[Bug 1843073] Re: Network loose connection for long time under light load guest winxp64 with virtio on i5-8350U

[Thomas Huth]

The QEMU project is currently considering to move its bug tracking to another 
system. For this we need to know which bugs are still valid and which could be 
closed already. Thus we are setting older bugs to "Incomplete" now.
If you still think this bug report here is valid, then please switch the state 
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** Changed in: qemu
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1843073

Title:
  Network loose connection for long time under light load guest winxp64
  with virtio on i5-8350U

Status in QEMU:
  Incomplete

Bug description:
  I have issue with qemu and winxp guest on i5-8350U.

  First of all, if i run same vm with same config on i5 9660k i do not see such 
issue.
  Both pc have ubuntu 19.04 x86_64.

  Guest is winxp64, tried:
  1) stable guest drivers, latest drivers
  2) all virtio, only network r18169, bridge to host eth0, just default virbr0.
  3) qemu from ubuntu 19.04, and tried latest libvirt and qeumu compiled from 
sources.
  4) tried zram as block device

  I need really lightweight win to run only one app, so win7 and win10
  is not an option.

  
  <!--
  WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
  OVERWRITTEN AND LOST. Changes to this xml configuration should be made using:
    virsh edit winxp
  or other application using the libvirt API.
  -->

  <domain type='kvm'>
    <name>winxp</name>
    <uuid>93921ab3-222a-4e5f-89c4-36703fc65cb4</uuid>
    <metadata>
      <libosinfo:libosinfo 
xmlns:libosinfo="http://libosinfo.org/xmlns/libvirt/domain/1.0";>
        <libosinfo:os id="http://microsoft.com/win/xp"/>
      </libosinfo:libosinfo>
    </metadata>
    <memory unit='KiB'>8388608</memory>
    <currentMemory unit='KiB'>8388608</currentMemory>
    <vcpu placement='static'>4</vcpu>
    <cputune>
      <vcpupin vcpu='0' cpuset='2'/>
      <vcpupin vcpu='1' cpuset='3'/>
      <vcpupin vcpu='2' cpuset='6'/>
      <vcpupin vcpu='3' cpuset='7'/>
    </cputune>
    <os>
      <type arch='x86_64' machine='pc-i440fx-4.1'>hvm</type>
    </os>
    <features>
      <acpi/>
      <apic/>
      <hyperv>
        <relaxed state='on'/>
        <vapic state='on'/>
        <spinlocks state='on' retries='8191'/>
        <vpindex state='on'/>
        <synic state='on'/>
        <stimer state='on'/>
      </hyperv>
      <vmport state='off'/>
    </features>
    <cpu mode='host-model' check='partial'>
      <model fallback='allow'/>
    </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>destroy</on_crash>
    <pm>
      <suspend-to-mem enabled='no'/>
      <suspend-to-disk enabled='no'/>
    </pm>
    <devices>
      <emulator>/usr/local/bin/qemu-system-x86_64</emulator>
      <disk type='block' device='disk'>
        <driver name='qemu' type='raw' cache='none' io='native'/>
        <source dev='/dev/zram0'/>
        <target dev='vdb' bus='virtio'/>
        <shareable/>
        <boot order='1'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x08' 
function='0x0'/>
      </disk>
      <disk type='file' device='cdrom'>
        <driver name='qemu' type='raw'/>
        <source file='/var/lib/libvirt/images/virtio-win.iso'/>
        <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='0x07' 
function='0x0'/>
      </controller>
      <interface type='network'>
        <mac address='52:54:00:d1:b3:87'/>
        <source network='default'/>
        <model type='virtio'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x03' 
function='0x0'/>
      </interface>
      <serial type='pty'>
        <target type='isa-serial' port='0'>
          <model name='isa-serial'/>
        </target>
      </serial>
      <console type='pty'>
        <target type='serial' port='0'/>
      </console>
      <input type='tablet' bus='usb'>
        <address type='usb' bus='0' port='1'/>
      </input>
      <input type='mouse' bus='ps2'/>
      <input type='keyboard' bus='ps2'/>
      <graphics type='spice' port='5900' autoport='no' listen='0.0.0.0'>
        <listen type='address' address='0.0.0.0'/>
        <image compression='auto_glz'/>
        <jpeg compression='auto'/>
        <zlib compression='auto'/>
        <playback compression='off'/>
        <streaming mode='off'/>
      </graphics>
      <sound model='ich6'>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x04' 
function='0x0'/>
      </sound>
      <video>
        <model type='vga' vram='16384' heads='1' primary='yes'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x02' 
function='0x0'/>
      </video>
      <memballoon model='virtio'>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x06' 
function='0x0'/>
      </memballoon>
    </devices>
  </domain>

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