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Wysocki" , Boris Ostrovsky , Nicholas Piggin , Michael Ellerman , Eric Biederman , Dave Hansen , Jaroslav Kysela , Joel Fernandes , Liam Girdwood , Peter Ujfalusi , Pavel Machek , Pierre-Louis Bossart , Kai Vehmanen , Steven Rostedt , "K. Y. Srinivasan" , Ingo Molnar , Bjorn Helgaas , Dexuan Cui , Takashi Iwai , "H. Peter Anvin" , Bard Liao , Haiyang Zhang , Wei Liu , Thomas Gleixner , Borislav Petkov , x86@kernel.org Cc: kexec@lists.infradead.org, alsa-devel@alsa-project.org, stable@vger.kernel.org, sound-open-firmware@alsa-project.org, linuxppc-dev@lists.ozlabs.org, linux-hyperv@vger.kernel.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, xen-devel@lists.xenproject.org References: <20221127-snd-freeze-v8-0-3bc02d09f2ce@chromium.org> <20221127-snd-freeze-v8-3-3bc02d09f2ce@chromium.org> Content-Language: en-US From: Oliver Neukum In-Reply-To: <20221127-snd-freeze-v8-3-3bc02d09f2ce@chromium.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: FR3P281CA0014.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:1d::7) To VI1PR04MB7104.eurprd04.prod.outlook.com (2603:10a6:800:126::9) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: VI1PR04MB7104:EE_|AM9PR04MB8455:EE_ X-MS-Office365-Filtering-Correlation-Id: 29c366d0-5774-4a3b-97b7-08dad3979d37 X-LD-Processed: f7a17af6-1c5c-4a36-aa8b-f5be247aa4ba,ExtFwd X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Hi, I am afraid I have to state that this approach is bad in every case, not just this corner case. It basically means that user space can stall the kernel for an arbitrary amount of time. And we cannot have that. Regards Oliver