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 X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 40340C43441 for ; Fri, 16 Nov 2018 22:49:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0079F20883 for ; Fri, 16 Nov 2018 22:49:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0079F20883 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=telegraphics.com.au Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729764AbeKQJEF (ORCPT ); Sat, 17 Nov 2018 04:04:05 -0500 Received: from kvm5.telegraphics.com.au ([98.124.60.144]:40520 "EHLO kvm5.telegraphics.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725995AbeKQJEF (ORCPT ); Sat, 17 Nov 2018 04:04:05 -0500 Received: from localhost (localhost.localdomain [127.0.0.1]) by kvm5.telegraphics.com.au (Postfix) with ESMTP id E399328CDA; Fri, 16 Nov 2018 17:49:45 -0500 (EST) Date: Sat, 17 Nov 2018 09:49:48 +1100 (AEDT) From: Finn Thain To: Russell King - ARM Linux cc: Christoph Hellwig , Geert Uytterhoeven , Arnd Bergmann , Stephen N Chivers , Thomas Gleixner , Daniel Lezcano , John Stultz , linux-m68k@lists.linux-m68k.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [RFC PATCH 01/13] arm: Fix mutual exclusion in arch_gettimeoffset In-Reply-To: <20181116174705.GY30658@n2100.armlinux.org.uk> Message-ID: References: <20181112083422.GA19695@infradead.org> <20181113092012.GI30658@n2100.armlinux.org.uk> <20181113234336.GP30658@n2100.armlinux.org.uk> <20181114141632.GT30658@n2100.armlinux.org.uk> <20181116174705.GY30658@n2100.armlinux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 16 Nov 2018, Russell King - ARM Linux wrote: > > The EBSA110 is probably in a similar boat - I don't remember whether it > had 16MB or 32MB as the maximal amount of memory, but memory was getting > tight with some kernels even running a minimalist userspace. > > So, it's probably time to say goodbyte to the kernel support for these > platforms. > Your call. Note that removing code from mainline won't help users obtain older, smaller, -stable kernel releases, free from the bug we were discussing. (The bug appeared in Linux v2.6.32.) BTW, if you did want to boot Linux on a 16 MB system, you do have some options. https://lwn.net/Articles/741494/ https://lwn.net/Articles/608945/ https://tiny.wiki.kernel.org/ Contributing to this kind of effort probably has value for IoT deployments. I suspect it also cuts a small amount of bloat from a large number of other Linux systems. --