From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752286AbbCKPBa (ORCPT ); Wed, 11 Mar 2015 11:01:30 -0400 Received: from smtp43.i.mail.ru ([94.100.177.103]:38693 "EHLO smtp43.i.mail.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750851AbbCKPB2 (ORCPT ); Wed, 11 Mar 2015 11:01:28 -0400 Message-ID: <550058BE.3060406@list.ru> Date: Wed, 11 Mar 2015 18:01:18 +0300 From: Stas Sergeev User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 MIME-Version: 1.0 To: Russell King - ARM Linux , Gregory CLEMENT CC: Linux kernel , linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH] n_tty: use kmalloc() instead of vmalloc() to avoid crash on armada-xp References: <54FF21BE.2040506@list.ru> <550038C9.7010807@free-electrons.com> <20150311131433.GC8656@n2100.arm.linux.org.uk> In-Reply-To: <20150311131433.GC8656@n2100.arm.linux.org.uk> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spam: Not detected X-Mras: Ok Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 11.03.2015 16:14, Russell King - ARM Linux пишет: > On Wed, Mar 11, 2015 at 01:44:57PM +0100, Gregory CLEMENT wrote: >> Hi Stas, >> >> On 10/03/2015 17:54, Stas Sergeev wrote: >>> Hello, the patch below is needed for a successful boot on armada-xp. >>> >> I am really surprised by this patch because I used the Armada XP based >> board in a daily base and I never saw this issue. > Can you provide some details about your board - does it have 8GB of > memory, ranging from 0-0xf0000000, and 4G-8G ? I wonder about this 256Mb memory hole. There is only one dimm for whole 8Gb. It seems 0xf000000-0xffffffff is used for PCI though: --- 0xf3000000-0xf303ffff 64bit] [ 119.290027] pci 0000:00:00.0: BAR 2: set to [mem 0xf3000000-0xf303ffff 64bit] (PCI address [0xf3000000-0xf303ffff]) [ 119.300509] pci 0000:00:00.0: BAR 0: assigned [mem 0xf3040000-0xf305ffff 64bit] [ 119.307883] pci 0000:00:00.0: BAR 0: set to [mem 0xf3040000-0xf305ffff 64bit] (PCI address [0xf3040000-0xf305ffff]) [ 119.318367] pci 0000:00:00.0: BAR 6: assigned [mem 0xf3060000-0xf306ffff pref] --- Does this mean that the 256Mb of physical memory is completely unaccessable on this board?