#12038: Shutdown interacts badly with requestSync() -------------------------------------+------------------------------------- Reporter: simonmar | Owner: Type: bug | Status: new Priority: normal | Milestone: 8.4.1 Component: Runtime System | Version: 7.10.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by bgamari): I've left the test running for several thousand iterations in the background and have seen the error mentioned in comment:9 pop up a handful of times. On the bright side, this appears to be the only failure mode. It seems what is happening here is that the IO manager is trying to wake- up a manager thread which has already exited. We could simply add an `IORef` to `Control` to indicate that the manager has exited, but it's not clear to me whether this would merely be working around some more sinister root cause. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12038#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler