#9722: ghcirun004 intermittently fails with ghc: ioManagerWakeup: write: Bad file descriptor -------------------------------------+------------------------------------- Reporter: ezyang | Owner: simonmar Type: bug | Status: patch Priority: high | Milestone: 7.10.1 Component: Runtime System | Version: 7.9 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime crash | Unknown/Multiple Blocked By: | Test Case: ghcirun004 Related Tickets: | Blocking: | Differential Revisions: Phab:D714 -------------------------------------+------------------------------------- Comment (by thomie): Smaller test case (without any cpu loading) for the real bug: {{{ $ cat T9722.hs main = return () $ ghc-7.10.0.20150307 -threaded -rtsopts T9722.hs $ ./T9722 +RTS -I0.000000001 T9722: ioManagerWakeup: write: Bad file descriptor }}} This only happens ~50% of the time, and it doesn't happen with 7.8.4. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9722#comment:16 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler