHg4MDg2KQogICAgRGV2aWNlOiBNZXNhIERSSSBJbnRlbChSKSBTYW5keWJy aWRnZSBNb2JpbGUgICgweDEyNikKICAgIFZlcnNpb246IDEyLjAuMwogICAgQWNjZWxlcmF0ZWQ6 IHllcwogICAgVmlkZW8gbWVtb3J5OiAxNTM2TUIKICAgIFVuaWZpZWQgbWVtb3J5OiB5ZXMKICAg IFByZWZlcnJlZCBwcm9maWxlOiBjb3JlICgweDEpCiAgICBNYXggY29yZSBwcm9maWxlIHZlcnNp b246IDMuMwogICAgTWF4IGNvbXBhdCBwcm9maWxlIHZlcnNpb246IDMuMAogICAgTWF4IEdMRVMx IHByb2ZpbGUgdmVyc2lvbjogMS4xCiAgICBNYXggR0xFU1syM10gcHJvZmlsZSB2ZXJzaW9uOiAz LjAKClgub3JnIHJ1bnMgd2l0aCBtb2Rlc2V0dGluZyBkcml2ZXIgKGRlZmF1bHQgd2FzIGNoYW5n ZWQgaW4gRGViaWFuIFNpZCBhIHdoaWxlIApiYWNrKS4KClRoYW5rcywKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJ bnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Au b3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752208AbcKFOyq (ORCPT ); Sun, 6 Nov 2016 09:54:46 -0500 Received: from mondschein.lichtvoll.de ([194.150.191.11]:54823 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751918AbcKFOyp (ORCPT ); Sun, 6 Nov 2016 09:54:45 -0500 X-Greylist: delayed 365 seconds by postgrey-1.27 at vger.kernel.org; Sun, 06 Nov 2016 09:54:45 EST From: Martin Steigerwald To: Linus Torvalds Cc: Linux Kernel Mailing List , Intel Gfx Mailing List Subject: [REGRESSION] Linux 4.9-rc4: gfx glitches on Intel Sandybridge (was: Re: Linux 4.9-rc4) Date: Sun, 06 Nov 2016 15:48:36 +0100 Message-ID: <2656903.keIazZlQoI@merkaba> User-Agent: KMail/5.2.3 (Linux/4.8.0-1-amd64; KDE/5.27.0; x86_64; ; ) In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi. Am Samstag, 5. November 2016, 16:46:33 CET schrieb Linus Torvalds: > So it's once again a Saturday afternoon rather than Sunday, this time > because I felt this rc was already big enough. With kernel 4.9-rc4 I saw gfx corruptions like https://martin-steigerwald.de/tmp/display-issues-with-kernel-4.9-rc4.png in Konversation, Konsole, Akregator and other KDE/Qt related apps up to the point of not being able to use these applications in a meaningful way. I first thought this might be due to upgrading Qt from 5.6.1 to 5.7.1, yet after rebooting into 4.8 Linux kernel as packaged in Debian I saw no gfx glitches like that anymore. Anything known about this? Machine is ThinkPad T520 with Sandybridge graphics. Kernel compiled with Debian distro GCC 6 but using no-pie makefile patch. Next week and weekend will be pretty busy and this is a production machine, so bisection or any other time-consuming work on this is out of question for me. I can provide additional details in case they are easy and quick enough to obtain. System information (now back on 4.8 kernel): # phoronix-test-suite system-info Phoronix Test Suite v5.2.1 System Information Hardware: Processor: Intel Core i5-2520M @ 3.20GHz (4 Cores), Motherboard: LENOVO 42433WG, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 16384MB, Disk: 300GB INTEL SSDSA2CW30 + 480GB Crucial_CT480M50, Graphics: Intel 2nd Generation Core Family IGP, Audio: Conexant CX20590, Monitor: P24T-7 LED, Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205 Software: OS: Debian unstable, Kernel: 4.8.0-1-amd64 (x86_64), Desktop: KDE Frameworks 5, Display Server: X Server 1.18.4, Display Driver: modesetting 1.18.4, OpenGL: 3.3 Mesa 12.0.3, Compiler: GCC 6.2.0 20161103, File-System: btrfs, Screen Resolution: 3840x1080 # apt-show-versions | egrep "(^libgl1-mesa-dri|^libdrm-intel1|xserver-xorg- core)" | grep amd64 libdrm-intel1:amd64/sid 2.4.71-1 uptodate libgl1-mesa-dri:amd64/sid 12.0.3-3 uptodate xserver-xorg-core:amd64/sid 2:1.18.4-2 uptodate Excerpt of glxinfo: Extended renderer info (GLX_MESA_query_renderer): Vendor: Intel Open Source Technology Center (0x8086) Device: Mesa DRI Intel(R) Sandybridge Mobile (0x126) Version: 12.0.3 Accelerated: yes Video memory: 1536MB Unified memory: yes Preferred profile: core (0x1) Max core profile version: 3.3 Max compat profile version: 3.0 Max GLES1 profile version: 1.1 Max GLES[23] profile version: 3.0 X.org runs with modesetting driver (default was changed in Debian Sid a while back). Thanks,