Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753170AbZFHGlR (ORCPT ); Mon, 8 Jun 2009 02:41:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751871AbZFHGlG (ORCPT ); Mon, 8 Jun 2009 02:41:06 -0400 Received: from qw-out-2122.google.com ([74.125.92.27]:19846 "EHLO qw-out-2122.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751639AbZFHGlE (ORCPT ); Mon, 8 Jun 2009 02:41:04 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=ruBbkQHnXUPh9sstj8prOb8UsOtddJlKrLofWBSZcqGn5dnLY0bsJsW1stMx17wuY0 zvIWC4Jvz4ymuzYVU+7HDXR0WgDMH92RR51hJO7gZ5aoB90u5zwQoCVKs0+5fwMEKx6R A+QiGxtu6GSYtmHVhxDhHKKlzVBQAulY3rZdQ= MIME-Version: 1.0 In-Reply-To: <4A2CA96D.3090502@oracle.com> References: <20090605075614.GC8171@cr0.nay.redhat.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> <4A2AEBE3.4000100@kernel.org> <20090608015242.GB2596@cr0.nay.redhat.com> <4A2CA96D.3090502@oracle.com> Date: Mon, 8 Jun 2009 14:41:06 +0800 Message-ID: <2375c9f90906072341o2cded749m45bdddfdb499469@mail.gmail.com> Subject: Re: /proc/kcore has a unreasonable size(281474974617600) in x86_64 2.6.30-rc8. From: =?UTF-8?Q?Am=C3=A9rico_Wang?= To: Tao Ma Cc: Yinghai Lu , Andrew Morton , linux-kernel@vger.kernel.org, Ingo Molnar , Andi Kleen Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1994 Lines: 71 On Mon, Jun 8, 2009 at 2:02 PM, Tao Ma wrote: > > > Amerigo Wang wrote: >> >> On Sat, Jun 06, 2009 at 03:21:23PM -0700, Yinghai Lu wrote: >>> >>> 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. >> >> Yeah. >> >> Tao, can you reproduce the number mentioned in the subject?? > > Sorry for the delay. > > But the result is the same Yes? Your printk() shows kcore size is: 5301604352, and in your subject it is 281474974617600... Or they happened in the same time? -- 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/