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=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,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 F0CA7C388F9 for ; Sat, 21 Nov 2020 11:34:56 +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 BB0D020B1F for ; Sat, 21 Nov 2020 11:34:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BB0D020B1F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=ACULAB.COM 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 C6F446E9A1; Sat, 21 Nov 2020 11:34:32 +0000 (UTC) Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [207.82.80.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id C42026E8AB for ; Fri, 20 Nov 2020 10:51:27 +0000 (UTC) Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-234-k48j_AcUP4appSBg89PJ6g-1; Fri, 20 Nov 2020 10:51:24 +0000 X-MC-Unique: k48j_AcUP4appSBg89PJ6g-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Fri, 20 Nov 2020 10:51:23 +0000 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Fri, 20 Nov 2020 10:51:23 +0000 From: David Laight To: 'Thomas Zimmermann' , Linus Torvalds Subject: RE: Linux 5.10-rc4; graphics alignment Thread-Topic: Linux 5.10-rc4; graphics alignment Thread-Index: Ada/IUdqcU2WLz13TDyBa91ssXd9zQABIUYAAAEibgA= Date: Fri, 20 Nov 2020 10:51:23 +0000 Message-ID: References: <2c474745ae884de3b4ecb8abe2152bfd@AcuMS.aculab.com> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US X-Mailman-Approved-At: Sat, 21 Nov 2020 11:34:30 +0000 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?B?Q2hyaXN0aWFuIEvDtm5pZw==?= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Thomas Zimmermann > Sent: 20 November 2020 10:14 ... > > Is there any way to bisect through the parts of the > > drm merge patch into v5.10-rc1 ? > > > > That ought to be quicker (and less error prone) than > > the bisect builds I was doing. > > > > Note that the stack 'splat' is due to a later change. > > It is separate from the broken pixel alignment. > > > > I actually saw the vga text go 'funny' while the boot > > was outputting all the [OK] messages (from systemd?) > > before the graphic login stole tty1 (bloody stupid > > to use tty1). > > > > I don't need to use the failing system today, I'll > > have another go at isolating the failure. > > 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? > I have two systems with AST chips and neither shows any of the symptoms > you describe; nor do we have such reports about drivers that use a > similar stack (hibmc, bochs). Could you provide the output of > > dmesg | grep drm [ 2.112303] fb0: switching to astdrmfb from EFI VGA [ 2.120222] ast 0000:02:00.0: [drm] Using P2A bridge for configuration [ 2.120233] ast 0000:02:00.0: [drm] AST 2400 detected [ 2.120247] ast 0000:02:00.0: [drm] Analog VGA only [ 2.120257] ast 0000:02:00.0: [drm] dram MCLK=408 Mhz type=1 bus_width=16 [ 2.121121] [drm] Initialized ast 0.1.0 20120228 for 0000:02:00.0 on minor 0 [ 2.125838] fbcon: astdrmfb (fb0) is primary device [ 2.152179] ast 0000:02:00.0: [drm] fb0: astdrmfb frame buffer device [ 6.061034] systemd[1]: Condition check resulted in Load Kernel Module drm being skipped. The output is the same for both good and bad kernels. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales) _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel