[Qemu-devel] [Bug 1654271] Re: host machine freezes

[Thomas Huth]

Moving this to the Ubuntu-qemu bug tracker since you're apparently using
Ubuntu's QEMU, not the upstream QEMU.

** Project changed: qemu => qemu (Ubuntu)

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https://bugs.launchpad.net/bugs/1654271

Title:
  host machine freezes

Status in qemu package in Ubuntu:
  New

Bug description:
  When trying to install Radeon crimson relive 16.12.1, each host machine 
freezes at the machine environment check stage.
  Even if you launch the installer in an environment where GPU is not 
installed, each host machine freezes in the same way.
  When Gusest's CPU is changed from 4 to 1, the environment check is completed 
normally.
  Even if FMA and AVX 2 are invalidated by CPU setting, environment check will 
be completed normally.
  Since 1 CPU does not freeze, I thought that it would be better to fix the 
CPU, but I will still freeze.
  Is it impossible to enable the function of AVX 2 (FMA?) In the virtual 
machine on KVM?

  HOST
    Motherboard ： Asrock Z97 extream6
    CPU          : Core i7-4790
    Memory       : 24GB
    OS           : Ubuntu 16.04(kernel 4.7.2-040702)
    qemu         : 2.5+dfsg-5ubuntu10.6
    libvirt      : 1.3.1-1ubuntu10.5
    ovmf         : 0~20160408.ffea0a2c-2

  Guest
  　BIOS   : UEFI
    OS     : Windows10 Pro Build 14986
    Memory : 8GB
    GPU    : Radeon HD7770

  -----------------------------------------------------------
  <domain type='kvm'>
    <name>WinPC01</name>
    <uuid>4f784d78-4d5e-416a-bb43-82ecd2cad409</uuid>
    <memory unit='KiB'>8388608</memory>
    <currentMemory unit='KiB'>8388608</currentMemory>
    <vcpu placement='static'>4</vcpu>
    <os>
      <type arch='x86_64' machine='pc-i440fx-2.5'>hvm</type>
      <loader readonly='yes' type='pflash'>/usr/share/OVMF/OVMF_CODE.fd</loader>
      <nvram>/var/lib/libvirt/qemu/nvram/WinPC01_VARS.fd</nvram>
      <bootmenu enable='yes'/>
    </os>
    <features>
      <acpi/>
      <apic/>
      <pae/>
      <hap/>
      <hyperv>
        <relaxed state='on'/>
        <vapic state='on'/>
        <spinlocks state='on' retries='8191'/>
      </hyperv>
      <kvm>
        <hidden state='on'/>
      </kvm>
    </features>
    <cpu mode='custom' match='exact'>
      <model fallback='allow'>Haswell</model>
      <vendor>Intel</vendor>
      <topology sockets='1' cores='4' threads='1'/>
    </cpu>
    <clock offset='localtime'>
      <timer name='rtc' tickpolicy='catchup'/>
      <timer name='pit' tickpolicy='delay'/>
      <timer name='hpet' present='no'/>
      <timer name='hypervclock' present='yes'/>
    </clock>
    <on_poweroff>destroy</on_poweroff>
    <on_reboot>restart</on_reboot>
    <on_crash>restart</on_crash>
    <pm>
      <suspend-to-mem enabled='no'/>
      <suspend-to-disk enabled='no'/>
    </pm>
    <devices>
      <emulator>/usr/bin/kvm-spice</emulator>
      <disk type='block' device='disk'>
        <driver name='qemu' type='raw' cache='none' io='native' 
discard='unmap'/>
        <source dev='/dev/mapper/vg_yoshi--kvm01_ssd-lv_WinPC01'/>
        <target dev='sda' bus='scsi'/>
        <boot order='1'/>
        <address type='drive' controller='0' bus='0' target='0' unit='0'/>
      </disk>
      <disk type='block' device='disk'>
        <driver name='qemu' type='raw' cache='none' io='native'/>
        <source dev='/dev/mapper/vg_yoshi--kvm01_hdd-lv_WinPC01_Data'/>
        <target dev='sdb' bus='scsi'/>
        <address type='drive' controller='0' bus='0' target='0' unit='1'/>
      </disk>
      <disk type='file' device='cdrom'>
        <driver name='qemu' type='raw'/>
        <target dev='hdb' bus='ide'/>
        <readonly/>
        <address type='drive' controller='0' bus='0' target='0' unit='1'/>
      </disk>
      <controller type='usb' index='0' model='ich9-ehci1'>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x05' 
function='0x7'/>
      </controller>
      <controller type='usb' index='0' model='ich9-uhci1'>
        <master startport='0'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x05' 
function='0x0' multifunction='on'/>
      </controller>
      <controller type='usb' index='0' model='ich9-uhci2'>
        <master startport='2'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x05' 
function='0x1'/>
      </controller>
      <controller type='usb' index='0' model='ich9-uhci3'>
        <master startport='4'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x05' 
function='0x2'/>
      </controller>
      <controller type='pci' index='0' model='pci-root'/>
      <controller type='ide' index='0'>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x01' 
function='0x1'/>
      </controller>
      <controller type='virtio-serial' index='0'>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x06' 
function='0x0'/>
      </controller>
      <controller type='sata' index='0'>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x0c' 
function='0x0'/>
      </controller>
      <controller type='scsi' index='0' model='virtio-scsi'>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x0f' 
function='0x0'/>
      </controller>
      <interface type='bridge'>
        <mac address='52:54:00:0e:ca:c5'/>
        <source bridge='br0'/>
        <model type='virtio'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x03' 
function='0x0'/>
      </interface>
      <interface type='bridge'>
        <mac address='52:54:00:7e:4e:dd'/>
        <source bridge='br1'/>
        <model type='virtio'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x04' 
function='0x0'/>
      </interface>
      <channel type='spicevmc'>
        <target type='virtio' name='com.redhat.spice.0'/>
        <address type='virtio-serial' controller='0' bus='0' port='1'/>
      </channel>
      <input type='tablet' bus='usb'/>
      <input type='mouse' bus='ps2'/>
      <input type='keyboard' bus='ps2'/>
      <graphics type='spice' port='5900' autoport='no' listen='0.0.0.0' 
keymap='ja'>
        <listen type='address' address='0.0.0.0'/>
      </graphics>
      <video>
        <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x02' 
function='0x0'/>
      </video>
      <hostdev mode='subsystem' type='pci' managed='yes'>
        <source>
          <address domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
        </source>
        <rom bar='off'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x08' 
function='0x0' multifunction='on'/>
      </hostdev>
      <hostdev mode='subsystem' type='pci' managed='yes'>
        <source>
          <address domain='0x0000' bus='0x01' slot='0x00' function='0x1'/>
        </source>
        <rom bar='off'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x09' 
function='0x0'/>
      </hostdev>
      <hostdev mode='subsystem' type='pci' managed='yes'>
        <source>
          <address domain='0x0000' bus='0x00' slot='0x14' function='0x0'/>
        </source>
        <rom bar='off'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' 
function='0x0'/>
      </hostdev>
      <hostdev mode='subsystem' type='pci' managed='yes'>
        <source>
          <address domain='0x0000' bus='0x00' slot='0x1d' function='0x0'/>
        </source>
        <rom bar='off'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x0b' 
function='0x0'/>
      </hostdev>
      <memballoon model='virtio'>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x07' 
function='0x0'/>
      </memballoon>
    </devices>
  </domain>
  -----------------------------------------------------------

  If you put the following designation in the CPU tag, it will not freeze.
  -----------------------------------------------------------
      <feature policy='disable' name='fma'/>
      <feature policy='disable' name='avx2'/>
  -----------------------------------------------------------

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