Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp3321161yba; Sat, 18 May 2019 14:33:54 -0700 (PDT) X-Google-Smtp-Source: APXvYqxfzrFi8Qr2G+fi8bNzpft/GKjdFAWNkDfG5giM1uNr0wNZXMIawYmjvvCkzu+oUccJyFKZ X-Received: by 2002:aa7:910e:: with SMTP id 14mr40949026pfh.153.1558215234021; Sat, 18 May 2019 14:33:54 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1558215234; cv=none; d=google.com; s=arc-20160816; b=bxHATe18TcF6yp7zCVtCM4WZ3j/ry8sT1y3Se+oBDhukhJqh69YlozNh8cI4ZVPeB8 ZPrOpp3UzeEFi8keixcPrm2bs75+Ior6VTmZJg9+I7/0qfria2tBDywFctB/61NVhY1Q uVPmGnyFDqSJBqGa2egxoMjJo8W3ECajHsuCOCcUy/FGbEA/jXExUXMSsKrp1CdwPzfb p9puI9AxMJVSOcf/Cztr1yqwll2Tof9+0AMInB7bJgoYFhn1S7CV+bJt6Xaesn3rKMaU GJ/4TluhoJYmvDT9bhP9YeTu1MwvrA/7+NwRsDqh2BXwEEBKMmqwsNMuEHLpdQSqPi0J 3KfA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:user-agent:message-id :in-reply-to:date:references:subject:cc:to:from; bh=hrLVVUxbEDgI2knU795D7sJDl69MeVF3Ntwfslq0CZk=; b=KgOA/RK79r83MTed/VbALblc2QSP7Si2vqs/zGENl5cfO/HyvG+F1m7Ldxa4slzzbX ul9qVnqPQOqNwo0ss9wzYDTtsUPt37qaSBShsj/0K/db/PW859ihEPptNkAmB1ACXFxm dHr+icm4XdcMUZkJgL05l3Emxc1UoMp7zz2WBPKixEH6S2IaWKULZsauDsova5CDGqBK LaQe2OlFF1W4wMatkDeg2p8o1tipEudF5x9A9AKJKKi5k4fH4aZMKrkhIsRf6ce4snK8 nNK2OmtwgntZw5m6pGQNU2Hf1NhG9iV6imb8KuH7ymwRUxRTzfGDTFGj7ELQrqcWUY0N Vu5Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id i134si12841170pgd.318.2019.05.18.14.33.39; Sat, 18 May 2019 14:33:54 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729316AbfERVcC (ORCPT + 99 others); Sat, 18 May 2019 17:32:02 -0400 Received: from depni-mx.sinp.msu.ru ([213.131.7.21]:25 "EHLO depni-mx.sinp.msu.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728283AbfERVcB (ORCPT ); Sat, 18 May 2019 17:32:01 -0400 X-Greylist: delayed 556 seconds by postgrey-1.27 at vger.kernel.org; Sat, 18 May 2019 17:32:01 EDT Received: from spider (unknown [109.63.145.211]) by depni-mx.sinp.msu.ru (Postfix) with ESMTPSA id 46B581BF404; Sun, 19 May 2019 00:25:09 +0300 (MSK) From: Serge Belyshev To: Chris Wilson Cc: intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] drm/i915: Skip object locking around a no-op set-domain ioctl References: <20190321161908.8007-1-chris@chris-wilson.co.uk> <20190321161908.8007-2-chris@chris-wilson.co.uk> Date: Sun, 19 May 2019 00:22:43 +0300 In-Reply-To: <20190321161908.8007-2-chris@chris-wilson.co.uk> (Chris Wilson's message of "Thu, 21 Mar 2019 16:19:08 +0000") Message-ID: <878sv31mqk.fsf@depni.sinp.msu.ru> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi! This patch causes lockups in firefox. They appear like non-fatal hangs of the webpage contents, "fixable" with alt-tab or a background system load. I have verified that reverting the commit 754a254427 on top of current Linus tree fixes the problem.