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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 DD554C56202 for ; Fri, 20 Nov 2020 13:41:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6B98622272 for ; Fri, 20 Nov 2020 13:41:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728359AbgKTNlp (ORCPT ); Fri, 20 Nov 2020 08:41:45 -0500 Received: from mx2.suse.de ([195.135.220.15]:48278 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728316AbgKTNlo (ORCPT ); Fri, 20 Nov 2020 08:41:44 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id C44CFAC23; Fri, 20 Nov 2020 13:41:42 +0000 (UTC) To: David Laight , Linus Torvalds Cc: Daniel Vetter , Linux Kernel Mailing List , dri-devel , "Huang, Ray" , Dave Airlie , =?UTF-8?Q?Christian_K=c3=b6nig?= References: <2c474745ae884de3b4ecb8abe2152bfd@AcuMS.aculab.com> From: Thomas Zimmermann Subject: Re: Linux 5.10-rc4; graphics alignment Message-ID: <7d42ee6b-d72b-9f4d-21fe-4f5981eb425e@suse.de> Date: Fri, 20 Nov 2020 14:41:42 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="JqgKexFhY0RRE2n6aBzAkOiodWThZTYoE" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --JqgKexFhY0RRE2n6aBzAkOiodWThZTYoE Content-Type: multipart/mixed; boundary="ff4davbZMVG36vuLAxVaaySd19NzjtkkZ"; protected-headers="v1" From: Thomas Zimmermann To: David Laight , Linus Torvalds Cc: Daniel Vetter , Linux Kernel Mailing List , dri-devel , "Huang, Ray" , Dave Airlie , =?UTF-8?Q?Christian_K=c3=b6nig?= Message-ID: <7d42ee6b-d72b-9f4d-21fe-4f5981eb425e@suse.de> Subject: Re: Linux 5.10-rc4; graphics alignment References: <2c474745ae884de3b4ecb8abe2152bfd@AcuMS.aculab.com> In-Reply-To: --ff4davbZMVG36vuLAxVaaySd19NzjtkkZ Content-Type: multipart/mixed; boundary="------------19390179BCA297FF6D9BB33A" Content-Language: en-US This is a multi-part message in MIME format. --------------19390179BCA297FF6D9BB33A Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Hi Am 20.11.20 um 13:53 schrieb David Laight: > From: Thomas Zimmermann >> Sent: 20 November 2020 12:30 >> >> Am 20.11.20 um 12:45 schrieb David Laight: >>> From: Thomas Zimmermann >>>> Sent: 20 November 2020 11:27 >>> ... >>>>>> You can use drm-tip for testing, where many of the DRM patches go = through. >>>>>> >>>>>> https://cgit.freedesktop.org/drm/drm-tip/ >>>>>> >>>>>> It's fairly up-to-date. >>>>> >>>>> Any idea of tags either side of the 5.10 merge? >>>> >>>> The final commit before v5.9 appears to be >>>> >>>> Fixes: 33c8256b3bcc ("drm/amd/display: Change ABM config init i= nterface") >>>> >>>> I'd try this as a good commit. For the bad commit, just try HEAD. >>> >>> HEAD off that tree works. >>> Colours ok and no stack backtrace. >>> >>> Ideas?? >> >> The good news is that it's been fixed. All you have to do is wait for >> the fix to hit upstream. >> >> Did you try the patch that Dave linked? >=20 > That patch makes no difference to my system. > The condition is false so it doesn't corrupt the flags. > (I printed the values to see.) I see, so it's probably something else that has been fixed in drm-tip.=20 It's likely that at least one commit in drm-tip is also broken. I'd try=20 to find one of these. One idea is to go through the commits that went=20 into the related files. Maybe go back to the HEAD of drm-tip and try=20 something like git log --oneline -- drivers/gpu/drm/ast/=20 drivers/gpu/drm/drm_gem_vram_helper.c drivers/gpu/drm/ttm/ That lists recent ast and memory-management commits. One of them might=20 be broken and can serve an a starting point for a bisect. I did a diff from v5.10-rc4 to drm-tip to look for suspicious changes.