#8276: Building Haddock documentation panics with perf build on x86_64 Linux ---------------------------------------+---------------------------------- Reporter: jstolarek | Owner: thoughtpolice Type: bug | Status: closed Priority: highest | Milestone: 7.8.1 Component: Documentation | Version: 7.7 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: x86_64 (amd64) Type of failure: Compile-time crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: ---------------------------------------+---------------------------------- Comment (by RyanGlScott): I still experience this panic on GHC 7.8.2 with Windows x86_64: {{{ $ ghci GHCi, version 7.8.2: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer-gmp ... linking ... done. Loading package base ... linking ... done. λ> import StaticFlags λ> import Data.IORef λ> readIORef v_opt_C_ready Loading package array-0.5.0.0 ... linking ... done. Loading package deepseq-1.3.0.2 ... linking ... done. Loading package bytestring-0.10.4.0 ... linking ... done. Loading package containers-0.5.5.1 ... linking ... done. Loading package Win32-2.3.0.2 ... linking ... done. Loading package filepath-1.3.0.2 ... linking ... done. Loading package old-locale-1.0.0.6 ... linking ... done. Loading package time-1.4.2 ... linking ... done. Loading package directory-1.2.1.0 ... linking ... done. Loading package pretty-1.1.1.1 ... linking ... done. Loading package process-1.2.0.0 ... linking ... done. Loading package Cabal-1.18.1.3 ... linking ... done. Loading package binary-0.7.1.0 ... linking ... done. Loading package bin-package-db-0.0.0.0 ... linking ... done. Loading package hoopl-3.10.0.1 ... linking ... done. Loading package hpc-0.6.0.1 ... linking ... done. Loading package template-haskell ... linking ... done. Loading package transformers-0.3.0.0 ... linking ... done. Loading package ghc-7.8.2 ... linking ... done. False λ> staticFlags ghc.exe: panic! (the 'impossible' happened) (GHC version 7.8.2 for x86_64-unknown-mingw32): Static flags have not been initialised! Please call GHC.parseStaticFlags early enough. Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} But not with GHC 7.8.2 on Linux x86_64: {{{ $ ghci GHCi, version 7.8.2: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer-gmp ... linking ... done. Loading package base ... linking ... done. λ> import StaticFlags λ> import Data.IORef λ> readIORef v_opt_C_ready Loading package array-0.5.0.0 ... linking ... done. Loading package deepseq-1.3.0.2 ... linking ... done. Loading package bytestring-0.10.4.0 ... linking ... done. Loading package containers-0.5.5.1 ... linking ... done. Loading package filepath-1.3.0.2 ... linking ... done. Loading package old-locale-1.0.0.6 ... linking ... done. Loading package time-1.4.2 ... linking ... done. Loading package directory-1.2.1.0 ... linking ... done. Loading package pretty-1.1.1.1 ... linking ... done. Loading package process-1.2.0.0 ... linking ... done. Loading package Cabal-1.18.1.3 ... linking ... done. Loading package binary-0.7.1.0 ... linking ... done. Loading package bin-package-db-0.0.0.0 ... linking ... done. Loading package hoopl-3.10.0.1 ... linking ... done. Loading package hpc-0.6.0.1 ... linking ... done. Loading package template-haskell ... linking ... done. Loading package transformers-0.3.0.0 ... linking ... done. Loading package ghc-7.8.2 ... linking ... done. True λ> staticFlags [] }}} This has caused problems for me when running programs such as [https://github.com/ku-fpg/hermit/ HERMIT] on Windows, since at some point, {{{parseStaticFlagsFull}}} seems to be called during program execution. A workaround is to call {{{initStaticOpts}}} manually somewhere in the program, but I feel like that shouldn't be necessary. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8276#comment:43 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler