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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id EEDA9C10F1A for ; Thu, 9 May 2024 20:26:10 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 4BB5C6B007B; Thu, 9 May 2024 16:26:10 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 444AA6B0088; Thu, 9 May 2024 16:26:10 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2BDAA6B0089; Thu, 9 May 2024 16:26:10 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 0E39B6B007B for ; Thu, 9 May 2024 16:26:10 -0400 (EDT) Received: from smtpin03.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 695AC12028F for ; Thu, 9 May 2024 20:26:09 +0000 (UTC) X-FDA: 82099989258.03.4B7375C Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by imf12.hostedemail.com (Postfix) with ESMTP id 5BE0740018 for ; Thu, 9 May 2024 20:26:06 +0000 (UTC) Authentication-Results: imf12.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=EAU+yNGu; spf=pass (imf12.hostedemail.com: domain of rppt@kernel.org designates 145.40.73.55 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1715286366; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=tTAzH7C2Z75oVRi1f3k2i83OravKBp/Tefrgs246Fkg=; b=biLSSUNySK4Oe0zpUOcbAddWNEcSZjSmV38gjB36dPyEGzbUcTa8aAcSPK3FIgp9szT8aO g1KIwn1DWOfFNwQzu+x3PeBxXnMCyD6cgyWnO/bOI1l9FddmQv7hHQDx2LQ1IbG+tPlsHb v3Fot1WwUvBuQKBEHvvjNRPGQjObeEQ= ARC-Authentication-Results: i=1; imf12.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=EAU+yNGu; spf=pass (imf12.hostedemail.com: domain of rppt@kernel.org designates 145.40.73.55 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1715286366; a=rsa-sha256; cv=none; b=7HEDB/HUpj63CeeOmoU+asIF+XUwwHRTz5eSqChSrJxQ3sAVc6zD2tswJAyVlfXcjm/Dtr zm5nrWu3NA4R/0sKTTwlNM0pegS1wMR9emJjshBMC9sixuDLoOYZavigaJ0WeYs2Mw8/F8 yj9p3Ob5+uExa/QpOncwb7m6FA0UvN4= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 39568CE1A52; Thu, 9 May 2024 20:26:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2B443C116B1; Thu, 9 May 2024 20:25:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715286359; bh=hWSyULYaOsDE5daF7aXr2kaFDHZCM6PG5rvsb8AziAs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=EAU+yNGu3oWaap3Iwie57YsH+TQekgKrvNRBDSKtf2+pPoaag2og5tdmfS/60jcSB Yrt3PHyBBnPHaOXRYAhM6MtNn9VT3q7dlbATGg5UgpFkX6cXFvyTPKKBFLdSGiZ3Xa Kr3/umv3oMuz78Jo9joI2e5RV0MwQw5ufqpWZvQ/kYPgcZyPg3kaTpHsE6UPujRITK uqNfg3vXJVxZjJvFVpwuUcsA51tPMoIzlzvqfuYI5PwE5yRwSDO+Qx32olzViY195b RuIKPHT692WlGrPxJD/lR6yQwju3e08mNeeuF6imrk6qBaO5T4xNgXu0ccHRcaTGuu pxz2tq7ZvQXWw== Date: Thu, 9 May 2024 23:24:20 +0300 From: Mike Rapoport To: Steven Rostedt Cc: "Guilherme G. Piccoli" , "Luck, Tony" , Kees Cook , Joel Fernandes , "linux-kernel@vger.kernel.org" , "linux-trace-kernel@vger.kernel.org" , Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton , "Liam R. Howlett" , Vlastimil Babka , Lorenzo Stoakes , "linux-mm@kvack.org" , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "x86@kernel.org" , "H. Peter Anvin" , Peter Zijlstra , "linux-hardening@vger.kernel.org" , Guenter Roeck , Ross Zwisler , "wklin@google.com" , Vineeth Remanan Pillai , Suleiman Souhlal , Linus Torvalds , Catalin Marinas , Will Deacon Subject: Re: [POC][RFC][PATCH 0/2] pstore/mm/x86: Add wildcard memmap to map pstore consistently Message-ID: References: <3391c693-cf54-526b-79a8-d565e7140947@igalia.com> <20240411154007.5bdf8d95@gandalf.local.home> <20240412132243.053ad096@gandalf.local.home> <20240501105455.42b78a0b@gandalf.local.home> <20240509000023.096d4032@rorschach.local.home> <20240509133122.474130be@rorschach.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240509133122.474130be@rorschach.local.home> X-Rspamd-Queue-Id: 5BE0740018 X-Rspam-User: X-Rspamd-Server: rspam04 X-Stat-Signature: y8zbod6r3zsmfqmyrczcf14b3a65d7id X-HE-Tag: 1715286366-55378 X-HE-Meta: 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 gk6tLKMs m8d6iO5CI+lsVWWyurB2reifgizhIyj20dc9KytqICy9iWkriKdvsQS0DcNRQZOQn+d48F+IehVKOZznE8yEuKESVQIqGCls9DZBzOi8DpNnPbBs7iAqaX0NR0LZdTccyoJIsVtRD7s5Pj9HdjuXRavMkXxciPMIGdOfZyRVPSUIYrGTjaNB8p2AwAHeHmubaqIuGPx62XUPU2AFXeas7sm1f2XobPOsCJmOYtyPCXav/WT2me/xbiyzkAnpcNCyJ7tXswd3Q/n5zPBB2XG+KfZDULTaSzkK111dT X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, May 09, 2024 at 01:31:22PM -0400, Steven Rostedt wrote: > On Thu, 9 May 2024 00:00:23 -0400 > Steven Rostedt wrote: > > > I tried this approach and it unfortunately picks a different physical > > location every time :-( > > > > So it is either adding to e820 tables or we create a new way to > > allocate memory at early boot up. > > > > Hmm, now I'm testing it more and it always seems to end up in the same > location. I'm not sure why it failed the first three times I tried it :-/ If the kernel and the command line were the same, they shouldn't have. e820 translates to memblock the same way every boot and the early allocations also do not change from boot to boot. Could it be that three runs that failed had some differences in the kernel parameters? > -- Steve -- Sincerely yours, Mike.