I am playing DoomRL version 0.9.8.9 on Linux Mint. It is basically Ubuntu 7.1
I can run DoomRL windows version using wine with no problems, but I have been trying to use your Linux binary.
The game seems to run fine using the Linux binary. The problem is the game seems to lockup after a few minutes of play. It is usually within the first or second level of the game. I believe it is even close the the same amount of turns each time it freezes.
I usually tell within around ten turns or less of when the game will freeze. First the game will have a few second lag of a command, after that it runs fine for about ten turns. Afterward, it just quits responding. I can't even get escape sequences to work with the terminal when this happens.
Anybody got any ideas, just let me know if you need more info.