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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 75CEDC433EF for ; Tue, 5 Oct 2021 20:54:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 540976121F for ; Tue, 5 Oct 2021 20:54:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236059AbhJEU4a (ORCPT ); Tue, 5 Oct 2021 16:56:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:58598 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230027AbhJEU41 (ORCPT ); Tue, 5 Oct 2021 16:56:27 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id BDFDC6121F; Tue, 5 Oct 2021 20:54:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1633467276; bh=vrx4nycNQWe2zmH+Kp1Mpj5jptOEbE1oU7OEdqQQccs=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=E5hcnzj+39m9VFZG2KWUDcC8VTs69ZGMY/BhDLHVq725LOL7svRszbZU3EtkyYacn kmlxB1l9gYYSsmSMpnkgE7f2H129rVkpJWzWCgBmRDn41RVZo5ZjDxC2l8wt6xLMt/ HCMnMX+CsoW0f//3reQDnRYwM1uUQm/UAYxuBq1U= Date: Tue, 5 Oct 2021 13:54:35 -0700 From: Andrew Morton To: Mike Kravetz Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Anshuman Khandual , Will Deacon , Mark Rutland , Barry Song , stable@vger.kernel.org Subject: Re: [PATCH] arm64/hugetlb: fix CMA gigantic page order for non-4K PAGE_SIZE Message-Id: <20211005135435.341477bb4b50b84202c32450@linux-foundation.org> In-Reply-To: <20211005202529.213812-1-mike.kravetz@oracle.com> References: <20211005202529.213812-1-mike.kravetz@oracle.com> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 5 Oct 2021 13:25:29 -0700 Mike Kravetz wrote: > For non-4K PAGE_SIZE configs, the largest gigantic huge page size is > CONT_PMD_SHIFT order. What are the user visible effects of this bug?