On Fri, Jun 11, 2010 at 12:23:04PM +1000, Russell Coker wrote: > On Fri, 11 Jun 2010, Bastian Blank <wa...@debian.org> wrote: > > On Thu, Jun 10, 2010 at 05:54:28PM +0200, Bastian Blank wrote: > > > I'm currently thinking about which version of Xen supporting in Squeeze. > > > There are two possibilities: 3.4 and 4.0. 3.4 is currently in testing > > > and unstable, 4.0 is in experimental. > > > > > > Xen 3.4 > > > ======= > > > Pros > > > - Proofed to be stable > > Not on my machines it hasn't. One i386 server which ran Lenny/Xen for ages > without problems (since before Lenny was released) is now running Xen 3.4 > from > Unstable and it's not going particularly well. The other day it was in a > cycle of booting and crashing when loading 2.6.32, I booted 2.6.26 and then > before the init scripts finished I rebooted with 2.6.32 and it worked. > > Different machines require different amounts of memory reserved for Dom0 for > unknown reasons. > > A couple of other machines which according to the Xen web site have suitable > CPUs won't boot the Xen kernels that are currently in Unstable. > > It just seems flakey to me. > > > > Cons > > > - NUMA-mode only opt-in, no infos about stability > > > - Fails on several modern machines because of IO-APIC problems > > It fails on plenty of i386 machines (P3 class) for me. > > > > Xen 4.0 > > > ======= > > > Pros > > > - NUMA > > > - More tested with the Kernel in Squeeze > > > Cons > > > - Quite new > > > > > > My personal preference would be to go with 4.0. > > Based on my experience with Xen I think that we should have both. Then if > one > doesn't work we can try the other. > > My impression of Xen stability is that trying two different versions and > hoping that one will work is a good strategy for any given server. > > Bastian, thanks a lot for all your great work on this, it's very important to > me and to lots of other people! > > But through no fault of anyone in the Debian project I expect that an ideal > result of one version that works well for almost everyone can't be achieved. > > > PS It would be nice if we could get Grub2 updated to boot Xen kernels. My > SE > Linux Play Machine is offline right now because I messed up the Grub2 > configuration so badly that it won't even give me a boot menu. >
I guess you need the dummy=dummy hack as described in here: http://wiki.xensource.com/xenwiki/XenCommonProblems -- Pasi -- To UNSUBSCRIBE, email to debian-devel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20100611065715.gp17...@reaktio.net
