I like to forward this message from Haskell-Cafe: ---------- Forwarded message ---------- Date: Fri, 11 Mar 2011 17:04:16 +0100 (CET) From: Daniel Díaz <danieldiaz@asofilak.es> To: haskell-cafe@haskell.org Subject: [Haskell-cafe] Uncatchable error Hi, cafe, I'm working in a program where I use many connections with Network.HTTP. Sometimes, connections are closed while my program is reading them, and an error appears: <socket: XXX>: Data.ByteString.hGetLine: invalid argument (Bad file descriptor) All I need is to handle this error. The function 'catch' doesn't work. I guess this error comes from a call to 'error' function, or something similar. What I can do? Thanks in advance, Daniel Díaz _______________________________________________ It sounds to me that this is not a particular problem of Network.HTTP or Data.ByteString.hGetLine. It would certainly also happen for System.IO.hGetLine applied to a HTTP stream. So how can exceptions about closed HTTP connections be caught and where is it documented? The System.IO functions only mention EOF as possible exception.