Description of problem:

It will take more than one hour to create a qemu guest through "virt-install" command (without "----accelerate") on RHEL5.7.


Version-Release number of selected component (if applicable):

libvirt-0.8.2-20.el5
libvirt-python-0.8.2-20.el5
kvm-83-232.el5

How reproducible:

Always

Steps to Reproduce:
1.create a guest and make sure it can be started/stopped/ normally.
image path is /var/lib/libvirt/images/w2k3-kvm2.img 

2.stop and undefine this guest 
# virsh destroy w2k3-kvm2
# virsh undefine w2k3-kvm2     

3. try to create a guest with w2k3-kvm2.img through "virt-install"

# virt-install -n vm1 -r 1024 -f /var/lib/libvirt/images/w2k3-kvm2.img  --importimg  --import --debug
Wed, 18 May 2011 15:15:24 DEBUG    Requesting libvirt URI default
Wed, 18 May 2011 15:15:24 DEBUG    Received libvirt URI 'qemu:///system'
Wed, 18 May 2011 15:15:24 DEBUG    Requesting virt method 'default'
Wed, 18 May 2011 15:15:24 DEBUG    Received virt method 'hvm'
Wed, 18 May 2011 15:15:24 DEBUG    Hypervisor name is 'qemu'
Wed, 18 May 2011 15:15:24 DEBUG    Setting size for existing storage to '7.8125'
Wed, 18 May 2011 15:15:24 DEBUG    Detected storage as type 'file'
Wed, 18 May 2011 15:15:24 DEBUG    Setting size for existing storage to '7.8125'
Wed, 18 May 2011 15:15:24 DEBUG    Detected storage as type 'file'
Wed, 18 May 2011 15:15:24 DEBUG    Setting size for existing storage to '7.8125'
Wed, 18 May 2011 15:15:24 DEBUG    Detected storage as type 'file'
Wed, 18 May 2011 15:15:24 DEBUG    DISPLAY is set: graphics defaulting to VNC.


Starting install...
Wed, 18 May 2011 15:15:24 DEBUG    Saving XML boot config:
<domain type='qemu'>
  <name>vm1</name>
  <currentMemory>1048576</currentMemory>
  <memory>1048576</memory>
  <uuid>57687424-4900-4f92-a939-984690e0dd2b</uuid>
  <os>
    <type arch='x86_64'>hvm</type>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/><apic/><pae/>
  </features>
  <clock offset="utc"/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <vcpu>1</vcpu>
  <devices>
    <emulator>/usr/libexec/qemu-kvm</emulator>
    <console type='pty'/>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw' cache='none'/>
      <source file='/var/lib/libvirt/images/w2k3-kvm2.img'/>
      <target dev='hda' bus='ide'/>
    </disk>
    <interface type='network'>
      <source network='default'/>
      <mac address='54:52:00:0a:ff:fc'/>
    </interface>
    <input type='mouse' bus='ps2'/>
    <graphics type='vnc' port='-1' keymap='en-us'/>
  </devices>
</domain>

Guest installation complete... restarting guest.
Wed, 18 May 2011 15:15:25 DEBUG    Restarted guest, looking to see if it is running
Wed, 18 May 2011 15:15:25 DEBUG    Launching console callback
connect : Connection refused
...................

4. installation process is held on the virt viewer screen and no any feedback more than 1 hour

5. interrupted the step4 after 1 hour and undefine the crash guest. 

6. recreate it by "virt-install" with "----accelerate". The guest can be created quickly.

# virt-install -n vm1 -r 1024 -f /var/lib/libvirt/images/w2k3-kvm2.img --import --accelerate


  
Actual results:

The result of step4.

Expected results:

Enhance the performance for "virt-install" without "----accelerate"


Additional info: