Return-path: Received: from noname.neutralserver.com ([70.84.186.210]) by canuck.infradead.org with esmtps (Exim 4.63 #1 (Red Hat Linux)) id 1ICxYp-0007UG-Ta for kexec@lists.infradead.org; Mon, 23 Jul 2007 09:02:54 -0400 Date: Mon, 23 Jul 2007 16:02:39 +0300 From: Dan Aloni Subject: Re: Determine version of kernel that produced vmcore Message-ID: <20070723130239.GA311@localdomain> References: <20070723050147.GA5691@in.ibm.com> <20070723204723oomichi@mail.jp.nec.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20070723204723oomichi@mail.jp.nec.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-bounces@lists.infradead.org Errors-To: kexec-bounces+dwmw2=infradead.org+dwmw2=infradead.org@lists.infradead.org To: Ken'ichi Ohmichi Cc: Don Zickus , Neil Horman , Bernhard Walle , kexec@lists.infradead.org, linux-kernel@vger.kernel.org, vgoyal@in.ibm.com On Mon, Jul 23, 2007 at 08:47:23PM +0900, Ken'ichi Ohmichi wrote: > > Hi, > > 2007/07/23 10:31:47 +0530, Vivek Goyal wrote: [..] > > > >I am also in favour of a complete kernel based solution. Export required > >info from kernel and let kexec-tools parse that info, pass it to second > >kernel and it will be appended to vmcore. > > > >This will put some restrictions on that we can't keep on changing the > >format of the info very frequently and some new features might not work > >with older kernels. But I guess, kexec-tools can provide an override option > >where dump filtering info can be passed on kexec-tools command line (as > >suggested by ken'chi). If user passes this info on command line then > >kexec-tools will not read the info exported from kernel. This way new > >features can be made to work on older kernels. > > That sounds good. Note that currently kexec doesn't actually pass the ELF notes themselves to the kernel, but only their physical addresses as extracted from /sys. If we want to be able to pass the notes themselves from userspace, a little more trickery will be needed here. > Dan Aloni, I'd like to cooperate with you for implementing this feature. > If you have some patches other than 2007/07/10 patches, could you send > me them ? I will update them. Sure, though I haven't made new patches (was busy with other things). Feel free to post new versions of these patches, I'll take a look and cooperate with you on this. -- Dan Aloni XIV LTD, http://www.xivstorage.com da-x (at) monatomic.org, dan (at) xiv.co.il _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec