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throwTo segfaults under -prof -threaded -with-rtsopts=N2

Save the following module as throwto.hs

import Control.Concurrent
import Control.Exception
import Control.Monad

main = do
  tid <- mask_ $ forkIO $ void $
    (try $ threadDelay 100000 :: IO (Either SomeException ()))
  killThread tid

Then compile it with HEAD and run it:

ghc-stage2 throwto.hs -prof -threaded -fforce-recomp
./throwto +RTS -N2
# segfaults
Trac metadata
Trac field Value
Version 7.7
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture
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