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Mon, 10 Mar 2025 12:22:13 +0100 From: Bert Karwatzki To: Balbir Singh Cc: Bert Karwatzki , Ingo Molnar , Kees Cook , Bjorn Helgaas , Linus Torvalds , Peter Zijlstra , Andy Lutomirski , linux-kernel@vger.kernel.org Subject: commit 7ffb791423c7 breaks steam game Date: Mon, 10 Mar 2025 12:22:04 +0100 Message-ID: <20250310112206.4168-1-spasswolf@web.de> X-Mailer: git-send-email 2.47.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:vehwg9gJojuWPO1SveeN/8l49i5hQLSVYog1Qpj/6fE9jXH8rPe 3NyScvgVAnvIpqQ/5FtElR18N6rHKPGLpvnTLhQg7cNBZJDdt7GdIpKY+uqK0hiDA4FlYS6 zLvUN/wOLCYAYCetp5OqeBQ09sncrwP8rRXzp8CpuJhyUwbuJ6+iLqwznfAnuPvF4yV/xYi O836KgS13szEt/ujXa5/w== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:kTiLBe98hUE=;RG+FAN0WhJmYsuEW3XID1qt5Z+x l2E1AVfxrvMP48deVmmXAGRDsuJXOvOCBIJFfr/yV8LKO4XiGynnSM1kPMsY3dJbT8BLy32rl G4O5mEuWZ7VGOew/niF/YncEk+qRDdOlJwSlb+kalopWdxfK1lw+FKRxpZ0ISj/eZPICDXknw TW8KEwHFU7o22bYwqLSgYv0YQ1XRS6/SM5BfjxMh8FuxGdkMhGLMSCfCwrCj70NSDmrOuHhA1 YJ44MUlEir1a3nj4Dq2AVLogBvEAXTbfc5sthYX4F6fLD9erjdoacgp7INtaFe2yKBPQ8wrcL JOyhY7ZZkO99yVx3mgEHEWglXE3GpE5AnWdVFiLDmIVTHCN8fqNJZL8gLGt/n0MGbUg3gOnvG j7by60Ytkcon/+k6dEc5lsR84CbuDee7quF0hBqchWu+AKqWhgt3JOGU3vK1GQARhwU8iQvxB UGjSZIDr3/BN54Hk2QkDp5uHaq0W//07sb+/LYDYyW39XnyJcmHjQk27Nmln8eWVCPkbpeYtO mMkBO/6yyf+qI0l42mNqQo5vTZdLEAMGVHwNyJp1CV30bKSPc6+EGhxxtIr/Mic9RyrEALPII B0ANCmA2KzUSN7pADKxBHU/bZ6HLVk+fTMxXtLyoV8XN6pvKzerarxKRfRsRKPYlNaqOx6j5I GPZZIDWCqghMSGGakVloWgzn4Ga41bBmI3MD29x6g93cDMBQ2vXlZ25Kl/f6Y/Zr4Dlg0y61F j8+y9gZSf1QVtayKJCuj5HDrElDx+hyy8u15h0tnZRxT/Vvd380Arx253CeUHTkVfVBVbLMjG +sZvim3uVH3PI0FHOSKBsAzj0j++7CFNC6rt93955G9MFph+HKYDzySKm8stpNRC7Xvx3L3pO SGwUBYQ0bAPq4O63m19zbVfPCsBEhY/hZm9pu/VeQCC2mq7r4BaAHZD/CsNNXuwo+ZvLJZuBl 8YaaEpsbQ+kZKhP6OzIvwccnsfhnReOwL7NbzkpKvUIE+J6BZ959Jh1yZEVtDH8JiwOCc0eGR enNXkEYGRSeF+XOkeyGmPXSvn1/fPOKEvdQk7G8EcOzEqBPuZoiVujB+WJ0r1LMXJOujHKyl3 81tXHm2TeUhNj0dRHqXQ050yweX2g+H3kTQEZE8reXD8xUQ2mWnchwy1oT9x9bf1YWQtoIEkI x7KiWvYYbXeMt2TBDG2pY0TM+wvw2pXlhyZRulb1c8kcIauWTVnbw1OJ9m2zzmY1SN0UBJvLk ownQtmMv6ZKkQrrjSWNjhHOooCtd/+h1QTOWr1NHoqTrIbiUV5AKpzJGc7NDY1nQGFdkorVeg ebMUftkqwNrogLyysIbpRRm/aDToFqEsctbhgguq/QgrJRCG2ToJCHqadaPXzXg5ZraX/OXur 3jFNpEKOsaW6Cqj0ytzv1vRbAZhLR05UKiqD2OpzqdMk61I7qUaD1UuUjj Using linux next-20250307 to play the game stellaris via steam I noticed that loading the game gets sluggish with the progress bar getting stuck at 100%. In this situation mouse and keyboard inputs don't work properly anymore. Switching to a VT and killing stellaris somewhat fixes the situation though in one instance the touchpad did not work after that. I bisected this between v6.14-rc5 and next-20250307 and got this as the first bad commit: 7ffb791423c7c518269a9aad35039ef824a40adb is the first bad commit commit 7ffb791423c7c518269a9aad35039ef824a40adb (HEAD) Author: Balbir Singh Date: Fri Feb 7 10:42:34 2025 +1100 x86/kaslr: Reduce KASLR entropy on most x86 systems Reverting commit 7ffb791423c7 in next-20250307 fixes the issue for me. The OS is debian sid (last updated 20250309) and this is the hardware is an MSI Alpha 15 Laptop: $ lspci 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne Root Complex 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne IOMMU 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge 00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge 00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge 00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge 00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge 00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP Bridge to Bus 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 51) 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51) 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 0 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 1 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 2 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 3 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 4 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 5 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 6 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Cezanne Data Fabric; Function 7 01:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 XL Upstream Port of PCI Express Switch (rev c3) 02:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 XL Downstream Port of PCI Express Switch 03:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Navi 23 [Radeon RX 6600/6600 XT/6600M] (rev c3) 03:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Navi 21/23 HDMI/DP Audio Controller 04:00.0 Network controller: MEDIATEK Corp. MT7921K (RZ608) Wi-Fi 6E 80MHz 05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller (rev 15) 06:00.0 Non-Volatile memory controller: Kingston Technology Company, Inc. KC3000/FURY Renegade NVMe SSD [E18] (rev 01) 07:00.0 Non-Volatile memory controller: Micron/Crucial Technology P1 NVMe PCIe SSD[Frampton] (rev 03) 08:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cezanne [Radeon Vega Series / Radeon Vega Mobile Series] (rev c5) 08:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Renoir Radeon High Definition Audio Controller 08:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor 08:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB 3.1 08:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB 3.1 08:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD] ACP/ACP3X/ACP6x Audio Coprocessor (rev 01) 08:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h/1ah HD Audio Controller 08:00.7 Signal processing controller: Advanced Micro Devices, Inc. [AMD] Sensor Fusion Hub Bert Karwatzki