#13916: Optimizations create run time seg faults -------------------------------------+------------------------------------- Reporter: newthin | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.2 (CodeGen) | Resolution: | Keywords: optimization Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Runtime crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by dfeuer): The code you point to implements `MVar`s. The example code doesn't seem to handle any of those directly. The only `MVar`s I see in the vicinity are in `async`, and there don't seem to be any arrays around there to index improperly. Specifically, `forConcurrently_` (used in `main.hs`) is ultimately defined in terms of `concurrently`, which uses an `MVar`. But that doesn't bring any potentially-dangerous vector indexes close enough to make those look like good candidates for the problem. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13916#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler