overflow error in geospatial data - on cyclone compute nodes

[duncan <duncan@…>]

doing a test all on cyclone nodes (node 20 and 15), I get the following error;

WARNING: File test_advection.py to be excluded from testing
..............................................................E................. ................................................................................ ................................................................................ ................................................................................ ................................................................................ ............................................................sh: line 1: svn: com mand not found
................................................................................ ..................................................
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ERROR: test if the results from spilt are disjoin sets
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Traceback (most recent call last):
  File "geospatial_data/test_geospatial_data.py", line 1647, in test_split
    G1, G2  = G.split(factor) #will return G1 with 10% for points and G2 with 90 %
  File "/d/cit/1/dgray/sandpit/anuga/anuga_core/source/anuga/geospatial_data/geo spatial_data.py", line 643, in split
    remainder_list.pop(i)
OverflowError: long int too large to convert to int

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Ran 590 tests in 55.476s

I don't get the error on the head node though (or anywhere else).