[GRASS-dev] [bug #5397] (grass) r.terraflow: false WARNING and Aborted; tcltk's GUI tabs are corrupted

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this bug's URL: http://intevation.de/rt/webrt?serial_num=5397
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Subject: r.terraflow: false WARNING and Aborted; tcltk's GUI tabs are corrupted

GRASS 6.3 CVS 18.12.2006

r.terraflow (called like in [1]) crashes on some input rasters' (see [2] for
error message). I don't know what is the pattern. I happened to create such a
raster by doing:

$ g.region n=5678875 s=5675775 w=596850 e=598800 res=25 -a

$ r.mapcalc 'surf=-(cos(col())*row()+sin(col())*row())+250'

There is nothing really special about the raster 'surf' created as above. It
is DCELL, with range 74.637518 - 248.982700, very small (78 cols X 124 rows).
Different rasters of the same size, DCELL as well as CELL, do not make
r.terraflow crash. I couldn't reproduce the crash with spearfish data either. 

Please can somebody say why the raster created as above crashes r.terraflow?
Note the crash doesn't happen always (most of the time though). Sometimes if
r.terraflow with syntax like in [1] is called 3 or 20 times it finally starts
working and completes (although the false "WARNING: grid larger than memory
(ignored)" is still issued even then).

Using  

Maciek


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