[Xen-devel] Error creating HVM domain in Xen-3.1

["Nidhi Aggarwal" <aggarwalnidhi@xxxxxxxxx>]

Hi,

I am trying  to set up fully virtualized guest VMs (Fedora core 6) on Xen -3.1 on a AMD Opteron SVM enabled system (blade with 2 dual cores). I followed the instructions in the user manual to create an image of the OS. I have included the configuration file that I am using and also information using xm info. I am a newbie to Xen installation and would really appreciate help and suggestions. 

Following is the error message I get when I try the command  xm create -c xmexample.hvm

Using config file "./xmexample.hvm".
Started domain HVM1
Unexpected error: exceptions.OSError

Please report to 
xen-devel@xxxxxxxxxxxxxxxxxxx
Traceback (most recent call last):
  File "/usr/sbin/xm", line 10, in ?
    main.main(sys.argv)
  File "//usr/lib64/python/xen/xm/main.py", line 2453, in main
    _, rc = _run_cmd(cmd, cmd_name, args)
  File "//usr/lib64/python/xen/xm/main.py", line 2477, in _run_cmd
    return True, cmd(args)
  File "<string>", line 1, in <lambda>
  File "//usr/lib64/python/xen/xm/main.py", line 1266, in xm_importcommand
    cmd.main([command] + args)
  File "//usr/lib64/python/xen/xm/create.py", line 1292, in main
    do_console(sxp.child_value
(config, 'name', -1))
  File "//usr/lib64/python/xen/xm/create.py", line 1317, in do_console
    (p, rv) = os.waitpid(cpid, os.WNOHANG)
OSError: [Errno 10] No child processes



Xm info

host                   : bladespp-c9
release                : 2.6.18-xen
version                : #1 SMP Fri Jul 13 11:05:30 PDT 2007
machine                : x86_64
nr_cpus                : 4
nr_nodes               : 1
sockets_per_node       : 2
cores_per_socket       : 2
threads_per_core       : 1
cpu_mhz                : 2400
hw_caps                : 178bfbff:ebd3fbff:00000000:00000010:00002001:00000000:0000001f
total_memory           : 16381
free_memory            : 526
xen_major              : 3
xen_minor              : 1
xen_extra              : .0
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 hvm-3.0-x86_32p hvm-3.0-x86_64
 
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : Fri May 18 16:59:32 2007 +0100 15042:c0b0974fb055
cc_compiler            : gcc version 
4.1.2 20070626 (Red Hat 4.1.2-13)
cc_compile_by          : nidhia
cc_compile_domain      : 
cc_compile_date        : Fri Jul 13 11:12:43 PDT 2007
xend_config_format     : 4


CONFIGURATION FILE


#  -*- 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.
#
# WARNING: Creating a domain with insufficient memory may cause out of
#          memory errors. The domain needs enough memory to boot kernel
#          and modules. Allocating less than 32MBs is not recommended.
memory = 512

# Shadow pagetable memory for the domain, in MB.
# Should be at least 2KB per MB of domain memory, plus a few MB per vcpu.
# shadow_memory = 8

# A name for your domain. All domains must have different names.
name = "HVM1"

# 128-bit UUID for the domain.  The default behavior is to generate a new UUID
# on each call to 'xm create'.
#uuid = "06ed00fe-1162-4fc4-b5d8-11993ee4a8b9"

#-----------------------------------------------------------------------------
# The number of cpus guest platform has, default=1
#vcpus=1

# Enable/disable HVM guest PAE, default=1 (enabled)
#pae=1

# Enable/disable HVM guest ACPI, default=1 (enabled)
#acpi=1

# Enable/disable HVM APIC mode, default=1 (enabled)
# Note that this option is ignored if vcpus > 1
#apic=1

# 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, model=ne2k_pci' ]
# type=ioemu specify the NIC is an ioemu device not netfront
#vif = [ 'type=ioemu, bridge=eth0' ]

#----------------------------------------------------------------------------
# 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:/home/nidhia/guestos/hd.img,ioemu:sda,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_reboot   = 'restart'
#   on_crash    = 'restart'
#
# For backwards compatibility we also support the deprecated option restart
#
# restart = 'onreboot' means >#                            on_reboot   = 'restart'
#                            on_crash    = 'destroy'
#
# restart = 'always'   means >#                            on_reboot   = 'restart'
#                            on_crash    = 'restart'
#
# restart = 'never'    means >#                            on_reboot   = 'destroy'
#                            on_crash    = 'destroy'

#
#on_reboot   = 'restart'
#on_crash    = 'restart'

#============================================================================

# New stuff
device_model = '/usr/' + arch_libdir + '/xen/bin/qemu-dm'

#-----------------------------------------------------------------------------
# boot on floppy (a), hard disk (c), Network (n) or CD-ROM (d) 
# default: hard disk, cd-rom, floppy
#boot="cda"

#-----------------------------------------------------------------------------
#  write to temporary files instead of disk image files
#snapshot=1

#----------------------------------------------------------------------------
# enable SDL library for graphics, default = 0
sdl=0

#----------------------------------------------------------------------------
# enable VNC library for graphics, default = 1
vnc=1

#----------------------------------------------------------------------------
# address that should be listened on for the VNC server if vnc is set.
# default is to use 'vnc-listen' setting from /etc/xen/xend-config.sxp
#vnclisten="127.0.0.1"

#----------------------------------------------------------------------------
# set VNC display number, default = domid
#vncdisplay=1

#----------------------------------------------------------------------------
# try to find an unused port for the VNC server, default = 1
#vncunused=1

#----------------------------------------------------------------------------
# enable spawning vncviewer for domain's console
# (only valid when vnc=1), default = 0
#vncconsole=0

#----------------------------------------------------------------------------
# set password for domain's VNC console
# default is depents on vncpasswd in 
xend-config.sxp
vncpasswd='abc123'

#----------------------------------------------------------------------------
# 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'


#-----------------------------------------------------------------------------
#   Qemu Monitor, default is disable
#   Use ctrl-alt-2 to connect
#monitor=1


#-----------------------------------------------------------------------------
#   enable sound card support, [sb16|es1370|all|..,..], default none
#soundhw='sb16'


#-----------------------------------------------------------------------------
#    set the real time clock to local time [default=0 i.e. set to utc]
#localtime=1


#-----------------------------------------------------------------------------
#    set the real time clock offset in seconds [default=0 
i.e. same as dom0]
#rtc_timeoffset=3600

#-----------------------------------------------------------------------------
#    start in full screen
#full-screen=1   


#-----------------------------------------------------------------------------
#   Enable USB support (specific devices specified at runtime through the
#                       monitor window)
#usb=1

#   Enable USB mouse support (only enable one of the following, `mouse' for
#                             PS/2 protocol relative mouse, `tablet' for
#                             absolute mouse)
#usbdevice='mouse'
#usbdevice='tablet'

#-----------------------------------------------------------------------------
#   Set keyboard layout, default is en-us keyboard. 
#keymap='ja'

xmexample.hvm
Description: Binary data

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