Description of problem:

  * Using libvirt/qemu/kvm on Fedora 11 x86_64 (8 process)
  * Two symptoms ...
    * a previously installed "Windows Server 2008 64-bit" machine I'll
      call VM_1 no longer works and bluescreens during startup
      (was installed under Fedora 11 libvirt/qemu)
    * an attempt to install a new "Windows Server 2008 64-bit" machine
      I'll call VM_2 does not work and bluescreens in the same
      way as the previously existing machine ... I'll call this
      VM_2 (again, attempt is with Fedora 11 libvirt/qemu)
  * Both these VMs were installed in past or were to be installed
    from Windows media listed here:
      [_MASTER_ root@porta01 ~]# virsh dumpxml JanelazChefe_aV1 | grep '.iso'
          <source file='/opt/standard_downloads/ThirdParty/Microsoft/OperatingSystems/en_windows_server_2008_datacenter_enterprise_standard_without_hyperv_x64_dvd_X14-27010.iso'/>
      [_MASTER_ root@porta01 ~]#
  * A Windows XP VM (not sure whether 32-bit or 64-bit, I believe
    32-bit) did not suffer same badness after upgrade to
    Fedora 11's kernel/libvirt/qemu at some point

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

    [_MASTER_ root@porta01 ~]# rpm -qa | egrep "(kernel|libvirt|qemu|kvm)" | sort
    kernel-2.6.30.10-105.fc11.x86_64   <-- others installed, this is the one in use
    kernel-firmware-2.6.30.10-105.fc11.noarch
    libvirt-0.6.2-19.fc11.x86_64
    libvirt-python-0.6.2-19.fc11.x86_64
    qemu-0.10.6-9.fc11.x86_64
    qemu-common-0.10.6-9.fc11.x86_64
    qemu-img-0.10.6-9.fc11.x86_64
    qemu-kvm-0.10.6-9.fc11.x86_64
    qemu-system-m68k-0.10.6-9.fc11.x86_64
    qemu-system-mips-0.10.6-9.fc11.x86_64
    qemu-system-ppc-0.10.6-9.fc11.x86_64
    qemu-system-sh4-0.10.6-9.fc11.x86_64
    qemu-system-sparc-0.10.6-9.fc11.x86_64
    qemu-system-x86-0.10.6-9.fc11.x86_64
    qemu-user-0.10.6-9.fc11.x86_64
    [_MASTER_ root@porta01 ~]#

How reproducible:

    Always reproducible

Steps to Reproduce:
1. Make sure above components installed
2. Make sure have previously good running Windows Server 2008 64-bit VM
3. Define new attempted Windows Server 2008 64-bit VM
4. Use hardware KVM acceleration
5. Try to start up previously good VM or run new VM
6. Get bluescreen
   (NOTE:  sample VM definition below)
  
Actual results:

  Get bluescreen with "STOP: 0x0000005C ..." message

Expected results:

  VM's should run


Additional info:

=== SAMPLE VIRTUAL MACHINE SPEC ===

[_MASTER_ root@porta01 ~]# virsh dumpxml AzosrWaipio_aV2
<!-- NOTE:  using 'F12' at bootup to manually switch to CD/DVD
     boot instead of hard drive for case where trying to install
     Windows OS -->
<domain type='kvm'>
  <name>AzosrWaipio_aV2</name>
  <uuid>bla bla bla</uuid>
  <memory>786432</memory>
  <currentMemory>786432</currentMemory>
  <vcpu>1</vcpu>  <!-- NOTE:  even happens in single-CPU case -->
  <os>
    <type arch='x86_64' machine='pc'>hvm</type>
    <boot dev='hd'/>  <!-- NOTE:  manually switching to DVD bootup if trying to install -->
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
  </features>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-kvm</emulator> <!-- using KVM -->
    <disk type='block' device='disk'>
      <source dev='/dev/NoRaidVolGroupC/AzosrWaipio_aV2_RootFs'/>
      <target dev='hda' bus='ide'/>
    </disk>
    <disk type='file' device='cdrom'>
      <source file='/opt/standard_downloads/ThirdParty/Microsoft/OperatingSystems/en_windows_server_2008_datacenter_enterprise_standard_without_hyperv_x64_dvd_X14-27010.iso'/>
      <target dev='hdc' bus='ide'/>
      <readonly/>
    </disk>
    <interface type='network'>
      <mac address='54:52:00:13:dc:61'/>
      <source network='azosr'/>
      <target dev='vnet0'/>
    </interface>
    <input type='mouse' bus='ps2'/>
    <graphics type='vnc' port='-1' autoport='yes' keymap='en-us'/>
  </devices>
</domain>
[_MASTER_ root@porta01 ~]#