While debugging a multi-threaded app I attempt to use printf's to watch the blocked thread's progress. Even if I do fflush(stdout) the output sometimes does not appear. Any suggestions on how to force this output to appear? TIA -- Best regards, David Stroupe Keyed-Up Software -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ IRC Channel: irc.openprojects.net / #kernelnewbies Web Page: http://www.kernelnewbies.org/