Description of problem: If Task.prepare error handler fails, and dispatcher error handler fails, the real error is hidden by an AttributeError due to wrong argument name. Version-Release number of selected component (if applicable): 4.15.0 or later. How reproducible: Not reproducible without modifying the code. Reported by pylint.
Fixed upstream, this is very unlikely so I'm not sure we need this in 4.1, but backport is trivial. Tal, do you want to backport this?
No need for a backport
Verifying after reviewed the patch and according to "Not reproducible without modifying the code." in comment #0
This bugzilla is included in oVirt 4.2.0 release, published on Dec 20th 2017. Since the problem described in this bug report should be resolved in oVirt 4.2.0 release, published on Dec 20th 2017, it has been closed with a resolution of CURRENT RELEASE. If the solution does not work for you, please open a new bug report.