From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754545AbeEUV5g (ORCPT ); Mon, 21 May 2018 17:57:36 -0400 Received: from shells.gnugeneration.com ([66.240.222.126]:56402 "EHLO shells.gnugeneration.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754104AbeEUV5S (ORCPT ); Mon, 21 May 2018 17:57:18 -0400 Date: Mon, 21 May 2018 14:57:18 -0700 From: Vito Caputo To: linux-kernel Subject: Re: [REGRESSION] v4.17-rc4: xgalaga fails to start in fullscreen (default) mode Message-ID: <20180521215718.7zwhhdanpnibp6la@shells.gnugeneration.com> References: <20180521195320.6stbpnebgjowxwjp@shells.gnugeneration.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180521195320.6stbpnebgjowxwjp@shells.gnugeneration.com> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 21, 2018 at 12:53:20PM -0700, Vito Caputo wrote: > Hello all, > > 4.17-rc4 (my latest kernel ATM) consistently fails to start xgalaga > without -window. I will try find time to build the latest rc this > evening. > > > ~$ xgalaga > > X Error of failed request: BadValue (integer parameter out of range for operation) > > Major opcode of failed request: 152 (XFree86-VidModeExtension) > > Minor opcode of failed request: 10 (XF86VidModeSwitchToMode) > > Value in failed request: 0x120004e > > Serial number of failed request: 199 > > Current serial number in output stream: 203 > > Haven't dug into this much yet, only did a perfunctory check by booting into a > few older kernels (4.11, 4.12, 4.16) and the problem is absent on all of them. > It appears to be a 4.17-specific regression right now. > > Also observed, though this is surely a different regression, the game > ran like molasses with -window, showing some prominent kworkers in top: > > 692 vc 20 0 312852 45884 20556 R 32.0 1.2 0:08.69 Xorg > 102 root 20 0 0 0 0 R 11.2 0.0 0:01.43 kworker/1:3 > 94 root 20 0 0 0 0 I 8.9 0.0 0:00.83 kworker/0:2 > 696 vc 20 0 39948 4124 2912 S 1.0 0.1 0:05.57 vwm > 902 vc 30 10 46372 4144 3500 S 0.7 0.1 0:00.08 xgalaga > 891 vc 30 10 44924 3868 3156 R 0.3 0.1 0:00.09 top > 903 vc 30 10 4180 1184 1100 S 0.3 0.0 0:00.01 xgal.sndsrv.oss > > The windowed performance issue was observed on the older kernels tested > as well, though 4.11 felt better and didn't have the busy kworkers. > > I have not attempted to play xgalaga for ages, but it used to be perfectly > playable on this machine in windowed mode when I last did. > > Machine is the venerable Thinkpad X61s, 1.8Ghz, Debian 9, config attached. > Just built and booted v4.17-rc6, still broken.