From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx1.redhat.com ([209.132.183.28]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Xog9K-00061r-JC for kexec@lists.infradead.org; Wed, 12 Nov 2014 22:12:28 +0000 Date: Wed, 12 Nov 2014 17:12:05 -0500 From: Vivek Goyal Subject: Re: [PATCH] kdump, x86: report actual value of phys_base in VMCOREINFO Message-ID: <20141112221205.GB5265@redhat.com> References: <20141112.154042.59640143160036130.d.hatayama@jp.fujitsu.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20141112.154042.59640143160036130.d.hatayama@jp.fujitsu.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: HATAYAMA Daisuke Cc: kumagai-atsushi@mxc.nes.nec.co.jp, anderson@redhat.com, kexec@lists.infradead.org, ebiederm@xmission.com, linux-kernel@vger.kernel.org On Wed, Nov 12, 2014 at 03:40:42PM +0900, HATAYAMA Daisuke wrote: > Currently, VMCOREINFO note information reports the virtual address of > phys_base that is assigned to symbol phys_base. But this doesn't make > sense because to refer to value of the phys_base, it's necessary to > get the value of phys_base itself we are now about to refer to. > Hi Hatayama, /proc/vmcore ELF headers have virtual address information and using that you should be able to read actual value of phys_base. gdb deals with virtual addresses all the time and can read value of any symbol using those headers. So I am not sure what's the need for exporting actual value of phys_base. Thanks Vivek _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec