From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 63A47C02198 for ; Fri, 7 Feb 2025 00:31:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:Mime-Version:References:In-Reply-To:Message-Id:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=+sartwbMLAd82CyHAx3E4ga7ShC8eqpPTOdDBwL+lAo=; b=QBYwmz1OtDJHA/7gfqh8rcOR+/ 5/epLedgWP1zGVN79ZPWLhIHq1UGDy7AukCGamArGhAlH4a7lIl1cozOBMdmjow7YFaXVX73Ot3Gt KF9VEumGhwggXnV65N8xV7+EQ/eRKv7uqnx1MU/aqYaxcJHaliGevPHnXqX1PTR2v1FaF2z8jIIxi 7kjISMZTOc3Jr/X2/ekvIbIMcnfZFzqE1NkGJkwpqE1BGGot8AoL9/C9dMwSze+9yuJz9waRKAFlN FP16wJXwaH+8eNLR+Y+SjStFM8n3SyZ6Ye3xJrTTdOEIgGwwV2Jz4U+mZbh3U0BiZL3tD58jUpcnZ 2ohY97nw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tgCGy-00000007srh-1brm; Fri, 07 Feb 2025 00:31:08 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tgCFa-00000007sYh-2opk; Fri, 07 Feb 2025 00:29:43 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id BFC255C60B6; Fri, 7 Feb 2025 00:29:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 09692C4CEDF; Fri, 7 Feb 2025 00:29:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1738888181; bh=394j8Z0b6091bH8cpo4/leUwPDluUyEIe29eznp9v/Y=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=cH6WfmxnF52p9Zequ1wu7UNwiFQG9Q9DFgHs3+QDdI63nHyM6sfGRF6ORytziBHBG 1svUtzspmlPno7QIYJtnR9zgKZPtG9f9VRRcOxc9zMOT1pNOcS0MkqJE4BtWRzysLo MVYoEEfJiWjb8IfK5tW9plqHYJnc6c1PwQKhrUMc= Date: Thu, 6 Feb 2025 16:29:39 -0800 From: Andrew Morton To: Mike Rapoport Cc: linux-kernel@vger.kernel.org, Alexander Graf , Andy Lutomirski , Anthony Yznaga , Arnd Bergmann , Ashish Kalra , Benjamin Herrenschmidt , Borislav Petkov , Catalin Marinas , Dave Hansen , David Woodhouse , Eric Biederman , Ingo Molnar , James Gowans , Jonathan Corbet , Krzysztof Kozlowski , Mark Rutland , Paolo Bonzini , Pasha Tatashin , "H. Peter Anvin" , Peter Zijlstra , Pratyush Yadav , Rob Herring , Rob Herring , Saravana Kannan , Stanislav Kinsburskii , Steven Rostedt , Thomas Gleixner , Tom Lendacky , Usama Arif , Will Deacon , devicetree@vger.kernel.org, kexec@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org Subject: Re: [PATCH v4 00/14] kexec: introduce Kexec HandOver (KHO) Message-Id: <20250206162939.a1f86fb835f1eeb7ed73ff1c@linux-foundation.org> In-Reply-To: <20250206132754.2596694-1-rppt@kernel.org> References: <20250206132754.2596694-1-rppt@kernel.org> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250206_162942_771858_033783F6 X-CRM114-Status: GOOD ( 15.82 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, 6 Feb 2025 15:27:40 +0200 Mike Rapoport wrote: > This a next version of Alex's "kexec: Allow preservation of ftrace buffers" > series (https://lore.kernel.org/all/20240117144704.602-1-graf@amazon.com), > just to make things simpler instead of ftrace we decided to preserve > "reserve_mem" regions. > > The patches are also available in git: > https://git.kernel.org/rppt/h/kho/v4 > > > Kexec today considers itself purely a boot loader: When we enter the new > kernel, any state the previous kernel left behind is irrelevant and the > new kernel reinitializes the system. I tossed this into mm.git for some testing and exposure. What merge path are you anticipating? Review activity seems pretty thin thus far?