=20 Some candidates are 8e3784dfef8a ("drm/ast: Reload gamma LUT after changing primary=20 plane's color format") 2b8283ff1a60 ("drm/vram_helper: implement a ttm move callback.") 6a6e5988a265 ("drm/ttm: replace last move_notify with delete_mem_notif= y") I'd test them against their parent commits to see if anything changes. Thanks for all your efforts! Best regards Thomas >=20 > David >=20 > - > Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, M= K1 1PT, UK > Registration No: 1397386 (Wales) >=20 --=20 Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 N=C3=BCrnberg, Germany (HRB 36809, AG N=C3=BCrnberg) Gesch=C3=A4ftsf=C3=BChrer: Felix Imend=C3=B6rffer --------------19390179BCA297FF6D9BB33A Content-Type: application/pgp-keys; name="OpenPGP_0x680DC11D530B7A23.asc" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="OpenPGP_0x680DC11D530B7A23.asc" -----BEGIN PGP PUBLIC KEY BLOCK----- xsBNBFs50uABCADEHPidWt974CaxBVbrIBwqcq/WURinJ3+2WlIrKWspiP83vfZKaXhFYsdgX= H47 fDVbPPj+d6tQrw5lPQCyqjwrCPYnq3WlIBnGPJ4/jreTL6V+qfKRDlGLWFjZcsrPJGE0BeB5B= bqP 5erN1qylK9i3gPoQjXGhpBpQYwRrEyQyjuvk+Ev0K1Jc5tVDeJAuau3TGNgah4YchdHm3bkPj= z9E ErV85RwvImQ1dptvx6s7xzwXTgGAsaYZsL8WCwDaTuqFa1d1jjlaxg6+tZsB9GluwvIhSezPg= nEm 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aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 2A1ADC5519F for ; Fri, 20 Nov 2020 13:41:47 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A4BE8222BA for ; Fri, 20 Nov 2020 13:41:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A4BE8222BA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 98A426E8B6; Fri, 20 Nov 2020 13:41:45 +0000 (UTC) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 36B4E6E8B6 for ; Fri, 20 Nov 2020 13:41:44 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id C44CFAC23; Fri, 20 Nov 2020 13:41:42 +0000 (UTC) To: David Laight , Linus Torvalds References: <2c474745ae884de3b4ecb8abe2152bfd@AcuMS.aculab.com> From: Thomas Zimmermann Subject: Re: Linux 5.10-rc4; graphics alignment Message-ID: <7d42ee6b-d72b-9f4d-21fe-4f5981eb425e@suse.de> Date: Fri, 20 Nov 2020 14:41:42 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 MIME-Version: 1.0 In-Reply-To: X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Daniel Vetter , Linux Kernel Mailing List , dri-devel , "Huang, Ray" , Dave Airlie , =?UTF-8?Q?Christian_K=c3=b6nig?= Content-Type: multipart/mixed; boundary="===============0902178044==" Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============0902178044== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="JqgKexFhY0RRE2n6aBzAkOiodWThZTYoE" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --JqgKexFhY0RRE2n6aBzAkOiodWThZTYoE Content-Type: multipart/mixed; boundary="ff4davbZMVG36vuLAxVaaySd19NzjtkkZ"; protected-headers="v1" From: Thomas Zimmermann To: David Laight , Linus Torvalds Cc: Daniel Vetter , Linux Kernel Mailing List , dri-devel , "Huang, Ray" , Dave Airlie , =?UTF-8?Q?Christian_K=c3=b6nig?