KVM Plugin - Remove USB Device from VM not possible

Peppa123 · Aug 2nd 2022

I am using a windows vm and attached actually three usb devices to vm. When I try di remove one usb device from vm an error message is thrown from virsh on command line.

Failed to remove USB device.

error: Failed to detach device from /tmp/virsh_usbn4uXED

error: XML Fehler: Invalid value for attribute 'id' in element 'vendor': '0x'. Expected integer value

virsh detach-device --domain Server-HP --file '/tmp/virsh_usbn4uXED' --persistent --config

OMV\Exception: Failed to remove USB device.

error: Failed to detach device from /tmp/virsh_usbn4uXED

error: XML Fehler: Invalid value for attribute 'id' in element 'vendor': '0x'. Expected integer value

virsh detach-device --domain Server-HP --file '/tmp/virsh_usbn4uXED' --persistent --config in /usr/share/openmediavault/engined/rpc/kvm.inc:2543

Stack trace:

#0 /usr/share/openmediavault/engined/rpc/kvm.inc(1798): OMVRpcServiceKvm->virshCommand(Array, 'Failed to remov...')

#1 [internal function]: OMVRpcServiceKvm->removeUsb(Array, Array)

#2 /usr/share/php/openmediavault/rpc/serviceabstract.inc(123): call_user_func_array(Array, Array)

#3 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod('removeUsb', Array, Array)

#4 /usr/sbin/omv-engined(537): OMV\Rpc\Rpc::call('Kvm', 'removeUsb', Array, Array, 1)

#5 {main}

Seems some problem on plugin creating command line skript.

Is it generally possible to remove usb device on running kvm vm? Actually I shutdown VM but removing is still not possible. May be manually removing from vm xml file will be successfull.

ryecoaaron · Aug 2nd 2022

Quote from Peppa123

Is it generally possible to remove usb device on running kvm vm?

Yes. Did you add the usb device with the plugin? It is evidently parsing the usb device incorrectly. Can you post the VM's xml?

Peppa123 · Aug 2nd 2022

Quote from ryecoaaron

Yes. Did you add the usb device with the plugin? It is evidently parsing the usb device incorrectly. Can you post the VM's xml?

Yes actually all three devices are added via kvm plugin gui. As I needed the vm I manually removed from XML File the entry for this usb device and I could start my vm again.

I will test again and send you the VM xml and try to reproduce the issue.

Peppa123 · Aug 2nd 2022

Attached you will find my XML File from the VM. Tested once again and online removal of usb device is not possible. Seems that the constucted xml file has some missing data for the complete pci string for the usb device:

Code

<hostdev mode="subsystem" type="usb" managed="yes"><source><vendor id="0x"/><product id="0x"/></source></hostdev>

Failed to remove USB device.

error: Failed to detach device from /tmp/virsh_usb6TsZpF

error: XML Fehler: Invalid value for attribute 'id' in element 'vendor': '0x'. Expected integer value

virsh detach-device --domain Server-HP --file '/tmp/virsh_usb6TsZpF' --persistent --config --live

OMV\Exception: Failed to remove USB device.

error: Failed to detach device from /tmp/virsh_usb6TsZpF

error: XML Fehler: Invalid value for attribute 'id' in element 'vendor': '0x'. Expected integer value

virsh detach-device --domain Server-HP --file '/tmp/virsh_usb6TsZpF' --persistent --config --live in /usr/share/openmediavault/engined/rpc/kvm.inc:2543

Stack trace:

#0 /usr/share/openmediavault/engined/rpc/kvm.inc(1798): OMVRpcServiceKvm->virshCommand(Array, 'Failed to remov...')

#1 [internal function]: OMVRpcServiceKvm->removeUsb(Array, Array)

#2 /usr/share/php/openmediavault/rpc/serviceabstract.inc(123): call_user_func_array(Array, Array)

#3 /usr/share/php/openmediavault/rpc/rpc.inc(86): OMV\Rpc\ServiceAbstract->callMethod('removeUsb', Array, Array)

#4 /usr/sbin/omv-engined(537): OMV\Rpc\Rpc::call('Kvm', 'removeUsb', Array, Array, 1)

#5 {main}

ryecoaaron · Aug 2nd 2022

It is failing to parse the vendor id. I'm guessing something is weird with your usb device. What is the output of: sudo lsusb

Peppa123 · Aug 2nd 2022

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

Bus 001 Device 011: ID 041e:3125 Creative Technology, Ltd Creative Bluetooth Audio W2

Bus 001 Device 004: ID 0922:0020 Dymo-CoStar Corp. LabelWriter 450

Bus 001 Device 003: ID 051d:0002 American Power Conversion Uninterruptible Power Supply

Bus 001 Device 021: ID 05e3:0732 Genesys Logic, Inc. All-in-One Cardreader

Bus 001 Device 020: ID 05ac:12a8 Apple, Inc. iPhone 5/5C/5S/6/SE

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

ryecoaaron · Aug 2nd 2022

What do the entries in your dropdown when removing the USB devices look like?

Peppa123 · Aug 2nd 2022

Here is a screenshot.

ryecoaaron · Aug 2nd 2022

Unfortunately, that all looks right. What is the output of: sudo tail /var/log/omv-virsh-command.log

Peppa123 · Aug 2nd 2022

That is the error message I wrote already above

Code

root@fj-db-omv6:~# sudo tail /var/log/omv-virsh-command.log
[2022-08-02 11:26:11] Failed to remove USB device.
error: Failed to detach device from /tmp/virsh_usbPPD6E8
error: XML Fehler: Invalid value for attribute 'id' in element 'vendor': '0x'. Expected integer value
virsh detach-device --domain Server-HP --file '/tmp/virsh_usbPPD6E8' --persistent --config
[2022-08-02 14:49:51] export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C.UTF-8; export LANGUAGE=; virsh attach-device --domain Server-HP --file '/tmp/virsh_usbUp0LI6' --persistent --config --live 2>&1
[2022-08-02 15:21:57] export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin; export LANG=C.UTF-8; export LANGUAGE=; virsh detach-device --domain Server-HP --file '/tmp/virsh_usb6TsZpF' --persistent --config --live 2>&1
[2022-08-02 15:21:57] Failed to remove USB device.
error: Failed to detach device from /tmp/virsh_usb6TsZpF
error: XML Fehler: Invalid value for attribute 'id' in element 'vendor': '0x'. Expected integer value
virsh detach-device --domain Server-HP --file '/tmp/virsh_usb6TsZpF' --persistent --config --live

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ryecoaaron · Aug 2nd 2022

I will have to try this on my server when I get home. Hopefully I reproduce this.

Peppa123 · Aug 2nd 2022

Ok thankx, actually I can't remove any USB Device from running VM via KVM GUI Plugin. Tried with all three devices. Error stays the same. Manually editing XML Files still the only solution.

ryecoaaron · Aug 2nd 2022

Not sure what broke then. You could use virt-manager or virsh too. The plugin uses virsh but somehow the vendor id is not making it from the dropdown to the virsh call.

ryecoaaron · Aug 2nd 2022

Removing usb devices should work in 6.1.22 in the repo now.

Peppa123 · Aug 4th 2022

Yes I saw that you uploaded new plugin version with the fix. Tested it and it worked on my installation / vm konfig.

hoppel118 · Dec 23rd 2022

Hi, I have the same issue.

Yesterday I setup a VM with Home Assistant Operating System. So far so good. Now I attached my Home Assistant SkyConnect USB Stick (ZigBee/Thread Connectivity) via the KVM Plugin and it was recognized in the VM.

But I am absolutely new to Home Assistant. So I worked with Snapshots. After some misconfiguration I went the route to go back to an earlier snapshot of that vm. But I had another issue and decided to delete the vm including its snapshots and recreated the vm with the qcow2 file.

But now its not possible to add the Home Assistant SkyConnect again. I see messages like the following in a red box:

Code

500 - Internal Server Error
Failed to add USB device. error: Failed to attach device from /tmp/virsh_usbXQcqvY error: Angeforderte Operation ist nicht gültig: Einheit ist bereits in der Domain Konfiguration vorhanden virsh attach-device --domain haos --file '/tmp/virsh_usbXQcqvY' --persistent --config --live

Code

root@omv6:~# cat /tmp/virsh_usbXQcqvY

<hostdev mode="subsystem" type="usb" managed="yes"><source><vendor id="0x10c4"/><product id="0xea60"/></source></hostdev>

It is this devices:

Code

lsusb
...
Bus 001 Device 004: ID 10c4:ea60 Silicon Labs CP210x UART Bridge
...

My vm.xml looks as follows:

Code

cat /etc/libvirt/qemu/haos.xml 
<!--
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 haos
or other application using the libvirt API.
-->

