[Qemu-devel] [Bug 1606899] Re: virtio-vga does not let guest poweroff properly

[Laszlo Ersek \(Red Hat\)]

Does the issue persist if you remove the intel-hda device (id=sound0)
and the dependent hda-duplex device (id=sound0-codec0)?

Asking because of <http://lists.nongnu.org/archive/html/qemu-
devel/2016-07/msg06283.html>.

If it persists, then please capture a stack dump with gdb, when QEMU is
hung. (Not that I'll look at it, but it will help whoever will look at
it.) Thanks.

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Title:
  virtio-vga does not let guest poweroff properly

Status in QEMU:
  New

Bug description:
  I have a VM running rawhide (Fedora development) and I can't poweroff
  the machine when I enable virtio-vga. Reboot works correctly. Using
  QXL works also. The machine arrive to print the "Powering off" message
  (from Linux kernel) but then hangs.

  The command line is

  /usr/bin/qemu-system-x86_64 -machine accel=kvm -name rawhide -machine
  pc-i440fx-2.3,accel=kvm,usb=off -cpu Haswell-noTSX -m 2048 -realtime
  mlock=off -smp 2,sockets=2,cores=1,threads=1 -uuid
  64216421-aec4-4ce4-aa52-aed9e4e31a1c -no-user-config -nodefaults
  -chardev
  socket,id=charmonitor,path=/var/lib/libvirt/qemu/rawhide.monitor,server,nowait
  -mon chardev=charmonitor,id=monitor,mode=control -rtc
  base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-
  hpet -no-shutdown -global PIIX4_PM.disable_s3=1 -global
  PIIX4_PM.disable_s4=1 -boot strict=on -device ich9-usb-
  ehci1,id=usb,bus=pci.0,addr=0x6.0x7 -device ich9-usb-
  uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x6
  -device ich9-usb-
  uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x6.0x1 -device ich9
  -usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x6.0x2 -device
  virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x5 -drive
  file=/home/rawhide.qcow2,if=none,id=drive-virtio-disk0,format=qcow2
  -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x7,drive=drive-virtio-
  disk0,id=virtio-disk0,bootindex=1 -drive if=none,id=drive-
  ide0-0-0,readonly=on -device ide-cd,bus=ide.0,unit=0,drive=drive-
  ide0-0-0,id=ide0-0-0 -netdev user,id=hostnet0 -device virtio-net-
  pci,netdev=hostnet0,id=net0,mac=52:54:00:fc:11:43,bus=pci.0,addr=0x3
  -chardev pty,id=charserial0 -device isa-
  serial,chardev=charserial0,id=serial0 -chardev
  
socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/rawhide.org.qemu.guest_agent.0,server,nowait
  -device virtserialport,bus=virtio-
  serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0
  -chardev spicevmc,id=charchannel1,name=vdagent -device
  virtserialport,bus=virtio-
  serial0.0,nr=2,chardev=charchannel1,id=channel1,name=com.redhat.spice.0
  -device usb-tablet,id=input0 -spice ipv4,addr=0.0.0.0,port=5900
  ,disable-ticketing,image-compression=lz,seamless-migration=on
  ,streaming-video=filter -device virtio-vga,bus=pci.0,addr=0x2 -device
  intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-
  duplex,id=sound0-codec0,bus=sound0.0,cad=0 -chardev
  spicevmc,id=charredir0,name=usbredir -device usb-
  redir,chardev=charredir0,id=redir0 -chardev
  spicevmc,id=charredir1,name=usbredir -device usb-
  redir,chardev=charredir1,id=redir1 -device virtio-balloon-
  pci,id=balloon0,bus=pci.0,addr=0x8 -msg timestamp=on

  I though was due to Virgl but disabling it does not change.

  I'm using Qemu 2.6.0 from Fedora 24.

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