I''m trying to migrate off of windows. I have CentOS on my laptop, on a new harddrive. The old harddrive is in a USB caddy. I''m got an HVM xen setup using mapping /dev/sdb (the USB drive) to hda. Windows boots correctly until it gets to mup.sys, at which point it sits at 100% cpu. I have found various mentions of this problem on here and elsewhere, but so far no fixes. I''m running Xen 3.1.0 on Centos 5.1: Xen version 3.1.0-53.1.21.el5 (mockbuild@(none)) (gcc version 4.1.2 20070626 (Red Hat 4.1.2-14)) Tue May 20 09:27:48 EDT 2008 This is my qemu log: domid: 1 qemu: the number of cpus is 1 *** image /local/domain/0/backend/vbd/1/768 format raw driver 0x693e40 Watching /local/domain/1/logdirty/next-active qemu_map_cache_init nr_buckets = 10000 shared page at pfn 3ffff buffered io page at pfn 3fffd xs_read(/vm/b1dfa3fe-8662-751b-79ef-0923e282be24/rtc/timeoffset): read error xs_read(): vncpasswd get error. /vm/b1dfa3fe-8662-751b-79ef-0923e282be24/vncpasswd. char device redirected to /dev/pts/1 Triggered log-dirty buffer switch I/O request not ready: 3, ptr: 0, port: e9, data: 56, count: 1, size: 1 This is my config file: name = "winxp" uuid = "b1dfa3fe-8662-751b-79ef-0923e282be24" maxmem = 1024 memory = 1024 shadow_memory = 8 vcpus = 1 builder = "hvm" kernel = "/usr/lib/xen/boot/hvmloader" boot = "c" pae = 0 acpi = 0 apic = 0 on_poweroff = "destroy" on_reboot = "restart" on_crash = "restart" device_model = "/usr/lib64/xen/bin/qemu-dm" stdvga=1 sdl = 0 vnc = 1 vncunused = 1 serial=''pty'' keymap = "en-us" disk = [ "phy:/dev/sdb,hda,w" ] If I take the xmexample.hvm and just change the "disk" entry to point to my physical drive I get the same behavior. FWIW, I have tried every combination of pae, acpi, apic on and off. Be grateful for any help. Jamie -- View this message in context: http://www.nabble.com/hang-in-mup.sys-tp17768180p17768180.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