<domain type='kvm'>
  <name>haos</name>
  <uuid>27543c90-c5c9-4efa-81f8-6edf38ee0d2c</uuid>
  <metadata>
    <libosinfo:libosinfo xmlns:libosinfo="http://libosinfo.org/xmlns/libvirt/domain/1.0">
      <libosinfo:os id="http://debian.org/debian/10"/>
    </libosinfo:libosinfo>
  </metadata>
  <memory unit='KiB'>8388608</memory>
  <currentMemory unit='KiB'>8388608</currentMemory>
  <vcpu placement='static'>2</vcpu>
  <os>
    <type arch='x86_64' machine='pc-q35-7.1'>hvm</type>
    <loader type='rom'>/usr/share/OVMF/OVMF_CODE.fd</loader>
    <boot dev='hd'/>
    <boot dev='cdrom'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <vmport state='off'/>
  </features>
  <cpu mode='host-passthrough' check='none' migratable='on'>
    <topology sockets='1' dies='1' cores='2' threads='1'/>
  </cpu>
  <clock offset='utc'>
    <timer name='rtc' tickpolicy='catchup'/>
    <timer name='pit' tickpolicy='delay'/>
    <timer name='hpet' present='no'/>
  </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/bin/qemu-system-x86_64</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='none' io='native'/>
      <source file='/data/vm/haos_ova-9.4.qcow2'/>
      <target dev='vda' bus='virtio'/>
      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
    </disk>
    <controller type='usb' index='0' model='qemu-xhci' ports='15'>
      <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
    </controller>
    <controller type='sata' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pcie-root'/>
    <controller type='pci' index='1' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='1' port='0x10'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0' multifunction='on'/>
    </controller>
    <controller type='pci' index='2' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='2' port='0x11'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x1'/>
    </controller>
    <controller type='pci' index='3' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='3' port='0x12'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x2'/>
    </controller>
    <controller type='pci' index='4' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='4' port='0x13'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x3'/>
    </controller>
    <controller type='pci' index='5' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='5' port='0x14'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x4'/>
    </controller>
    <controller type='pci' index='6' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='6' port='0x15'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x5'/>
    </controller>
    <controller type='pci' index='7' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='7' port='0x16'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x6'/>
    </controller>
    <controller type='virtio-serial' index='0'>
      <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
    </controller>
    <interface type='bridge'>
      <mac address='xx:xx:xx:xx:xx:xx'/>
      <source bridge='br0'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' 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>
    <channel type='unix'>
      <target type='virtio' name='org.qemu.guest_agent.0'/>
      <address type='virtio-serial' controller='0' bus='0' port='1'/>
    </channel>
    <channel type='spicevmc'>
      <target type='virtio' name='com.redhat.spice.0'/>
      <address type='virtio-serial' controller='0' bus='0' port='2'/>
    </channel>
    <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='vnc' port='-1' autoport='yes' listen='0.0.0.0'>
      <listen type='address' address='0.0.0.0'/>
    </graphics>
    <graphics type='spice' autoport='yes' listen='0.0.0.0'>
      <listen type='address' address='0.0.0.0'/>
      <image compression='off'/>
    </graphics>
    <sound model='ich9'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1b' function='0x0'/>
    </sound>
    <audio id='1' type='spice'/>
    <video>
      <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
    </video>
    <hostdev mode='subsystem' type='usb' managed='yes'>
      <source>
        <vendor id='0x10c4'/>
        <product id='0xea60'/>
      </source>
      <address type='usb' bus='0' port='4'/>
    </hostdev>
    <redirdev bus='usb' type='spicevmc'>
      <address type='usb' bus='0' port='2'/>
    </redirdev>
    <redirdev bus='usb' type='spicevmc'>
      <address type='usb' bus='0' port='3'/>
    </redirdev>
    <memballoon model='virtio'>
      <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
    </memballoon>
    <rng model='virtio'>
      <backend model='random'>/dev/urandom</backend>
      <address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
    </rng>
  </devices>
</domain>

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What exactly do I have to change or delete in the vm.xml file? The relevant part seems to be this:

Code

    <hostdev mode='subsystem' type='usb' managed='yes'>
      <source>
        <vendor id='0x10c4'/>
        <product id='0xea60'/>
      </source>
      <address type='usb' bus='0' port='4'/>
    </hostdev>

Is it as simple as removing the complete part or only parts of it?

Thanks Hoppel

hoppel118 · Dec 24th 2022

Hm...

So I did the following:

stop the vm
deleted the following part of the vm.xml

Code

    <hostdev mode='subsystem' type='usb' managed='yes'>
      <source>
        <vendor id='0x10c4'/>
        <product id='0xea60'/>
      </source>
      <address type='usb' bus='0' port='4'/>
    </hostdev>

--> It doesn't work! Still the same issue:

Code

500 - Internal Server Error
Failed to add USB device. error: Failed to attach device from /tmp/virsh_usbIsJpae error: Angeforderte Operation ist nicht gültig: Einheit ist bereits in der Domain Konfiguration vorhanden virsh attach-device --domain haos --file '/tmp/virsh_usbIsJpae' --persistent --config --live

Code

cat /tmp/virsh_usbIsJpae 

<hostdev mode="subsystem" type="usb" managed="yes"><source><vendor id="0x10c4"/><product id="0xea60"/></source></hostdev>

So, I decided to try the following:

stop the vm
deleted the snapshots of the vm
ls /etc/libvirt/qemu/ the file vm.xml is not there anymore
recreated my vm with the same qcow2 file
added the usb stick -> YEAH!!!! THIS WORKS!!!!
started the vm -> Yes, it works!

Anyway, thanks!

ryecoaaron · Dec 24th 2022

You probably should always delete snapshots when adding hardware.

hoppel118 · Dec 24th 2022

Will check that, when I see this message again. Thanks.

Merry Christmas!

KVM Plugin - Remove USB Device from VM not possible

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