From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AE77969300; Thu, 8 Feb 2024 13:39:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707399598; cv=none; b=EUeFYaJmWyvarFqWHbfBqxxsZ274qHdpiURAsGq9iHDHhnhg6e7SNs9nJgPcc5TqL4mAd78rNAn7rNefEsAz/CGuyUDbaJHAxzASpQbivl/VXd1w1xzXo7iuoV6WEcTjhOG1ZvcNrvI1z2vlAWMdILl6BpcNr0hF3Y49UrmxjuQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707399598; c=relaxed/simple; bh=GAQvZFPGVkGIRHn+TfnYrCD/18BFSOgL0xVQMh03f7Q=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=F/vCsIPUHS/j5Bctc/V/xavVIjlOXg3Tt37h4mTgzC4TUVkgMqGfxDakA+eZH5GkDXcs08TpojCm+LJknxQ3ry7dXXOKrUnOHtIyzltUZ1Dtq84FfqFQfy2ISDbfY7W/63vVOd5BC74pJcUQb2tGUm1QAhfiV/ppoKl060N0BWE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=iJke3Ccm; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=Y2wIRbRb; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="iJke3Ccm"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="Y2wIRbRb" From: John Ogness DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1707399594; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=JHDIQzkGG+MPwKNeQEZx8vGwHDj28JgeiF1oIt02Zz8=; b=iJke3CcmBJMtWum8U7gZsj4lHvZ7Z1HEwpCpjS5J6VZV/416zRHLSESuKSLlVApH9xlhXh w0Ak3425v8+HR6ct9inEZeoa9HRszriudVsxIbNId8Jo1N+rwNXidLQADuIVgvzCdPlNts bJqc+71IT7NGwdGDuaN5N6cDDzgLwAgDpjNC6S4orLxCQRQ3dLDQGyhfmls6bDSDITHz/V 1Awd/WgChIrUxjjQAe7tnOnTBuKXuf3EuFrK74GzPTEWqo7zgeI1Z6imUuHCcWUry/YEig HY/iS6bzhyp09nsQGFL8lqm98jQW444z/4rncqLfVDBPxh7tc0p83Ig3AyV8TQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1707399594; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=JHDIQzkGG+MPwKNeQEZx8vGwHDj28JgeiF1oIt02Zz8=; b=Y2wIRbRbEDvbBO2IyXfdji8e+QXRZPCsQg1+nF7w/n2BZeNn3qvKdVdXSv9kiDq+XqMcZb NY7+ruHKvCgQJhBA== To: Greg KH , Petr Mladek Cc: Sreenath Vijayan , corbet@lwn.net, jirislaby@kernel.org, rdunlap@infradead.org, rostedt@goodmis.org, senozhatsky@chromium.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, taichi.shimoyashiki@sony.com, daniel.palmer@sony.com, anandakumar.balasubramaniam@sony.com Subject: Re: [PATCH v4 2/2] tty/sysrq: Dump printk ring buffer messages via sysrq In-Reply-To: <2024020845-antiquely-faculty-407d@gregkh> References: <2024020845-antiquely-faculty-407d@gregkh> Date: Thu, 08 Feb 2024 14:45:43 +0106 Message-ID: <87v86zt6qo.fsf@jogness.linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On 2024-02-08, Greg KH wrote: > I just remembered all the rt-changes coming down the pipe for > consoles/printk, is this going to mess with that? It will not mess with the changes because we will continue to support the legacy consoles anyway. > So when this option fails when people need it the most, perhaps it's not > worth adding? When else would people want to use it? The feature could be massively improved once the rt-changes (atomic consoles) become available. Petr also brought up valid points about this feature (such as the loglevel) that should be considered. We should clarify what exactly we want this feature to do. The actual implementation is the easy part. John