Re: [Haskell-cafe] Stack overflow in ghci
On 10/17/07, Maurício [EMAIL PROTECTED] wrote: Hi, I get this error message when testing a function in ghci: *** Exception: stack overflow I admit I didn't care about efficiency when I wrote that function, but I'm almost sure it is not supposed to eat all my memory. Do I need to say something to ghci if I want it to use all available memory? You can start ghci with the -K option to increase the stack size -- ghci +RTS -K256m -RTS for example, sets the maximum stack size to 256 MB. However, stack overflows are usually (though not always) a sign of buggy code, as they're often caused by infinite recursion, and you want to be notified of that sooner rather than later. Cheers, Tim -- Tim Chevalier * catamorphism.org * Often in error, never in doubt Live fast, love hard, and wear corrective lenses if you need them. --Webb Wilder ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Stack overflow in ghci
On 10/17/07, Maurício [EMAIL PROTECTED] wrote: Hi, I get this error message when testing a function in ghci: *** Exception: stack overflow I admit I didn't care about efficiency when I wrote that function, but I'm almost sure it is not supposed to eat all my memory. Do I need to say something to ghci if I want it to use all available memory? Thanks, Maurício This can also be caused by some code which is more lazy than necessary, if a huge thunk (= unevaluated expression) is generated which blows the stack when it is evaluated. You may want to read this page: http://haskell.org/haskellwiki/Stack_overflow You should also feel free to send the code causing trouble to this list, and someone can help you figure out what is going on. -Brent ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Stack overflow in ghci
--- Tomasz Zielonka [EMAIL PROTECTED] wrote: On Thu, Sep 02, 2004 at 08:47:51AM -0700, Ron de Bruijn wrote: I heard of the +RTS option. I used: ghci SomeModule.hs -someoptions +RTS -K150, but this doesn't seem to have any effect. Try +RTS -K150M. -K150 means 150 bytes. Best regards, Tom -- .signature: Too many levels of symbolic links Ok, it works. I thought the K was equivalent to 1000, but the first K doesn't have that meaning. Thanks. __ Do you Yahoo!? Yahoo! Mail is new and improved - Check it out! http://promotions.yahoo.com/new_mail ___ Haskell-Cafe mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell-cafe
