Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752960AbZFFWVv (ORCPT ); Sat, 6 Jun 2009 18:21:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752423AbZFFWVo (ORCPT ); Sat, 6 Jun 2009 18:21:44 -0400 Received: from hera.kernel.org ([140.211.167.34]:39341 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751684AbZFFWVo (ORCPT ); Sat, 6 Jun 2009 18:21:44 -0400 Message-ID: <4A2AEBE3.4000100@kernel.org> Date: Sat, 06 Jun 2009 15:21:23 -0700 From: Yinghai Lu User-Agent: Thunderbird 2.0.0.19 (X11/20081227) MIME-Version: 1.0 To: Tao Ma CC: Amerigo Wang , Andrew Morton , linux-kernel@vger.kernel.org, Ingo Molnar , Andi Kleen Subject: Re: /proc/kcore has a unreasonable size(281474974617600) in x86_64 2.6.30-rc8. References: <4A289928.7040508@oracle.com> <20090604223805.2962e826.akpm@linux-foundation.org> <4A28C262.5020605@oracle.com> <20090605075614.GC8171@cr0.nay.redhat.com> <4A28DDEB.4000409@oracle.com> <2375c9f90906050209h191df8fav36fc9507654c5ca6@mail.gmail.com> <20090605021424.ba352b0f.akpm@linux-foundation.org> <4A28E5C9.6010408@oracle.com> <20090605095155.GC8354@cr0.nay.redhat.com> <4A292B0D.8030807@oracle.com> <4A295AFB.80909@kernel.org> <4A2A7F33.4030807@oracle.com> In-Reply-To: <4A2A7F33.4030807@oracle.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1410 Lines: 47 Tao Ma wrote: > > Yinghai Lu wrote: >> Tao Ma wrote: >>> >>> Amerigo Wang wrote: >>>> On Fri, Jun 05, 2009 at 05:30:49PM +0800, Tao Ma wrote: >>>>>> Please send the boot logs: dmesg -s 1000000 > foo >>>>> attached. >>>>> #######high memory 18446612137615818752, size_t 18446612137615818752 >>>>> #######kcore size 5301604352, PAGE_OFFSET 0, PAGE_SIZE 4096 >>>> >>>> These two lines must be added by yourself... >>>> >>>> What?! >>>> How can PAGE_OFFSET be 0?? >>>> Can you show us these two printk() you just added? >>>> >>>> And, the size of kcore is not the crazy number in the subject... >>>> This one is much saner.. >>> Sorry, I used the wrong printk. the correct one is: >>> #######high memory 18446612137615818752, size_t 18446612137615818752 >>> #######kcore size 5301604352, PAGE_OFFSET 18446612132314218496, >>> PAGE_SIZE 4096 >>> >> >> %lx should be used. >> >> also you compiler doesn't like >> >> high_memory = (void *)__va(max_pfn * PAGE_SIZE - 1) + 1; >> >> in setup.c? > Sorry fo my poor English, bug what do you mean? > > I just printk in the setup.c and the result is > > @@@@high_momory ffff88013c000000 so that value print out is right. YH -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/