From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from 124x34x33x190.ap124.ftth.ucom.ne.jp ([124.34.33.190] helo=master.linux-sh.org) by bombadil.infradead.org with esmtp (Exim 4.69 #1 (Red Hat Linux)) id 1NS565-0006LD-ID for kexec@lists.infradead.org; Tue, 05 Jan 2010 08:49:06 +0000 Date: Tue, 5 Jan 2010 17:48:51 +0900 From: Paul Mundt Subject: Re: Linux kernel crash dumps for ARM Message-ID: <20100105084850.GA27860@linux-sh.org> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: 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-bounces@lists.infradead.org Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Venkappa Mala Cc: "rmk+lkml@arm.linux.org.uk" , Kexec Mailing List , "Eric W. Biederman" , linux-kernel@vger.kernel.org On Mon, Jan 04, 2010 at 09:20:23PM -0800, Eric W. Biederman wrote: > Venkappa Mala writes: > > > > 2) As per kexec supports, kexec-tool is required and this allows you to load directly > > to a new kernel from the currently running one > > > > As from my side, i am not able to find arm implementation support in kexec-tools/crash sources. > > > > - is kexce-tool supported for ARM or not? > > It would be rather counterintuitive for the kernel to support kexec and the necessary userspace components not to. The MAINTAINERS file says: KEXEC M: Eric Biederman W: http://ftp.kernel.org/pub/linux/kernel/people/horms/kexec-tools/ L: kexec@lists.infradead.org S: Maintained F: include/linux/kexec.h F: kernel/kexec.c While the above URL redirects to gitweb, resulting in: http://git.kernel.org/?p=linux/kernel/git/horms/kexec-tools.git;a=summary A peripheral grep of the kexec-tools source results in: $ git grep kdump | grep arm kexec/arch/arm/kexec-arm.c: return 0; /* kdump is not supported on this platform (yet) */ So one could infer that kexec is supported on ARM whilst kdump is not. Adding crashdump support requires both some kernel and kexec-tools glue, but is fairly straightforward, just look at the other ports. _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec