Bug 1074298

Check on RHEVM - 3.3.2 (IS35.1)
Migration ended successfully* between the following vdsm versions:

3.2 - 3.3.0  
3.3.0 - 3.2   *(with errors - look below)
3.2 - 3.3.0-3  
3.3.0 - 3.2   *(with errors - look below)
3.3.0 - 3.3.0-3 
3.3.0-3 - 3.3.0








* Migration between vdsm 3.3.0 to vdsm 3.2 succeeded, but the following errors appeared in vdsm.log (full vdsm.log is attached): 

libvirtEventLoop::ERROR::2014-03-30 15:34:42,038::libvirtconnection::91::vds::(__eventCallback) Error running VM callback
Traceback (most recent call last):
  File "/usr/lib64/python2.6/site-packages/vdsm/libvirtconnection.py", line 67, in __eventCallback
    v._onLibvirtLifecycleEvent(event, detail, None)
  File "/usr/share/vdsm/libvirtvm.py", line 3033, in _onLibvirtLifecycleEvent
    hooks.after_vm_cont(self._dom.XMLDesc(0), self.conf)
AttributeError: 'NoneType' object has no attribute 'XMLDesc'
libvirtEventLoop::DEBUG::2014-03-30 15:34:42,111::libvirtvm::3003::vm.Vm::(_onLibvirtLifecycleEvent) vmId=`449e7bb9-070f-43e0-9ae8-a9d344dadbf6`::event Resumed detail 1 opaque None
Thread-400::DEBUG::2014-03-30 15:34:42,194::utils::346::vm.Vm::(start) vmId=`449e7bb9-070f-43e0-9ae8-a9d344dadbf6`::Start statistics collection
Thread-404::DEBUG::2014-03-30 15:34:42,194::utils::375::vm.Vm::(run) vmId=`449e7bb9-070f-43e0-9ae8-a9d344dadbf6`::Stats thread started
Thread-404::DEBUG::2014-03-30 15:34:42,196::task::568::TaskManager.Task::(_updateState) Task=`77048e13-41f3-4c00-b8fc-6e01fa80d862`::moving from state init -> state preparing
Thread-404::INFO::2014-03-30 15:34:42,196::logUtils::37::dispatcher::(wrapper) Run and protect: getVolumeSize(sdUUID='65f5eb98-b119-464f-a71e-6902957c5c4e', spUUID='9cf4d589-6cb3-46ba-847f-ba074fdb4ae8', imgUUID='aa19aba0-4ae3-4096-9b72-70a7d53ff045', volUUID='b149b182-e839-4843-b685-086b7c9518a2', options=None)
MainProcess|Thread-400::ERROR::2014-03-30 15:34:42,196::supervdsmServer::81::SuperVdsm.ServerCallback::(wrapper) Error in prepareVmChannel
Traceback (most recent call last):
  File "/usr/share/vdsm/supervdsmServer.py", line 79, in wrapper
    return func(*args, **kwargs)
  File "/usr/share/vdsm/supervdsmServer.py", line 159, in prepareVmChannel
    mode = os.stat(socketFile).st_mode | stat.S_IWGRP
OSError: [Errno 2] No such file or directory: '/var/lib/libvirt/qemu/channels/32-2.com.redhat.rhevm.vdsm'
Thread-404::DEBUG::2014-03-30 15:34:42,199::fileVolume::574::Storage.Volume::(validateVolumePath) validate path for b149b182-e839-4843-b685-086b7c9518a2
Thread-404::INFO::2014-03-30 15:34:42,200::logUtils::39::dispatcher::(wrapper) Run and protect: getVolumeSize, Return response: {'truesize': '0', 'apparentsize': '2147483648'}
Thread-404::DEBUG::2014-03-30 15:34:42,200::task::1151::TaskManager.Task::(prepare) Task=`77048e13-41f3-4c00-b8fc-6e01fa80d862`::finished: {'truesize': '0', 'apparentsize': '2147483648'}
Thread-404::DEBUG::2014-03-30 15:34:42,200::task::568::TaskManager.Task::(_updateState) Task=`77048e13-41f3-4c00-b8fc-6e01fa80d862`::moving from state preparing -> state finished
Thread-404::DEBUG::2014-03-30 15:34:42,201::resourceManager::809::ResourceManager.Owner::(releaseAll) Owner.releaseAll requests {} resources {}
Thread-404::DEBUG::2014-03-30 15:34:42,201::resourceManager::844::ResourceManager.Owner::(cancelAll) Owner.cancelAll requests {}
Thread-404::DEBUG::2014-03-30 15:34:42,201::task::957::TaskManager.Task::(_decref) Task=`77048e13-41f3-4c00-b8fc-6e01fa80d862`::ref 0 aborting False
Thread-400::ERROR::2014-03-30 15:34:42,197::guestIF::103::vm.Vm::(__init__) vmId=`449e7bb9-070f-43e0-9ae8-a9d344dadbf6`::Failed to prepare vmchannel
Traceback (most recent call last):
  File "/usr/share/vdsm/guestIF.py", line 101, in __init__
    self._prepare_socket()
  File "/usr/share/vdsm/guestIF.py", line 113, in _prepare_socket
    supervdsm.getProxy().prepareVmChannel(self._socketName)
  File "/usr/share/vdsm/supervdsm.py", line 76, in __call__
    return callMethod()
  File "/usr/share/vdsm/supervdsm.py", line 67, in <lambda>
    **kwargs)
  File "<string>", line 2, in prepareVmChannel
  File "/usr/lib64/python2.6/multiprocessing/managers.py", line 740, in _callmethod
    raise convert_to_error(kind, result)
OSError: [Errno 2] No such file or directory: '/var/lib/libvirt/qemu/channels/32-2.com.redhat.rhevm.vdsm'



Moving to VERIFIED, Federico, can you please look at the errors?

This bug is currently attached to errata RHBA-2014:17276. If this change is not to be documented in the text for this errata please either remove it from the errata, set the requires_doc_text flag to minus (-), or leave a "Doc Text" value of "--no tech note required" if you do not have permission to alter the flag.

Otherwise to aid in the development of relevant and accurate release documentation, please fill out the "Doc Text" field above with these four (4) pieces of information:

* Cause: What actions or circumstances cause this bug to present.

* Consequence: What happens when the bug presents.

* Fix: What was done to fix the bug.

* Result: What now happens when the actions or circumstances above occur. (NB: this is not the same as 'the bug doesn't present anymore')

Once filled out, please set the "Doc Type" field to the appropriate value for the type of change made and submit your edits to the bug.

For further details on the Cause, Consequence, Fix, Result format please refer to:

https://bugzilla.redhat.com/page.cgi?id=fields.html#cf_release_notes

Thanks in advance.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2014-0392.html