#8866: scavenge_stack: weird activation record found on stack on "cabal install -j" ----------------------------------+---------------------------------- Reporter: adinapoli | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: Build System | Version: 7.8.1-rc2 Keywords: | Operating System: MacOS X Architecture: x86_64 (amd64) | Type of failure: Runtime crash Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ----------------------------------+---------------------------------- Hello everyone, sorry if this was reported somewhere else. I know that the dreadful "scavenge_stack" is nothing new, but it's the first time I see it on Mac OS X (I'm on Maverick, OS X 10.9.2). This is a "stacktrace" of the problem. It seems to happen almost consistently if I try to do a parallel installation: {{{ [hsenv]☁ ~HSENV cabal install -j snap Resolving dependencies... Configuring HUnit-1.2.5.2... Downloading MonadRandom-0.1.13... Downloading logict-0.6.0.2... cabal: internal error: scavenge_stack: weird activation record found on stack: 415597384 (GHC version 7.8.0.20140228 for x86_64_apple_darwin) Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug [1] 2328 abort cabal install -j snap [hsenv]☁ ~HSENV }}} The concerning thing is that it doesn't seem to be deterministic. After issuing that command, I have tried again and it worked this time: {{{ [hsenv]☁ ~HSENV cabal install -j snap Resolving dependencies... Configuring HUnit-1.2.5.2... Downloading MonadRandom-0.1.13... Configuring SHA-1.6.4... Downloading logict-0.6.0.2... Downloading process-1.1.0.2... [...] }}} It seems to happen with every package and I have tried to install snap just for the sake of reproducing it. Thanks! ps. Cross-posted on Github into the cabal issue tracker: https://github.com/haskell/cabal/issues/1716 Alfredo -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8866 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler