I did some testing using an ancient DOS port of "od" as my program.exe. On a win98 box running perl 5.8.3, closing WRITEME immediately after printing to WRITEME fixes the problem.

On a win2k box with perl 5.8.4, running the "fixed" program locks up until "od" is manually killed. However, the problem occurs not at the waitpid command, but at the $output = <README>; command.

Try using "perl -d:ptkdb perlprog inputfile" (assumes you have Devel::Ptkdb installed) and step through the program.

In reply to Re^3: IPC:Open2 question by keszler
in thread IPC:Open2 question by lynx

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