id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc 4174,"gdal_retile - test failing, pyramids maybe wrong?",warmerdam,warmerdam,"I am getting failures of the checksum for test_gdal_retile.py - test 2 - on 32bit linux (Debug build). Examining the results the expected result (which I get on win32) is as follows (band 1 translated to AAIGRID format for convenience): {{{ ncols 5 nrows 5 xllcorner 500000.000000000000 yllcorner 4499800.000000000000 cellsize 40.000000000000 0 0 0 0 0 0 255 255 0 0 0 255 255 0 0 0 0 0 0 0 0 0 0 0 0 }}} While on linux I am getting: {{{ ncols 5 nrows 5 xllcorner 500000.000000000000 yllcorner 4499800.000000000000 cellsize 40.000000000000 0 0 0 0 0 0 0 0 0 0 0 255 255 0 0 0 255 255 0 0 0 0 0 0 0 }}} On further examination it appears that the full resolution data has 255 for *all* pixels in band 1. It is not clear to me why the reduced resolution pyramid levels (like tmp/outretile2/2/rgba_1_1.tif) have any zeros in band 1. It seems they also ought to be all 255. I'm not too keen to dig deeply into this today, but I am now generally dubious about the overview generation in gdal_retile.py. ",defect,closed,normal,,Utilities,svn-trunk,normal,fixed,gdal_retile,mcr