From patchwork Wed Sep 4 15:41:03 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John David Anglin X-Patchwork-Id: 2853786 Return-Path: X-Original-To: patchwork-linux-parisc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 8DCB19F3DC for ; Wed, 4 Sep 2013 15:41:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4EFE9201CE for ; Wed, 4 Sep 2013 15:41:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E6C65201BD for ; Wed, 4 Sep 2013 15:40:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934868Ab3IDPk5 (ORCPT ); Wed, 4 Sep 2013 11:40:57 -0400 Received: from smtp1.primus.ca ([209.216.129.80]:60214 "EHLO mail-07.primus.ca" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S935145Ab3IDPk4 (ORCPT ); Wed, 4 Sep 2013 11:40:56 -0400 Received: from i216-58-24-141.cybersurf.com ([216.58.24.141] helo=[192.168.0.181]) by mail-07.primus.ca with esmtpa (Exim 4.72) (envelope-from ) id 1VHFCQ-0000Rd-21; Wed, 04 Sep 2013 11:40:54 -0400 Message-ID: <5227548F.5090909@bell.net> Date: Wed, 04 Sep 2013 11:41:03 -0400 From: John David Anglin User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130801 Thunderbird/17.0.8 MIME-Version: 1.0 To: Helge Deller , linux-parisc Subject: Re: Does there exists any 32bit-only PARISC SMP machines? References: <521F9848.4010404@gmx.de> <1377830541.2331.5.camel@dabdike> <20130903155643.GA1430@glitch> <20130904140705.GA30223@glitch> <20130904142847.GA2893@glitch> In-Reply-To: <20130904142847.GA2893@glitch> X-Authenticated: danglin-lux@magma.ca - i216-58-24-141.cybersurf.com ([192.168.0.181]) [216.58.24.141] Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org X-Spam-Status: No, score=-9.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP On 9/4/2013 10:28 AM, Domenico Andreoli wrote: > BTW, this is the most detailed investigation I'm aware of: > > https://lkml.org/lkml/2008/4/20/251 I have the sense that MEM_RENDEZ_HI may not be set correctly for your machine: /* Set the smp rendezvous address into page zero. ** It would be safer to do this in init_smp_config() but ** it's just way easier to deal with here because ** of 64-bit function ptrs and the address is local to this file. */ load32 PA(smp_slave_stext),%r10 stw %r10,0x10(%r0) /* MEM_RENDEZ */ stw %r0,0x28(%r0) /* MEM_RENDEZ_HI - assume addr < 4GB */ This is possibly due to a change in memory range detection: Initialized PDC Console for debugging. Determining PDC firmware type: System Map. model 00005d10 00000491 00000000 00000002 77b406fc 100000f0 00000008 000000b2 000000b2 @@ -8,41 +9,28 @@ CPUID vers 17 rev 10 (0x0000022a) capabilities 0x3 model 9000/785/J5600 -Memory Ranges: - 0) Start 0x0000000000000000 End 0x00000000efffffff Size 3840 MB - 1) Start 0x00000010f0000000 End 0x00000010ffffffff Size 256 MB -Total Memory: 4096 MB -initrd: 7fa75000-7ffee77e -initrd: reserving 3fa75000-3ffee77e (mem_max 100000000) -On node 0 totalpages: 983040 - Normal zone: 13440 pages used for memmap - Normal zone: 0 pages reserved - Normal zone: 969600 pages, LIFO batch:31 -On node 1 totalpages: 65536 - Normal zone: 896 pages used for memmap - Normal zone: 0 pages reserved - Normal zone: 64640 pages, LIFO batch:15 +Total Memory: 3840 MB Dave --- dmesg.txt 2008-04-21 11:19:16.000000000 +0200 +++ dmesg2.txt 2008-04-21 15:27:46.000000000 +0200 @@ -1,6 +1,7 @@ -Linux version 2.6.22-3-parisc64-smp (Debian 2.6.22-6) (maks@debian.org) (gcc version 4.1.3 20071019 (prerelease) (Debian 4.1.2-17)) #2 SMP Mon Nov 12 21:04:20 CET 2007 +Linux version 2.6.25 (cavok@ska) (gcc version 4.1.3 20080308 (prerelease) (Debian 4.1.2-21)) #8 SMP Mon Apr 21 12:25:50 CES8 FP[0] enabled: Rev 1 Model 16 The 64-bit Kernel has started... +console [ttyB0] enabled