64 bit windows executables compiled with ghc-7.8rc2 segfault when allocate more than 4G of memory
Consider this:
-- t.hs
import System.Environment
main :: IO ()
main = do
n <- fmap (read . head) getArgs
print $ foldr (+) (0::Int) [0 .. n]
Compiled with ghc-7.6.3 and ran thus:
ghc -O2 -rtsopts --make -o t.exe t.hs
t.exe +RTS -K4G -RTS 250000000
it works fine!
But compiled with 7.8rc2 it segfaults when amount of memory allocated crosses 4G mark.
I've discovered this trying to use Agda built with ghc-7.8rc2 but quickly understood this is a general problem and extremely nasty one.
Trac metadata
Trac field | Value |
---|---|
Version | 7.8.1-rc2 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | highest |
Resolution | Unresolved |
Component | Runtime System |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | simonmar |
Operating system | |
Architecture |