id summary reporter owner description type status priority milestone component version resolution keywords cc cpu platform 545 r.cost warning on negative values pcav grass-dev@… "In case ov even a few negative values, r.cost fails badly (running forever). If the cost map contains any negative values, it should either generate a fatal error, or treat such cells as nulls (exclude them or use the null_cost= value) and generate a warning. Thanks Glynn for the hint." defect closed major 6.4.3 Raster 6.3.0 fixed r.cost Unspecified Unspecified