Further testing (haven't done the extra recommended things yet). xendom0-105/xen-3.9.3 Success. This works but hardware virtualization exhibits the same issues with WinXP as the xendom0-97/xen-4.0.0 combo. The configs are identical except that qemu-dm is in /usr/lib64/xen/bin whereas with xen-4.0.0 it lives in /usr/lib/xen/bin (i.e. changed in the xm create file). So these work for me: xendom0-97/xen-4.0.0 xendom0-105/xen-3.9.3 This doesn't: xendom0-105/xen-4.0.0 Here's the grub menu file (you are mind readers! - as you can see nomodeset! The machine is not running gnome or kde desktops. It's pretty much headless): # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,0) # kernel /vmlinuz-version ro root=/dev/mapper/VolGroup00-LogVol00 # initrd /initrd-[generic-]version.img #boot=/dev/sda default=1 timeout=0 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title Fedora (2.6.32.11-1.2.97.xendom0.fc12.x86_64) root (hd0,0) kernel /xen.gz dom0_mem=1024M module /vmlinuz-2.6.32.11-1.2.97.xendom0.fc12.x86_64 ro root=/dev/mapper/VolGroup00-LogVol00 LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us selinux=0 ipv6.disable=1 nomodeset module /initramfs-2.6.32.11-1.2.97.xendom0.fc12.x86_64.img title Fedora (2.6.32.14-1.2.105.xendom0.fc12.x86_64) root (hd0,0) kernel /xen.gz dom0_mem=1024M module /vmlinuz-2.6.32.14-1.2.105.xendom0.fc12.x86_64 ro root=/dev/mapper/VolGroup00-LogVol00 LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us selinux=0 ipv6.disable=1 nomodeset module /initramfs-2.6.32.14-1.2.105.xendom0.fc12.x86_64.img title Fedora (2.6.32.12-115.fc12.x86_64) root (hd0,0) kernel /vmlinuz-2.6.32.12-115.fc12.x86_64 ro root=/dev/mapper/VolGroup00-LogVol00 LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us selinux=0 ipv6.disable=1 initrd /initramfs-2.6.32.12-115.fc12.x86_64.img title Fedora (2.6.31.5-127.fc12.x86_64) root (hd0,0) kernel /vmlinuz-2.6.31.5-127.fc12.x86_64 ro root=/dev/mapper/VolGroup00-LogVol00 LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us selinux=0 ipv6.disable=1 initrd /initramfs-2.6.31.5-127.fc12.x86_64.img Cheers V On Thu, 3 Jun 2010 10:37:34 pm Pasi Kärkkäinen wrote: > On Thu, Jun 03, 2010 at 01:33:37PM +0100, M A Young wrote: > > On Thu, 3 Jun 2010, Pasi Kärkkäinen wrote: > >>> xendom0-105/xen-4.0.0 crashes and burns badly with a pv32fc12 domU (so > >>> badly the keyboard lights blink in pain. Reset button required. Lots > >>> and lots of hypervisorish stuff all over the screen. Very likely the > >>> cause is noted in there somewhere). > >> > >> Please set up a serial console so you can capture the full boot and > >> error/crash messages: > >> http://wiki.xensource.com/xenwiki/XenSerialConsole > >> > >> A couple of questions: > >> > >> - Do you have "nomodeset" parameter for the dom0 kernel? > >> - Did you limit dom0 memory to, say, 1024 MB ? > > > > This last point could be an issue as I think the balloon driver has > > problems in the current kernel. I can certainly get a crash on a low > > memory machine. > > Yeah, it's good to give a fixed amount of memory for dom0 and remove the > need for dom0 ballooning when creating new vms. > > -- Pasi -- xen mailing list xen@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/xen