[GRASS-user] Windows r.mapcalc crash

Tue Feb 17 02:55:30 PST 2015

Hi,
I am having trouble running r.mapcalc from my osgeo4w installation in GRASS 7. It quits with the following error:
ERROR: G_calloc: unable to allocate 173*1 bytes of memory at lib/gis/flate.c:319

The region is 
Res: 25
Rows: 160
Cols: 160

The grass gis installation is from yesterday. The PC is running W7 64bit and has 8GB memory installed. Any ideas are greatly appreciated. 

Thanks,
Frank