Comment 19 for bug 545486

Had a look at giobackend.py, and I guess the error came up because the exception handler expects the iterator counter n to be in scope, but it's not. The bigger problem, however, is that the exception occurred -- which I suppose has to mean that the write failed multiple times.

Any idea why it would at this point? The backup had been running for somewhere approaching 18 hours by then without problem. Is the retry cumulative across the entire execution or is it per write?