Created attachment 914945 [details]
logs from engine and host

Description of problem:
VDSM is unable to refresh the images list for an ISO domain because of an AttributeError for getFileStats

Version-Release number of selected component (if applicable):
vdsm-4.16.0-3.git601f786.el6.x86_64
libvirt-0.10.2-29.el6_5.9.x86_64
qemu-kvm-0.12.1.2-2.415.el6_5.10.x86_64
ovirt-engine-3.5.0-0.0.master.20140629172257.git0b16ed7.el6.noarch


How reproducible:
Always

Steps to Reproduce:
1. Attach NFS ISO domain to the DC


Actual results:

VDSM cannot refresh the ISO domain images list:

Thread-50::ERROR::2014-07-06 12:15:41,782::task::866::Storage.TaskManager.Task::(_setError) Task=`4a49c453-80bb-462a-8550-c2907dba6cc1`::Unexpected error
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/task.py", line 873, in _run
    return fn(*args, **kargs)
  File "/usr/share/vdsm/logUtils.py", line 45, in wrapper
    res = f(*args, **kwargs)
  File "/usr/share/vdsm/storage/hsm.py", line 2299, in getFileStats
    caseSensitive=caseSensitive)
  File "/usr/share/vdsm/storage/fileSD.py", line 285, in getFileList
    self.oop.fileUtils.validateQemuReadable(entry)
AttributeError: '_IOProcessFileUtils' object has no attribute 'validateQemuReadable'


Expected results:
Refresh images list of ISO domain should work

Additional info: logs from engine and host