Re: [Xen-users] Windows XP on VMX freeze

["Yuan, Jue" <yuanjue02@xxxxxxxxx>]

Hi all,

I finally found where the problem is with the help of a friend. :-)

About this freeze issue, that is mainly because the domU OS cannot get enough 
memory as it wants, which is because dom0 gets too much memory (almost all) 
from the computer.

solutions:
1. "xm mem-set 0 XXX" to set a suitable memory for dom0, and be sure that is 
still enough memory left for domU, which could be checked by "xm info"

2. if you don't wanna use "xm mem-set" everytime you boot up a domU, go to 
change the /boot/grub/menu.lst, adding "dom0_mem=XXX" behind the "kernel" 
line. Note that here the memory is measured by KB.

This should clear the freeze problem, at least in my case.

Hope this helps :-)

Besides, I still cannot get the network work properly. I cannot ping from dom0 
to domU or vice versa. And vif1.0 does not get a IPV4 address when using 
ifconfig to check it :-(

Any ideas?

On Sunday 04 June 2006 08:28, Michael Walker wrote:
> I don't have a solution - but I can report that I have seen
> the same thing.  I installed OpenSuse10.1 on my VT enabled
> system and when attempting to boot WindowsXP the system
> froze up.  The only response I could get was from the reset
> button.
>
> _Mike_
>
> Yuan, Jue wrote:
> > Hi all.
> >
> > I have a PC with Intel PD 930 and motherboard BIOS VT-enabled. The OS I
> > am running is SuSE 10.1, with Xen installed.
> >
> > I have viewed the 'Xen Full Virtualization Example' on
> > http://en.opensuse.org/Xen_Full_Virtualization_Example . But when
> > following that example to try to install Windows XP SP2 as a virtual
> > machine, I got a strange problem: the process freeze when it has just
> > begun :-(
> >
> > The console shows:
> > #xm create -c winxp_cd.hvm
> > Using config file "winxp_cd.hvm"
> >
> > Then the whole system freezes. I had to press 'reset' button in order to
> > let it reboot.
> >
> > What am I doing wrong? Any idea would be very appreciated. :-)
> >
> > Thanks in advance.
> >
> > The following is config file I use to boot Windows XP from CD:
> >
> > #  -*- mode: python; -*-
> > #========================================================================
> >==== # Python configuration setup for 'xm create'.
> > # This script sets the parameters used when a domain is created using 'xm
> > create'.
> > # You use a separate script for each domain you want to create, or
> > # you can set the parameters for the domain on the xm command line.
> > #========================================================================
> >====
> >
> > import os, re
> > arch = os.uname()[4]
> > if re.search('64', arch):
> >     arch_libdir = 'lib64'
> > else:
> >     arch_libdir = 'lib'
> >
> > #------------------------------------------------------------------------
> >---- # Kernel image file.
> > kernel = "/usr/lib/xen/boot/hvmloader"
> >
> > # The domain build function. HVM domain uses 'hvm'.
> > builder='hvm'
> >
> > # Initial memory allocation (in megabytes) for the new domain.
> > memory = 384
> >
> > # A name for your domain. All domains must have different names.
> > name = "winxp_cd"
> >
> > #------------------------------------------------------------------------
> >----- # the number of cpus guest platform has, default=1
> > #vcpus=1
> >
> > # enable/disable HVM guest PAE, default=0 (disabled)
> > #pae=0
> >
> > # enable/disable HVM guest ACPI, default=0 (disabled)
> > #acpi=0
> >
> > # enable/disable HVM guest APIC, default=0 (disabled)
> > #apic=0
> >
> > # List of which CPUS this domain is allowed to use, default Xen picks
> > #cpus = ""         # leave to Xen to pick
> > #cpus = "0"        # all vcpus run on CPU0
> > #cpus = "0-3,5,^1" # run on cpus 0,2,3,5
> >
> > # Optionally define mac and/or bridge for the network interfaces.
> > # Random MACs are assigned if not given.
> > #vif = [ 'type=ioemu, mac=00:16:3e:00:00:11, bridge=xenbr0' ]
> > # type=ioemu specify the NIC is an ioemu device not netfront
> > vif = [ 'type=ioemu, bridge=xenbr0' ]
> >
> > #------------------------------------------------------------------------
> >---- # Define the disk devices you want the domain to have access to, and
> > # what you want them accessible as.
> > # Each disk entry is of the form phy:UNAME,DEV,MODE
> > # where UNAME is the device, DEV is the device name the domain will see,
> > # and MODE is r for read-only, w for read-write.
> >
> > #disk = [ 'phy:hda1,hda1,r' ]
> > disk = [ 'file:/var/lib/xen/images/winxp.img,ioemu:hda,w' ]
> >
> > #------------------------------------------------------------------------
> >---- # Configure the behaviour when a domain exits.  There are three
> > 'reasons' # for a domain to stop: poweroff, reboot, and crash.  For each
> > of these you # may specify:
> > #
> > #   "destroy",        meaning that the domain is cleaned up as normal;
> > #   "restart",        meaning that a new domain is started in place of
> > the old #                     one;
> > #   "preserve",       meaning that no clean-up is done until the domain
> > is #                     manually destroyed (using xm destroy, for
> > example); or #   "rename-restart", meaning that the old domain is not
> > cleaned up, but is #                     renamed and a new domain started
> > in its place. #
> > # The default is
> > #
> > #   on_poweroff = 'destroy'
> > #   on_reboot   = 'restart'
> > #   on_crash    = 'restart'
> > #
> > # For backwards compatibility we also support the deprecated option
> > restart #
> > # restart = 'onreboot' means on_poweroff = 'destroy'
> > #                            on_reboot   = 'restart'
> > #                            on_crash    = 'destroy'
> > #
> > # restart = 'always'   means on_poweroff = 'restart'
> > #                            on_reboot   = 'restart'
> > #                            on_crash    = 'restart'
> > #
> > # restart = 'never'    means on_poweroff = 'destroy'
> > #                            on_reboot   = 'destroy'
> > #                            on_crash    = 'destroy'
> >
> > on_poweroff = 'destroy'
> > on_reboot   = 'destroy'
> > on_crash    = 'destroy'
> >
> > #========================================================================
> >====
> >
> > # New stuff
> > device_model = '/usr/' + arch_libdir + '/xen/bin/qemu-dm'
> >
> > #------------------------------------------------------------------------
> >----- # Disk image for
> > cdrom='/dev/sr0'
> >
> > #------------------------------------------------------------------------
> >----- # boot on floppy (a), hard disk (c) or CD-ROM (d)
> > boot='d'
> > #------------------------------------------------------------------------
> >----- #  write to temporary files instead of disk image files
> > #snapshot=1
> >
> > #------------------------------------------------------------------------
> >---- # enable SDL library for graphics, default = 0
> > sdl=1
> >
> > #------------------------------------------------------------------------
> >---- # enable VNC library for graphics, default = 1
> > vnc=0
> >
> > #------------------------------------------------------------------------
> >---- # enable spawning vncviewer(only valid when vnc=1), default = 1
> > vncviewer=0
> >
> > #------------------------------------------------------------------------
> >---- # no graphics, use serial port
> > #nographic=0
> >
> > #------------------------------------------------------------------------
> >---- # enable stdvga, default = 0 (use cirrus logic device model)
> > stdvga=0
> >
> > #------------------------------------------------------------------------
> >----- #   serial port re-direct to pty deivce, /dev/pts/n
> > #   then xm console or minicom can connect
> > serial='pty'
> >
> > #------------------------------------------------------------------------
> >---- # enable ne2000, default = 0(use pcnet)
> > ne2000=0
> >
> >
> > #------------------------------------------------------------------------
> >----- #   enable audio support
> > #audio=1
> >
> >
> > #------------------------------------------------------------------------
> >----- #    set the real time clock to local time [default=0 i.e. set to
> > utc] #localtime=1
> >
> >
> > #------------------------------------------------------------------------
> >----- #    start in full screen
> > #full-screen=1

-- 
Best Regards
Yuan, Jue @ www.yuanjue.net

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