Re: [Qemu-discuss] Blue screen error on windows server 2008 and 2012

[Dominique Ramaekers]

I have bad experiences with Windows and changing the CPU or disk configurations. Windows doesn’t seem to handle that well.

 

I now always use the redhad virtual cpu (<model fallback='allow'>cpu64-rhel6</model>). This way, I always can change the guest from host without de guest having to deal with (virtual)hardware changes.

 

For most of the appliances, the the rhel-cpu is sufficient.

 

 

 

Van: Qemu-discuss [mailto:qemu-discuss-bounces+address@hidden Namens John Y.
Verzonden: zondag 9 oktober 2016 3:21
Aan: address@hidden
Onderwerp: [Qemu-discuss] Blue screen error on windows server 2008 and 2012

 

I have two hosts.

 

Host A:  

Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz

2CPUS

10 cores and 2 thread per cpu.

 

Host B:

Intel(R) Xeon(R) CPU  L5520  @ 2.27GHz

2CPUS

4 cores and 2 thread per cpu.

 

In host B, I run a windows 2012 vm , double click a exe file inside vm and I got a blue screen error.

 

error code : KMODE_EXCEPTION_NOT_HANDLED

 

I use the same image to create a vm in host A, I can open the exe file inside vm and everything is ok.

 

I had try:

1. use "<cpu mode="host-model"/>" instead of "<cpu mode="host-passthrough"/> "

2. use qemu2.5 instead of /usr/libexec/qemu-kvm(1.5.3)

 

Any idea?

 

Host :

Linux hostA 4.2.0-1.el7.elrepo.x86_64

 

#virsh version

Compiled against library: libvirt 1.2.8

Using library: libvirt 1.2.8

Using API: QEMU 1.2.8

Running hypervisor: QEMU 1.5.3

 

 

#cat libvirl.xml

 

<domain xmlns:qemu="http://libvirt.org/schemas/domain/qemu/1.0" type="kvm">  

  <name>test</name>  

  <description>test</description>  

  <os> 

    <type>hvm</type>  

    <boot dev="hd"/> 

  </os>  

  <features> 

    <acpi/> 

  </features>  

  <clock offset="localtime"/>  

  <on_poweroff>destroy</on_poweroff>  

  <on_reboot>restart</on_reboot>  

  <on_crash>destroy</on_crash>  

  <vcpu current="2">2</vcpu>  

  <cpu mode="host-passthrough"/>  

  <memory>2097152</memory>  

  <currentMemory>2097152</currentMemory>  

  <devices> 

    <emulator/>  

    <disk device="disk" type="file"> 

      <driver name="qemu" type="qcow2" cache="none"/>  

      <source file="/home/test.qcow2"/>  

      <target bus="virtio" dev="vda"/> 

    </disk>  

    <disk type="file" device="cdrom"> 

      <source dev=""/>  

      <target dev="hdc" bus="ide"/> 

    </disk>  

    <serial type="pty"> 

      <source path="/dev/pts/1"/>  

      <target port="0"/> 

    </serial>  

    <input type="tablet" bus="usb"/>  

    <input type="mouse" bus="ps2"/>  

    <graphics type="vnc" port="-1" autoport="yes" keymap="en-us" listen="0.0.0.0"/>  

    <channel type="unix">

      <source mode="bind" path="/var/lib/libvirt/qemu/test.org.qemu.guest_agent.0"/>

      <target type="virtio" name="org.qemu.guest_agent.0"/>

    </channel>

  </devices>  

  <qemu:commandline></qemu:commandline> 

</domain>

 

 

# qemu-img info /home/test.qcow2

image: /home/test.qcow2

file format: qcow2

virtual size: 50G (53687091200 bytes)

disk size: 0

cluster_size: 65536

backing file: /home/windows2012.raw

Format specific information:

    compat: 1.1

    lazy refcounts: false

 

 

Thanks,

John