+RTS -hT does not report about SmallArray objects
+RTS -hT seems to ignore SmallArray# objects. Also the combination of SmallArray# objects and -hT causes a segfault on ghc 7.10.
To reproduce, save the following progam as smallarray.hs
{-# LANGUAGE MagicHash #-}
{-# LANGUAGE BangPatterns #-}
{-# LANGUAGE UnboxedTuples #-}
import GHC.Exts
import GHC.IO (IO(..), unIO)
import Control.Concurrent
import Control.Monad
import System.Mem
main :: IO ()
main = do
forkIO $ forever $ performGC
IO $ \s0 ->
let
!(# s01, msa #) = newSmallArray# 100# 'X' s0
!s02 = writeSmallArray# msa 4# 'Y' s01
!(# s1, sa #) = unsafeFreezeSmallArray# msa s02
!(# s2, () #) = unIO (threadDelay 5000000) s1
!(# v #) = indexSmallArray# sa 2#
!(# s3, () #) = unIO (print v) s2
in (# s3, () #)
compile it, and run it like:
ghc smallarray.hs -rtsopts -threaded
./samllarray +RTS -hT
Trac metadata
Trac field | Value |
---|---|
Version | 8.2.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Runtime System |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |