New issue 752: Segmentation fault during isocontour extraction https://bitbucket.org/yt_analysis/yt/issue/752/segmentation-fault-during-iso...

Nathan Goldbaum:

I just tried running the following test script:

``` #!python

from yt.mods import * pf = load('DD0000/DD0000') dd = pf.h.disk('c', [0,0,1], (20, 'kpc'), (3, 'kpc')) iso = dd.extract_isocontours('Radiuskpc', 10) ```

I got the following output:

``` [goldbaum@hyades low_resolution_static_subgrids]$ python test.py yt : [INFO ] 2013-12-13 11:48:07,582 Parameters: current_time = 0 yt : [INFO ] 2013-12-13 11:48:07,582 Parameters: domain_dimensions = [64 64 64] yt : [INFO ] 2013-12-13 11:48:07,583 Parameters: domain_left_edge = [ 0. 0. 0.] yt : [INFO ] 2013-12-13 11:48:07,584 Parameters: domain_right_edge = [ 1. 1. 1.] yt : [INFO ] 2013-12-13 11:48:07,584 Parameters: cosmological_simulation = 0.0 Parsing Hierarchy 100% |||||||||||||||||||||||||||||||||||||||||||| Time: 0:00:00 yt : [INFO ] 2013-12-13 11:48:07,592 Gathering a field list (this may take a moment.) Extracting 37% |------------------ | ETA: 0:00:00 Segmentation fault ```

I can upload the data somewhere if that would be helpful. This is on the tip of the stable branch.