[CentOS-virt] Using the parallel port from domU

[Manuel Wolfshant]

    Just for the record: due to lack of time (I am really really under 
pressure and I do not have the time to compile the xen version from 5.3 
), I have switched to a custom built xen-3.3.0 and it works as it should.

    Manuel

Manuel Wolfshant wrote:
> Hello
>
>    I use xen and I am trying to use the parallel port of Centos 5.2 
> host from a Windows XP (HVM) guest. I have tried to transfer control 
> of the port by blacklisting lp, parport and parport_pc + adding:
>    ioports = [ "0378-037a" ]
> to the xen configuration file.
>
>    However, in the presence of this line, xm create replies with:
>
> Error: function takes exactly 4 arguments (3 given)
>
>    In xend.log I see:
> [2009-02-02 15:36:34 xend.XendDomainInfo 6246] DEBUG 
> (XendDomainInfo:1603) XendDomainInfo.destroy: domid=13
> [2009-02-02 15:36:34 xend 6246] ERROR (xmlrpclib2:184) function takes 
> exactly 4 arguments (3 given)
> Traceback (most recent call last):
>  File "/usr/lib64/python2.4/site-packages/xen/util/xmlrpclib2.py", 
> line 162, in _marshaled_dispatch
>    response = self._dispatch(method, params)
>  File "/usr/lib64/python2.4/SimpleXMLRPCServer.py", line 406, in 
> _dispatch
>    return func(*params)
>  File 
> "/usr/lib64/python2.4/site-packages/xen/xend/server/XMLRPCServer.py", 
> line 64, in domain_create
>    info = XendDomain.instance().domain_create(config)
>  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomain.py", 
> line 238, in domain_create
>    dominfo = XendDomainInfo.create(config)
>  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", 
> line 205, in create
>    vm.initDomain()
>  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", 
> line 1507, in initDomain
>    self.createDevices()
>  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", 
> line 1716, in createDevices
>    self.createDevice(n, c)
>  File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", 
> line 1189, in createDevice
>    return self.getDeviceController(deviceClass).createDevice(devconfig)
>  File 
> "/usr/lib64/python2.4/site-packages/xen/xend/server/DevController.py", 
> line 80, in createDevice
>    (devid, back, front) = self.getDeviceDetails(config)
>  File "/usr/lib64/python2.4/site-packages/xen/xend/server/iopif.py", 
> line 78, in getDeviceDetails
>    allow_access = True)
> TypeError: function takes exactly 4 arguments (3 given)
>
>
>    Except of a bug from 2007 and which should be fixed for a long time 
> (and which is only PARTIALLY included in xen as available in 5.2), I 
> have not found anything. I did apply the unapplied part of 
> http://bugs.centos.org/file_download.php?file_id=474&type=bug but 
> there is no change.
>
>    Any ideas ?
>    TIA
>
>                               manuel
>


-- 
     Manuel Wolfshant       linux registered user #131416
        IT manager    NoBug Consulting SRL
  A: Yes.
  >Q: Are you sure?
  >>A: Because it reverses the logical flow of conversation.
  >>>Q: Why is top posting frowned upon?