Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754831AbZFFOjU (ORCPT ); Sat, 6 Jun 2009 10:39:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753543AbZFFOjN (ORCPT ); Sat, 6 Jun 2009 10:39:13 -0400 Received: from rcsinet11.oracle.com ([148.87.113.123]:36480 "EHLO rgminet11.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753455AbZFFOjM (ORCPT ); Sat, 6 Jun 2009 10:39:12 -0400 Message-ID: <4A2A7F33.4030807@oracle.com> Date: Sat, 06 Jun 2009 22:37:39 +0800 From: Tao Ma User-Agent: Thunderbird 2.0.0.21 (Windows/20090302) MIME-Version: 1.0 To: Yinghai Lu 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> In-Reply-To: <4A295AFB.80909@kernel.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Source-IP: abhmt009.oracle.com [141.146.116.18] X-Auth-Type: Internal IP X-CT-RefId: str=0001.0A090206.4A2A7F39.0287:SCFSTAT5015188,ss=1,fgs=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1398 Lines: 48 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 and my gcc version is: gcc (GCC) 4.1.2 20070626 (Red Hat 4.1.2-14) Thanks. Tao -- 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/