= Message-ID: <7d42ee6b-d72b-9f4d-21fe-4f5981eb425e@suse.de> Subject: Re: Linux 5.10-rc4; graphics alignment References: <2c474745ae884de3b4ecb8abe2152bfd@AcuMS.aculab.com> In-Reply-To: --ff4davbZMVG36vuLAxVaaySd19NzjtkkZ Content-Type: multipart/mixed; boundary="------------19390179BCA297FF6D9BB33A" Content-Language: en-US This is a multi-part message in MIME format. --------------19390179BCA297FF6D9BB33A Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Hi Am 20.11.20 um 13:53 schrieb David Laight: > From: Thomas Zimmermann >> Sent: 20 November 2020 12:30 >> >> Am 20.11.20 um 12:45 schrieb David Laight: >>> From: Thomas Zimmermann >>>> Sent: 20 November 2020 11:27 >>> ... >>>>>> You can use drm-tip for testing, where many of the DRM patches go = through. >>>>>> >>>>>> https://cgit.freedesktop.org/drm/drm-tip/ >>>>>> >>>>>> It's fairly up-to-date. >>>>> >>>>> Any idea of tags either side of the 5.10 merge? >>>> >>>> The final commit before v5.9 appears to be >>>> >>>> Fixes: 33c8256b3bcc ("drm/amd/display: Change ABM config init i= nterface") >>>> >>>> I'd try this as a good commit. For the bad commit, just try HEAD. >>> >>> HEAD off that tree works. >>> Colours ok and no stack backtrace. >>> >>> Ideas?? >> >> The good news is that it's been fixed. All you have to do is wait for >> the fix to hit upstream. >> >> Did you try the patch that Dave linked? >=20 > That patch makes no difference to my system. > The condition is false so it doesn't corrupt the flags. > (I printed the values to see.) I see, so it's probably something else that has been fixed in drm-tip.=20 It's likely that at least one commit in drm-tip is also broken. I'd try=20 to find one of these. One idea is to go through the commits that went=20 into the related files. Maybe go back to the HEAD of drm-tip and try=20 something like git log --oneline -- drivers/gpu/drm/ast/=20 drivers/gpu/drm/drm_gem_vram_helper.c drivers/gpu/drm/ttm/ That lists recent ast and memory-management commits. One of them might=20 be broken and can serve an a starting point for a bisect. I did a diff from v5.10-rc4 to drm-tip to look for suspicious changes.=20 Some candidates are 8e3784dfef8a ("drm/ast: Reload gamma LUT after changing primary=20 plane's color format") 2b8283ff1a60 ("drm/vram_helper: implement a ttm move callback.") 6a6e5988a265 ("drm/ttm: replace last move_notify with delete_mem_notif= y") I'd test them against their parent commits to see if anything changes. Thanks for all your efforts! Best regards Thomas >=20 > David >=20 > - > Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, M= K1 1PT, UK > Registration No: 1397386 (Wales) >=20 --=20 Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 N=C3=BCrnberg, Germany (HRB 36809, AG N=C3=BCrnberg) Gesch=C3=A4ftsf=C3=BChrer: Felix Imend=C3=B6rffer --------------19390179BCA297FF6D9BB33A Content-Type: application/pgp-keys; name="OpenPGP_0x680DC11D530B7A23.asc" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="OpenPGP_0x680DC11D530B7A23.asc" -----BEGIN PGP PUBLIC KEY BLOCK----- xsBNBFs50uABCADEHPidWt974CaxBVbrIBwqcq/WURinJ3+2WlIrKWspiP83vfZKaXhFYsdgX= H47 fDVbPPj+d6tQrw5lPQCyqjwrCPYnq3WlIBnGPJ4/jreTL6V+qfKRDlGLWFjZcsrPJGE0BeB5B= bqP 5erN1qylK9i3gPoQjXGhpBpQYwRrEyQyjuvk+Ev0K1Jc5tVDeJAuau3TGNgah4YchdHm3bkPj= z9E ErV85RwvImQ1dptvx6s7xzwXTgGAsaYZsL8WCwDaTuqFa1d1jjlaxg6+tZsB9GluwvIhSezPg= nEm 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_______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel --===============0902178044==--