Hi, I have Ubuntu 9.10 with 2.6.27.5 x86_64 kernel. The kernel was compiled using the following guide: http://preview.tinyurl.com/yze5f9m Xen is 3.3. xm info is below: host : Riley1 release : 2.6.27.5 version : #1 SMP Mon Nov 2 22:50:26 CST 2009 machine : x86_64 nr_cpus : 4 nr_nodes : 1 cores_per_socket : 1 threads_per_core : 1 cpu_mhz : 2588 hw_caps : 078bf3ff:e3d3fbff:00000000:00000010:00000001:00000000:00000001:00000000 virt_caps : total_memory : 15935 free_memory : 129 node_to_cpu : node0:0-3 node_to_memory : node0:129 xen_major : 3 xen_minor : 3 xen_extra : .0 xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p xen_scheduler : credit xen_pagesize : 4096 platform_params : virt_start=0xffff800000000000 xen_changeset : unavailable cc_compiler : gcc version 4.4.1 (Ubuntu 4.4.1-1ubuntu3) cc_compile_by : buildd cc_compile_domain : buildd cc_compile_date : Fri Aug 14 15:38:25 UTC 2009 xend_config_format : 4 brctl show bridge name bridge id STP enabled interfaces eth0 8000.00093d12f159 no peth0 virbr0 8000.000000000000 yes When I start xend I can see the following in /var/log/syslog: BLKTAPCTRL[17107]: blktapctrl_linux.c:23: /dev/xen/blktap0 device already exists When I try to start a xen vm I get the following: Error: (1, ''Internal error'', ''xc_dom_boot_domU_map: failed to mmap domU pages 0x9fe+0x85f0 [mmap, errno=14 (Bad address)]\n'') Please help Thanks -- View this message in context: http://old.nabble.com/xen-problems-tp26164393p26164393.html Sent from the Xen - User mailing list archive at Nabble.com. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users