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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 72D17C4167D for ; Wed, 8 Nov 2023 00:11:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234790AbjKHALw (ORCPT ); Tue, 7 Nov 2023 19:11:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45912 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229844AbjKHALv (ORCPT ); Tue, 7 Nov 2023 19:11:51 -0500 Received: from mail-pj1-x102d.google.com (mail-pj1-x102d.google.com [IPv6:2607:f8b0:4864:20::102d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2DFF110E5 for ; Tue, 7 Nov 2023 16:11:49 -0800 (PST) Received: by mail-pj1-x102d.google.com with SMTP id 98e67ed59e1d1-2809b4d648bso5025341a91.2 for ; Tue, 07 Nov 2023 16:11:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1699402308; x=1700007108; darn=vger.kernel.org; h=content-transfer-encoding:subject:from:cc:to:content-language :user-agent:mime-version:date:message-id:from:to:cc:subject:date :message-id:reply-to; bh=o5FTMnIkfAnWQrINqJsE9vGOX5Y79juiKePAWCBp2xQ=; b=OAe3iG1uwVtJhZrYhNJylZ5P3AqQtBaJi2cBiuQuwALU5Vg1tc5A2BxZlYFHEwWIqk yY3Na/BIaFhBeM5SPAvAu3p5JU1h0Pik0Y1I6X8+sjinYZqFG5xi2VI8N/4fwuYZyIC3 xNSjtVVlBkeBPu6Up2VeC2pPk9roIVzabNRysmgjMoBBgMf1ZU7O+vhQ37qzIZH/itg9 yiluxFr6hijBI/bJm1Ev2yd8RtiVKNeZgr3LwdDbVcz29zhio45cFZVD3ST757teD40R 7OYdeY9OZiljB09OQ2JvbvnAXJHPmtJ7nltTtz8XXs6lsoDqpxKA/vs3WZcz5Zot6me3 I8yg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699402308; x=1700007108; h=content-transfer-encoding:subject:from:cc:to:content-language :user-agent:mime-version:date:message-id:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=o5FTMnIkfAnWQrINqJsE9vGOX5Y79juiKePAWCBp2xQ=; b=dW6HFqbyJo95BRuq9/B2kaYtjMsDCYyAfjj5uOH/tPbLZ1JpuyrtCaCtxyhY9R7m8t mUrMjXdgMNW546ddmE4HQFwTqPtembkRmiaS3OoIWko9uMZGmYsVNMVMfwmh/kQHqmqc L05iFhntShZYVhcJbLbvdj0QjUlajLV04tCYWBXthmCSOrhOcpFgrESTb913FuXqrMQj dCHU+qtleZOls7XcwBmKkv0Vm33VA/5scwzsGE1ijJeI8h17ouW4S2N89xRahWlyG5Cx HUHigqgLCLxIoeGp1NCN8xug+06dmFEYzC6ZUOL1eNJhXwZ2g2hrH5Wbdj1FEMhNY8n5 vTIA== X-Gm-Message-State: AOJu0YzY42RV0VpTgc+IEPgXZPGtCPhCG8Ppb2c9+hQzNmtn7mjFC8Fx Iqdpk4UWBGFf+3PMhcgnlUo+LxZHfn8= X-Google-Smtp-Source: AGHT+IFKm49M/VNzE67GA8NDQr1TupQFHjgD/NPr5R/pbLEg4jII8BqgTf96Oyl2ntsD/3uIsg4c6A== X-Received: by 2002:a17:90b:4a88:b0:280:1a19:6dd5 with SMTP id lp8-20020a17090b4a8800b002801a196dd5mr219806pjb.36.1699402308282; Tue, 07 Nov 2023 16:11:48 -0800 (PST) Received: from [192.168.0.106] ([103.131.18.64]) by smtp.gmail.com with ESMTPSA id w7-20020a17090aad4700b00280fcbbe774sm352767pjv.10.2023.11.07.16.11.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 07 Nov 2023 16:11:47 -0800 (PST) Message-ID: Date: Wed, 8 Nov 2023 07:11:36 +0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US To: Linux Kernel Mailing List , Linux Regressions , Linux DRI Development , Linux Virtualization Cc: Javier Martinez Canillas , Christian Hergert , Thomas Zimmermann , Gerd Hoffmann , David Airlie , Gurchetan Singh , Chia-I Wu , Maxime Ripard , Daniel Vetter , bluescreen_avenger@verizon.net From: Bagas Sanjaya Subject: Fwd: 01f05940a9a75e11a2be64993c44ad8dd06e6e26 causes Wayland servers to flicker in non-gl virtio QEMU cards Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, I notice a regression report on Bugzilla [1]. Quoting from it: > It seems that commit 01f05940a9a75e11a2be64993c44ad8dd06e6e26 introduced an issue impacting wlroots and Weston (possibly others) on QEMU with the virtio card. happens on QEMU, and it happens in virt-manager when I do NOT enable GL. (When GL is ENABLED it seems to be fine oddly) > > It introduces odd flickering, Weston's desktop shell flashes when a new window opens, wlroots also acts odd. > This is QEMU 8.0.4 > > I have narrowed it down to 01f05940a9a75e11a2be64993c44ad8dd06e6e26. Reverting the commit (it still reverts cleanly), and the flicking goes away on a rebuild and this is on Linux 6.6. See Bugzilla for the full thread. Anyway, I'm adding this regression to regzbot: #regzbot introduced: 01f05940a9a75e https://bugzilla.kernel.org/show_bug.cgi?id=218115 #regzbot title: fb damage clips property enablement causes Wayland non-GL flickering on QEMU Thanks. [1]: https://bugzilla.kernel.org/show_bug.cgi?id=218115 -- An old man doll... just what I always wanted! - Clara