ralf schmitt zsobrpgmailcom flush fails programs fails recognize ie program assumes data written disk isnt would program fail recognize look result returned sorry everything else raises error documented far see mmapflush returns 0 unix succeeds raises exception unix fails windows returns 1 succeeds 0 doesnt one time unix returns 0 succeeds regards ralf agree fairly unpythonic also think data loss may cause applications fault thu 07 aug 2008 180744 0200 pythondev needsreview keyword