[Gdal-dev] Failed to acquire IOMutex in WarpRegion()

[matt wilkie]

Hi,

Does anyone know what this message means and what to do about it?

 gdalwarp -wm 512 -co bigtiff=yes -multi --optfile tiff-w144-list.txt
warp-mosaic-orig-nvue_w144.tif

Creating output file that is 43221P x 54021L.
Processing input file N60-W144_ur.tif.
0...10ERROR 1: Failed to acquire IOMutex in WarpRegion().

where tiff-w144list.txt is a list of 5 input rasters of 1.2gb each,
projection wgs84,  21621 x 18021 pixels.

This is on WinXPsp2 64bit system with 4gb of ram and 150gb free disk space,
and GDAL 1.5.0b1, FWTools 2.0.3, released 2007/12/10. 

thanks,

-matt
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