From mboxrd@z Thu Jan 1 00:00:00 1970 From: Markus Schuster Subject: Re: Massive problems with 'PCI-DMA: Out of SW-IOMMU space for XXX bytes [..]' with 3Ware controller Date: Sun, 25 Nov 2007 22:08:35 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7Bit Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Keir Fraser wrote: Before I start testing, I have some questions: > What happens if you run the old kernel (32-bit 2.6.16) on new Xen? I could simply exchange the Xen hypervisor on my old system, but 1. Will the old xend work with the new hypervisor? I don't want to further touch the old (stable) system. An exchange of the hypervisor is not the problem, as it's just one file, but the complete Xen userland... 2. Will a 32bit xend work with a 64bit hypervisor? > What happens if you run a new (2.6.18) 32-bit kernel on new Xen? Ok, I'll have to do some compiling before I can say anything on this (I only have 64bit packages (Xen and kernel)). And I have to install a test-32bit-dom0. > Or what about new 2.6.18 kernel on old Xen? You mean the 32bit version of 2.6.18? Have to do some compiling... Regards, Markus Schuster