[ovirt-users] hostusb with ovirt3.6

Michal Skrivanek michal.skrivanek at redhat.com
Fri Nov 13 12:29:04 UTC 2015


> On 13 Nov 2015, at 13:21, Alexandr Krivulya <shuriku at shurik.kiev.ua> wrote:
> 
> 12.11.15 21:29, Alexandr Krivulya пишет:
>> Hello,
>> after upgrade to 3.6 virtual machine with hostusb vdsm hook attached cannot be started:

there shouldn’t be a reason for a hook in 3.6, there’s a full support for usb passthrough in UI.
though it shouldn’t break just by upgrade to 3.6…Martin?

>> 
>> Thread-2194::ERROR::2015-11-12 21:21:16,527::vm::751::virt.vm::(_startUnderlyingVm) vmId=`ec7cde24-ac17-453c-a0d3-1873993b80e1`::The vm start process failed
>> Traceback (most recent call last):
>>   File "/usr/share/vdsm/virt/vm.py", line 695, in _startUnderlyingVm
>>     self._run()
>>   File "/usr/share/vdsm/virt/vm.py", line 1876, in _run
>>     self._domDependentInit()
>>   File "/usr/share/vdsm/virt/vm.py", line 1733, in _domDependentInit
>>     self._getUnderlyingVmDevicesInfo()
>>   File "/usr/share/vdsm/virt/vm.py", line 1682, in _getUnderlyingVmDevicesInfo
>>     self._getUnderlyingHostDeviceInfo()
>>   File "/usr/share/vdsm/virt/vm.py", line 4106, in _getUnderlyingHostDeviceInfo
>>     if device_type == 'usb':
>>   File "/usr/share/vdsm/virt/vm.py", line 4092, in _getUnderlyingHostDeviceUSBInfo
>>     for dev in self.conf['devices']:
>> UnboundLocalError: local variable 'device' referenced before assignment
>> Thread-2194::INFO::2015-11-12 21:21:16,546::vm::1278::virt.vm::(setDownStatus) vmId=`ec7cde24-ac17-453c-a0d3-1873993b80e1`::Changed state to Down: local variable 'device' referenced before assignment (code=1)
>> 
>> Corresponding xml entry present in vm start config:
>> 
>>         <hostdev mode="subsystem" type="usb"><source><vendor id="0x14a8"/><product id="0x0001"/></source></hostdev></devices>
>> 
>> 
> 
> Dirty hack solves issue (I'm far away from python):
> 
> --- vm.py.orig  2015-11-13 14:14:37.152170286 +0200
> +++ vm.py       2015-11-13 14:13:47.387855814 +0200
> @@ -4103,7 +4103,7 @@
>          for x in self._domain.get_device_elements('hostdev'):
>              device_type = x.getAttribute('type')
>              if device_type == 'usb':
> -                self._getUnderlyingHostDeviceUSBInfo(x)
> +#                self._getUnderlyingHostDeviceUSBInfo(x)
>                  continue
>              alias = x.getElementsByTagName('alias')[0].getAttribute('name')
>              address = self._getUnderlyingDeviceAddress(x)
> 
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