[Qemu-devel] [Bug 1435359] Re: Booting kernel 3.19.2 fails most of the time
Ok, thanks, so I'm closing this now. ** Changed in: qemu Status: Incomplete => Fix Released -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1435359 Title: Booting kernel 3.19.2 fails most of the time Status in QEMU: Fix Released Bug description: Host system: openSuSE 13.2 + kernel 4.0.0-rc4 + qemu 2.2.1. When I try to boot a virtual machine with Ubuntu 14.10 and kernel 3.13.0 every boot succeeds. However, with kernel 3.19.2 booting fails most of the time. The following appears in /var/log/libvirt/qemu /ubuntu-vm.log when I try to boot that VM with kernel 3.19.2: 2015-03-23 02:44:18.801+: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin QEMU_AUDIO_DRV=spice /usr/bin/qemu-system-x86_64 -name ubuntu-vm -S -machine pc-i440fx-2.1,accel=kvm,usb=off -cpu Haswell -m 2048 -realtime mlock=off -smp 4,sockets=4,cores=1,threads=1 -uuid 395110dc-9fbe-4542-8fce-4ef958f24b2c -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/ubuntu-vm.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=0x5.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x5 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x5.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x5.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x4 -drive file=/var/lib/libvirt/images/ubuntusaucy.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 file=/var/lib/libvirt/images/ubuntu-14.04-mini.iso,if=none,id=drive-ide0-0-0,readonly=on,format=raw -device ide-cd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=2 -netdev tap,fd=22,id=hostnet0,vhost=on,vhostfd=23 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:5e:71:5e,bus=pci.0,addr=0x3 -chardev spicevmc,id=charchannel0,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0 -spice port=5900,addr=127.0.0.1,disable-ticketing,seamless-migration=on -device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,bus=pci.0,addr=0x2 -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 -chardev spicevmc,id=charredir2,name=usbredir -device usb-redir,chardev=charredir2,id=redir2 -chardev spicevmc,id=charredir3,name=usbredir -device usb-redir,chardev=charredir3,id=redir3 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x8 -object rng-random,id=rng0,filename=/dev/random -device virtio-rng-pci,rng=rng0,bus=pci.0,addr=0x9 -msg timestamp=on main_channel_link: add main channel client main_channel_handle_parsed: net test: latency 0.229000 ms, bitrate 284 bps (27126.736111 Mbps) red_dispatcher_set_cursor_peer: inputs_connect: inputs channel client create ((null):30728): SpiceWorker-ERROR **: red_worker.c:8337:red_marshall_qxl_drawable: invalid type KVM: injection failed, MSI lost (Input/output error) qemu-system-x86_64: /home/bart/software/qemu-2.2.1/hw/net/vhost_net.c:264: vhost_net_stop_one: Assertion `r >= 0' failed. 2015-03-23 02:44:44.952+: shutting down That message is similar to the message reported by the older qemu version provided by openSuse (qemu 2.1.0 + qemu-kvm 2.1.0): 2015-03-21 13:51:00.724+: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin QEMU_AUDIO_DRV=spice /usr/bin/qemu-system-x86_64 -name ubuntu-vm -S -machine pc-i440fx-2.1,accel=kvm,usb=off -cpu Haswell -m 1024 -realtime mlock=off -smp 4,sockets=4,cores=1,threads=1 -uuid 395110dc-9fbe-4542-8fce-4ef958f24b2c -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/ubuntu-vm.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=0x5.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr =0x5 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x5.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x5.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 -drive file=/var/lib/libvirt/images/ubuntusaucy.qcow2,if=none,id=drive-virtio-disk0,format=qcow2 -device
[Qemu-devel] [Bug 1435359] Re: Booting kernel 3.19.2 fails most of the time
I haven't seen this for a long time so please proceed with closing this ticket. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1435359 Title: Booting kernel 3.19.2 fails most of the time Status in QEMU: Incomplete Bug description: Host system: openSuSE 13.2 + kernel 4.0.0-rc4 + qemu 2.2.1. When I try to boot a virtual machine with Ubuntu 14.10 and kernel 3.13.0 every boot succeeds. However, with kernel 3.19.2 booting fails most of the time. The following appears in /var/log/libvirt/qemu /ubuntu-vm.log when I try to boot that VM with kernel 3.19.2: 2015-03-23 02:44:18.801+: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin QEMU_AUDIO_DRV=spice /usr/bin/qemu-system-x86_64 -name ubuntu-vm -S -machine pc-i440fx-2.1,accel=kvm,usb=off -cpu Haswell -m 2048 -realtime mlock=off -smp 4,sockets=4,cores=1,threads=1 -uuid 395110dc-9fbe-4542-8fce-4ef958f24b2c -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/ubuntu-vm.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=0x5.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x5 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x5.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x5.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x4 -drive file=/var/lib/libvirt/images/ubuntusaucy.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 file=/var/lib/libvirt/images/ubuntu-14.04-mini.iso,if=none,id=drive-ide0-0-0,readonly=on,format=raw -device ide-cd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=2 -netdev tap,fd=22,id=hostnet0,vhost=on,vhostfd=23 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:5e:71:5e,bus=pci.0,addr=0x3 -chardev spicevmc,id=charchannel0,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0 -spice port=5900,addr=127.0.0.1,disable-ticketing,seamless-migration=on -device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,bus=pci.0,addr=0x2 -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 -chardev spicevmc,id=charredir2,name=usbredir -device usb-redir,chardev=charredir2,id=redir2 -chardev spicevmc,id=charredir3,name=usbredir -device usb-redir,chardev=charredir3,id=redir3 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x8 -object rng-random,id=rng0,filename=/dev/random -device virtio-rng-pci,rng=rng0,bus=pci.0,addr=0x9 -msg timestamp=on main_channel_link: add main channel client main_channel_handle_parsed: net test: latency 0.229000 ms, bitrate 284 bps (27126.736111 Mbps) red_dispatcher_set_cursor_peer: inputs_connect: inputs channel client create ((null):30728): SpiceWorker-ERROR **: red_worker.c:8337:red_marshall_qxl_drawable: invalid type KVM: injection failed, MSI lost (Input/output error) qemu-system-x86_64: /home/bart/software/qemu-2.2.1/hw/net/vhost_net.c:264: vhost_net_stop_one: Assertion `r >= 0' failed. 2015-03-23 02:44:44.952+: shutting down That message is similar to the message reported by the older qemu version provided by openSuse (qemu 2.1.0 + qemu-kvm 2.1.0): 2015-03-21 13:51:00.724+: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin QEMU_AUDIO_DRV=spice /usr/bin/qemu-system-x86_64 -name ubuntu-vm -S -machine pc-i440fx-2.1,accel=kvm,usb=off -cpu Haswell -m 1024 -realtime mlock=off -smp 4,sockets=4,cores=1,threads=1 -uuid 395110dc-9fbe-4542-8fce-4ef958f24b2c -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/ubuntu-vm.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=0x5.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr =0x5 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x5.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x5.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 -drive file=/var/lib/libvirt/images/ubuntusaucy.qcow2,if=none,id=drive-virtio-disk0,format=qcow2 -device
[Qemu-devel] [Bug 1435359] Re: Booting kernel 3.19.2 fails most of the time
Triaging old bug tickets... can you still reproduce this issue with the latest version of QEMU? Or could we close this ticket nowadays? ** Changed in: qemu Status: New => Incomplete -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1435359 Title: Booting kernel 3.19.2 fails most of the time Status in QEMU: Incomplete Bug description: Host system: openSuSE 13.2 + kernel 4.0.0-rc4 + qemu 2.2.1. When I try to boot a virtual machine with Ubuntu 14.10 and kernel 3.13.0 every boot succeeds. However, with kernel 3.19.2 booting fails most of the time. The following appears in /var/log/libvirt/qemu /ubuntu-vm.log when I try to boot that VM with kernel 3.19.2: 2015-03-23 02:44:18.801+: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin QEMU_AUDIO_DRV=spice /usr/bin/qemu-system-x86_64 -name ubuntu-vm -S -machine pc-i440fx-2.1,accel=kvm,usb=off -cpu Haswell -m 2048 -realtime mlock=off -smp 4,sockets=4,cores=1,threads=1 -uuid 395110dc-9fbe-4542-8fce-4ef958f24b2c -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/ubuntu-vm.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=0x5.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x5 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x5.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x5.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x4 -drive file=/var/lib/libvirt/images/ubuntusaucy.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 file=/var/lib/libvirt/images/ubuntu-14.04-mini.iso,if=none,id=drive-ide0-0-0,readonly=on,format=raw -device ide-cd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=2 -netdev tap,fd=22,id=hostnet0,vhost=on,vhostfd=23 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:5e:71:5e,bus=pci.0,addr=0x3 -chardev spicevmc,id=charchannel0,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0 -spice port=5900,addr=127.0.0.1,disable-ticketing,seamless-migration=on -device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,bus=pci.0,addr=0x2 -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 -chardev spicevmc,id=charredir2,name=usbredir -device usb-redir,chardev=charredir2,id=redir2 -chardev spicevmc,id=charredir3,name=usbredir -device usb-redir,chardev=charredir3,id=redir3 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x8 -object rng-random,id=rng0,filename=/dev/random -device virtio-rng-pci,rng=rng0,bus=pci.0,addr=0x9 -msg timestamp=on main_channel_link: add main channel client main_channel_handle_parsed: net test: latency 0.229000 ms, bitrate 284 bps (27126.736111 Mbps) red_dispatcher_set_cursor_peer: inputs_connect: inputs channel client create ((null):30728): SpiceWorker-ERROR **: red_worker.c:8337:red_marshall_qxl_drawable: invalid type KVM: injection failed, MSI lost (Input/output error) qemu-system-x86_64: /home/bart/software/qemu-2.2.1/hw/net/vhost_net.c:264: vhost_net_stop_one: Assertion `r >= 0' failed. 