Simon Marlow wrote:
On 14 December 2004 10:46, Arjen van Weelden wrote:
I compiled a Haskell 98 program using ghc 6.2 -O and ran the executable, using main +RTS -H256m -s, on two similar computers:
PC 1: Athlon 1400, 512MB, Windows XP Prof SP2 (successful termination) PC 2: Athlon XP 1800+, 512MB, Windows XP Prof SP2 (stack overflow)
The program runs successful within 1MB of stack on PC 1, but it exits with a stack overflow error on PC 2.
Has anyone else observed such behaviour using the same binary, and similar computers? I'm curious of what might trigger the stack overflow. The program itself is partially generated and large, so I'll omit it for the time being.
Is the program completely self-contained and deterministic? i.e. does it read any files in the filesystem, check the time, or do anything that might give different results on the two machines?
This is exactly what makes the problem strange! Yes, it is completely self-contained and deterministic. I forgot to mentions this, sorry. The program looks like this: main :: IO () main = putStr (f 100 0). Where f is a referential transparent function that doesn't do IO or anything unsafe. cheers, Arjen