[Qemu-devel] [Bug 990364] Re: virtio_ioport_write: unexpected address 0x13 value 0x1

[Szilárd Páll]

I can't add much, except that I started noticing his issue when
migrating my VMs to an Ubuntu Precise server hypervisor where under
(heavy?) load my Win 2008 Server VM started to crash very frequently
with the error showing up in the libvirt log of the VM.

It might be useful information that I ended up moving the VM back to a
Debian Squeeze hypervisor which hosted it originally and things were
running smoothly until earlier today when a crash with the same message
happened again. What's sure is that under Squeeze the issue is far-far
less frequent, on Precise the VM got reset a dozen times during the
first 48 h, while on Squeeze it's been running fine even under heavy
load for weeks without a hiccup.

Details of the Precise hypervisor:
kvm: 1:84+dfsg-0ubuntu16+1.0+noroms+0ubuntu14.3
qemu-kvm: 1.0+noroms-0ubuntu14.3
kernel: 3.2.0-32-generic
(tested with virtio drivers virtio-win-0.1-15.iso and virtio-win-0.1-30.iso)

Details of the Squeeze hypervisor:
kvm: 1:0.12.5+dfsg-5+squeeze8
qemu-kvm: 0.12.5+dfsg-5+squeeze8
kernel: 2.6.32-5-amd64
(tested with virtio drivers virtio-win-0.1-15.iso)

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https://bugs.launchpad.net/bugs/990364

Title:
  virtio_ioport_write: unexpected address 0x13 value 0x1

Status in QEMU:
  New

Bug description:
  Hello! I have:

  virtio_ioport_write: unexpected address 0x13 value 0x1

  on config:

  LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin 
QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-0.12 -cpu qemu32 -enable-kvm -m 3072 
-smp 1 -name nata_xp -uuid da607499-1d8f-e7ef-d1d2-38
  1c1839e4ba -chardev 
socket,id=monitor,path=/var/lib/libvirt/qemu/nata_xp.monitor,server,nowait 
-monitor chardev:monitor -localtime -boot c -drive 
file=/root/nata_xp.qcow2,if=virtio,index=0,boot=on,format=raw
  ,cache=none -drive 
file=/home/admino/virtio-win-0.1-22.iso,if=ide,media=cdrom,index=2,format=raw 
-net nic,macaddr=00:16:36:06:02:69,vlan=0,model=virtio,name=virtio.0 -net 
tap,fd=43,vlan=0,name=tap.0 -serial
  none -parallel none -usb -usbdevice tablet -vnc 127.0.0.1:3 -k en-us -vga 
cirrus
  pci_add_option_rom: failed to find romfile "pxe-virtio.bin"

  with kernel 2.6.32-40-generic #87-Ubuntu SMP Tue Mar 6 00:56:56 UTC 2012 
x86_64 GNU/Linux
  qemu drivers are virtio-win-0.1-22.iso
  kvm version 1:84+dfsg-0ubuntu16+0.12.3+noroms+0ubuntu9.18
  qemu 0.12.3+noroms-0ubuntu9.18

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