#11591: thread blocked indefinitely in an MVar operation --------------------------------------+------------------------------- Reporter: PaulNibin | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.3 Keywords: | Operating System: Windows Architecture: x86_64 (amd64) | Type of failure: GHCi crash Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: --------------------------------------+------------------------------- *Main> take 24 [13,26..] [13,26,39,52,65,78,91,104,117,130,143,156,169,182,195,208,221,234,247,260,273,286,299,312] *Main> cycle [1,2,3] [1,2,3,1,2,3,1,2,3,1,2,3,1,2,3,1,2,3,1,2,3,1,2, *Main> *Main> *Main> *Main> take 10 (cycle [1,2,3]) [1,2,3,1,2,3,1,2,3,1] *Main> take 10 (cycle "Hel) ghc.exe: panic! (the 'impossible' happened) (GHC version 7.10.3 for x86_64-unknown-mingw32): thread blocked indefinitely in an MVar operation Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11591 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler