From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752845AbbICJHm (ORCPT ); Thu, 3 Sep 2015 05:07:42 -0400 Received: from pandora.arm.linux.org.uk ([78.32.30.218]:47097 "EHLO pandora.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752309AbbICJHk (ORCPT ); Thu, 3 Sep 2015 05:07:40 -0400 Date: Thu, 3 Sep 2015 10:07:26 +0100 From: Russell King - ARM Linux To: Lucas Stach Cc: Yongtaek Lee , Nicolas Pitre , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: Re: [PATCH] ARM: fix bug which VMALLOC_START is lowwer than 0xf0000000 Message-ID: <20150903090726.GV21084@n2100.arm.linux.org.uk> References: <20150903080028.GS21084@n2100.arm.linux.org.uk> <1441268887-11618-1-git-send-email-ytk.lee@samsung.com> <1441269272.3102.3.camel@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1441269272.3102.3.camel@pengutronix.de> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 03, 2015 at 10:34:32AM +0200, Lucas Stach wrote: > Am Donnerstag, den 03.09.2015, 17:28 +0900 schrieb Yongtaek Lee: > > As i know "vmalloc=size" is not mandatory so that i think default value of > > vmalloc_min is wrong. > > > So, if we go and apply your logic to a 1GB system we should resize the > vmalloc area to 0 bytes in order to avoid RAM truncation without > CONFIG_HIGHMEM? > > Sorry, but the only sane options here are to either live with the > truncation, enable CONFIG_HIGHMEM, or set vmalloc size manually. > Changing a default value that affects everyone for the benefit of your > specific use-case isn't a sane option. Exactly right. -- FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net.