#9722: ghcirun004 intermittently fails with ghc: ioManagerWakeup: write: Bad file descriptor -------------------------------------+------------------------------------- Reporter: ezyang | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | Version: 7.9 Resolution: | Keywords: Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: Runtime | Blocked By: crash | Related Tickets: Test Case: ghcirun004 | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by simonpj): Does anyone have a clue what is going on here? I regularly get a batch of failures {{{ Unexpected failures: ffi/should_run ffi018_ghci [bad stdout or stderr] (ghci) ghci/should_run T2589 [bad stdout or stderr] (ghci) ghci/should_run ghcirun001 [bad stdout or stderr] (ghci) ghci/should_run ghcirun002 [bad exit code] (ghci) ghci/should_run ghcirun003 [bad stdout or stderr] (ghci) ghci/should_run ghcirun004 [bad stdout or stderr] (ghci) }}} all of which are this `ioManagerWakeup:write: Bad file descriptor` thing. What is `ioManagerWakeup`? Who calls it? Why? What does it mean to have a bad file descriptor? It's bad because I can't get a clean validate these days. Incidentally {{{ make TEST=ghcirun001 }}} works fine! Simon -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9722#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler