From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gerd Hoffmann Subject: Re: [patch] crashkernel allocation failure #2 Date: Tue, 26 Jun 2007 08:54:50 +0200 Message-ID: <4680B83A.2060201@redhat.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Keir Fraser Cc: Xen Development Mailing List List-Id: xen-devel@lists.xenproject.org Keir Fraser wrote: > On 22/6/07 10:46, "Gerd Hoffmann" wrote: > >> A side effect of the second change is that you can specify just >> "crashkernel=64m" and have it moved to the right place just above the >> xen heap automagically. > > Does this really work in practice (i.e., is the crashkernel relocatable)? Patches floating around for quite some time, i386 is mainline already. Not fully sure about x86_64, but I think it they are merged too. So any recent mainline kernel as crash kernel should do (and a separate crash kernel isn't needed too). Also with the default xenheap size the crashkernel ends up at @16m, which is a common location for pre-relocation crash kernels, so it should work with older kernels just fine too. Of course you still have the option to explicitly specify the location ... cheers, Gerd