2015-03-23 02:44:44.952+: shutting down That message is similar to the message reported by the older qemu version provided by openSuse (qemu 2.1.0 + qemu-kvm 2.1.0): 2015-03-21 13:51:00.724+: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin QEMU_AUDIO_DRV=spice /usr/bin/qemu-system-x86_64 -name ubuntu-vm -S -machine pc-i440fx-2.1,accel=kvm,usb=off -cpu Haswell -m 1024 -realtime mlock=off -smp 4,sockets=4,cores=1,threads=1 -uuid 395110dc-9fbe-4542-8fce-4ef958f24b2c -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/ubuntu-vm.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=0x5.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr =0x5 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x5.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x5.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 -drive
[Qemu-devel] [Bug 1435359] Re: Booting kernel 3.19.2 fails most of the time
The following patch might fix this (I have not yet tested this patch myself): https://lkml.org/lkml/2015/7/5/217 -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1435359 Title: Booting kernel 3.19.2 fails most of the time Status in QEMU: New Bug description: Host system: openSuSE 13.2 + kernel 4.0.0-rc4 + qemu 2.2.1. When I try to boot a virtual machine with Ubuntu 14.10 and kernel 3.13.0 every boot succeeds. However, with kernel 3.19.2 booting fails most of the time. The following appears in /var/log/libvirt/qemu /ubuntu-vm.log when I try to boot that VM with kernel 3.19.2: 2015-03-23 02:44:18.801+: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin QEMU_AUDIO_DRV=spice /usr/bin/qemu-system-x86_64 -name ubuntu-vm -S -machine pc-i440fx-2.1,accel=kvm,usb=off -cpu Haswell -m 2048 -realtime mlock=off -smp 4,sockets=4,cores=1,threads=1 -uuid 395110dc-9fbe-4542-8fce-4ef958f24b2c -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/ubuntu-vm.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=0x5.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x5 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x5.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x5.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x4 -drive file=/var/lib/libvirt/images/ubuntusaucy.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 file=/var/lib/libvirt/images/ubuntu-14.04-mini.iso,if=none,id=drive-ide0-0-0,readonly=on,format=raw -device ide-cd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=2 -netdev tap,fd=22,id=hostnet0,vhost=on,vhostfd=23 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:5e:71:5e,bus=pci.0,addr=0x3 -chardev spicevmc,id=charchannel0,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0 -spice port=5900,addr=127.0.0.1,disable-ticketing,seamless-migration=on -device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,bus=pci.0,addr=0x2 -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 -chardev spicevmc,id=charredir2,name=usbredir -device usb-redir,chardev=charredir2,id=redir2 -chardev spicevmc,id=charredir3,name=usbredir -device usb-redir,chardev=charredir3,id=redir3 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x8 -object rng-random,id=rng0,filename=/dev/random -device virtio-rng-pci,rng=rng0,bus=pci.0,addr=0x9 -msg timestamp=on main_channel_link: add main channel client main_channel_handle_parsed: net test: latency 0.229000 ms, bitrate 284 bps (27126.736111 Mbps) red_dispatcher_set_cursor_peer: inputs_connect: inputs channel client create ((null):30728): SpiceWorker-ERROR **: red_worker.c:8337:red_marshall_qxl_drawable: invalid type KVM: injection failed, MSI lost (Input/output error) qemu-system-x86_64: /home/bart/software/qemu-2.2.1/hw/net/vhost_net.c:264: vhost_net_stop_one: Assertion `r = 0' failed. 2015-03-23 02:44:44.952+: shutting down That message is similar to the message reported by the older qemu version provided by openSuse (qemu 2.1.0 + qemu-kvm 2.1.0): 2015-03-21 13:51:00.724+: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin QEMU_AUDIO_DRV=spice /usr/bin/qemu-system-x86_64 -name ubuntu-vm -S -machine pc-i440fx-2.1,accel=kvm,usb=off -cpu Haswell -m 1024 -realtime mlock=off -smp 4,sockets=4,cores=1,threads=1 -uuid 395110dc-9fbe-4542-8fce-4ef958f24b2c -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/ubuntu-vm.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=0x5.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr =0x5 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x5.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x5.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 -drive file=/var/lib/libvirt/images/ubuntusaucy.qcow2,if=none,id=drive-virtio-disk0,format=qcow2 -device