On 4/27/05, Robert van Herk
It seems that the problem of the spontanious crash in ghci, without an error message, occurs because I use a wrong buffering strategy on a handle:
When I include the line hSetBuffering handle LineBuffering in my program, the program crashes at random moments, without error messages. When I comment it out, it works ok. The handle in the above example is a socket. My program is a web server.
From the Network documentation (http://haskell.org/ghc/docs/latest/html/libraries/network/Network.html): " SIGPIPE
On Unix, when reading from a socket and the writing end is closed by the remote client, the program is normally sent a SIGPIPE signal by the operating system. The default behaviour when a SIGPIPE is received is to terminate the program silently, which can be somewhat confusing if you haven't encountered this before. The solution is to specify that SIGPIPE is to be ignored, using the POSIX library: import Posix main = do installHandler sigPIPE Ignore Nothing; ... " -- Friendly, Lemmih