runtime crashing with +RTS -w -h
A combination of the RTS flags -w and -h makes executables generated with ghc crash at runtime. Does not happen always; my current guess is that a gc run triggers the bug.
Reproducible with the following input:
Main.hs
module Main where
import qualified Data.Map.Strict as M
main = print $ M.lookup 10 $ M.fromList [ (i,i)
| i<-[1..10000000] ]> ghc -rtsopts Main.hs && ./Main +RTS -w -h
[1 of 1] Compiling Main ( Main.hs, Main.o )
Linking Main ...
Main: internal error: heapCensus, unknown object: 4093
(GHC version 7.8.3 for x86_64_unknown_linux)optimization level did not change the outcome.
I am aware that -w is marked experimental, and I don't need it. Just noticed the crashing.
@simon: you get added to Cc (one more time) every time I press "preview", it seems. Doubt that is intentional.. I'll leave you in Cc just so you get this message. (hmm.. where is the bug-tracker bug-tracker..)
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.8.3 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | low |
| Resolution | Unresolved |
| Component | Runtime System |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | simonmar |
| Operating system | |
| Architecture |