#12824: crashed when install debian on ubuntu 16.06 in Hyper-V VM -------------------------------------+------------------------------------- Reporter: Qinka95 | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Keywords: | Operating System: Linux Architecture: x86_64 | Type of failure: Compile-time (amd64) | crash or panic Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- When installing the package (debian-3.91.1), ghc(8.0.1) crashed. And output these: {{{ ghc: panic! (the 'impossible' happened) (GHC version 8.0.1 for x86_64-unknown-linux): find_tycon Loc [] Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} And the full output when installing debian are here: {{{ $ cabal install debian Resolving dependencies... cabal: Entering directory '/tmp/cabal-tmp-31302/debian-3.91.1' Configuring debian-3.91.1... Building debian-3.91.1... Preprocessing library debian-3.91.1... [ 1 of 37] Compiling Debian.UTF8 ( Debian/UTF8.hs, dist/build/Debian/UTF8.o ) [ 2 of 37] Compiling Debian.Version.Internal ( Debian/Version/Internal.hs, dist/build/Debian/Version/Internal.o ) [ 3 of 37] Compiling Debian.Extra.Files ( Debian/Extra/Files.hs, dist/build/Debian/Extra/Files.o ) [ 4 of 37] Compiling Debian.Loc ( Debian/Loc.hs, dist/build/Debian/Loc.o ) [ 5 of 37] Compiling Debian.Pretty ( Debian/Pretty.hs, dist/build/Debian/Pretty.o ) [ 6 of 37] Compiling Debian.Version.Common ( Debian/Version/Common.hs, dist/build/Debian/Version/Common.o ) [ 7 of 37] Compiling Debian.Version.String ( Debian/Version/String.hs, dist/build/Debian/Version/String.o ) [ 8 of 37] Compiling Debian.Version.Text ( Debian/Version/Text.hs, dist/build/Debian/Version/Text.o ) [ 9 of 37] Compiling Debian.Arch ( Debian/Arch.hs, dist/build/Debian/Arch.o ) [10 of 37] Compiling Debian.Time ( Debian/Time.hs, dist/build/Debian/Time.o ) Debian/Time.hs:23:19: warning: [-Wdeprecations] In the use of ‘parseTime’ (imported from Data.Time, but defined in time-1.6.0.1:Data.Time.Format.Parse): Deprecated: "use "parseTimeM True" instead" [11 of 37] Compiling Debian.URI ( Debian/URI.hs, dist/build/Debian/URI.o ) [12 of 37] Compiling Debian.Release ( Debian/Release.hs, dist/build/Debian/Release.o ) [13 of 37] Compiling Debian.Sources ( Debian/Sources.hs, dist/build/Debian/Sources.o ) [14 of 37] Compiling Debian.Control.Common ( Debian/Control/Common.hs, dist/build/Debian/Control/Common.o ) Debian/Control/Common.hs:75:1: warning: [-Wredundant-constraints] • Redundant constraint: ControlFunctions a • In the type signature for: protectFieldText' :: (StringLike a, ListLike a Char, ControlFunctions a) => a -> a Debian/Control/Common.hs:158:1: warning: [-Wredundant-constraints] • Redundant constraint: Eq a • In the type signature for: raiseFields :: Eq a => (a -> Bool) -> Paragraph' a -> Paragraph' a [15 of 37] Compiling Debian.Control.String ( Debian/Control/String.hs, dist/build/Debian/Control/String.o ) [16 of 37] Compiling Debian.Deb ( Debian/Deb.hs, dist/build/Debian/Deb.o ) [17 of 37] Compiling Debian.Apt.Methods ( Debian/Apt/Methods.hs, dist/build/Debian/Apt/Methods.o ) Debian/Apt/Methods.hs:28:1: warning: [-Wdeprecations] Module ‘Control.Monad.Error’ is deprecated: Use Control.Monad.Except instead [18 of 37] Compiling Debian.Version.ByteString ( Debian/Version/ByteString.hs, dist/build/Debian/Version/ByteString.o ) [19 of 37] Compiling Debian.Version ( Debian/Version.hs, dist/build/Debian/Version.o ) [20 of 37] Compiling Debian.Changes ( Debian/Changes.hs, dist/build/Debian/Changes.o ) [21 of 37] Compiling Debian.Relation.Common ( Debian/Relation/Common.hs, dist/build/Debian/Relation/Common.o ) [22 of 37] Compiling Debian.Relation.String ( Debian/Relation/String.hs, dist/build/Debian/Relation/String.o ) [23 of 37] Compiling Debian.Relation.Text ( Debian/Relation/Text.hs, dist/build/Debian/Relation/Text.o ) [24 of 37] Compiling Debian.Relation.ByteString ( Debian/Relation/ByteString.hs, dist/build/Debian/Relation/ByteString.o ) [25 of 37] Compiling Debian.Relation ( Debian/Relation.hs, dist/build/Debian/Relation.o ) [26 of 37] Compiling Debian.Control.ByteString ( Debian/Control/ByteString.hs, dist/build/Debian/Control/ByteString.o ) Debian/Control/ByteString.hs:132:1: warning: [-Wredundant-constraints] • Redundant constraint: ControlFunctions a • In the type signature for: protectFieldText' :: (LL.StringLike a, LL.ListLike a Word8, ControlFunctions a) => a -> a Debian/Control/ByteString.hs:138:7: warning: [-Wredundant-constraints] • Redundant constraint: LL.StringLike a • In the type signature for: dropWhileEnd :: (LL.StringLike a1, LL.ListLike a1 Word8) => (Word8 -> Bool) -> a1 -> a1 In an equation for ‘protectFieldText'’: protectFieldText' s = case LL.lines s of { [] -> LL.empty (l : ls) -> dropWhileEnd (isSpace . chr . fromIntegral) $ LL.unlines $ l : map protect ls } where dropWhileEnd :: (LL.StringLike a, LL.ListLike a Word8) => (Word8 -> Bool) -> a -> a dropWhileEnd func = LL.reverse . LL.dropWhile func . LL.reverse protect :: (LL.StringLike a, LL.ListLike a Word8) => a -> a protect l = maybe LL.empty (\ c -> if isHorizSpace c then l else LL.cons (ord' ' ' :: Word8) l) (LL.find (const True :: Word8 -> Bool) l) .... Debian/Control/ByteString.hs:140:7: warning: [-Wredundant-constraints] • Redundant constraint: LL.StringLike a • In the type signature for: protect :: (LL.StringLike a1, LL.ListLike a1 Word8) => a1 -> a1 In an equation for ‘protectFieldText'’: protectFieldText' s = case LL.lines s of { [] -> LL.empty (l : ls) -> dropWhileEnd (isSpace . chr . fromIntegral) $ LL.unlines $ l : map protect ls } where dropWhileEnd :: (LL.StringLike a, LL.ListLike a Word8) => (Word8 -> Bool) -> a -> a dropWhileEnd func = LL.reverse . LL.dropWhile func . LL.reverse protect :: (LL.StringLike a, LL.ListLike a Word8) => a -> a protect l = maybe LL.empty (\ c -> if isHorizSpace c then l else LL.cons (ord' ' ' :: Word8) l) (LL.find (const True :: Word8 -> Bool) l) .... [27 of 37] Compiling Debian.Control.Text ( Debian/Control/Text.hs, dist/build/Debian/Control/Text.o ) Debian/Control/Text.hs:32:1: warning: [-Wunused-imports] The qualified import of ‘T.reverse’ from module ‘Data.Text’ is redundant [28 of 37] Compiling Debian.Control.Policy ( Debian/Control/Policy.hs, dist/build/Debian/Control/Policy.o ) Debian/Control/Policy.hs:87:5: warning: [-Wunused-top-binds] Defined but not used: ‘control’ [29 of 37] Compiling Debian.Control.Builder ( Debian/Control/Builder.hs, dist/build/Debian/Control/Builder.o ) Debian/Control/Builder.hs:34:1: warning: [-Wunused-imports] The qualified import of ‘Data.Text’ is redundant except perhaps to import instances from ‘Data.Text’ To import instances alone, use: import Data.Text() Debian/Control/Builder.hs:36:1: warning: [-Wunused-imports] The import of ‘fromLazyText’ from module ‘Data.Text.Lazy.Builder’ is redundant Debian/Control/Builder.hs:104:1: warning: [-Wmissing-signatures] Top-level binding with no type signature: dropAround :: forall c item. LL.ListLike c item => (item -> Bool) -> c -> c [30 of 37] Compiling Debian.Control.TextLazy ( Debian/Control/TextLazy.hs, dist/build/Debian/Control/TextLazy.o ) Debian/Control/TextLazy.hs:32:1: warning: [-Wunused-imports] The qualified import of ‘T.reverse’ from module ‘Data.Text.Lazy’ is redundant [31 of 37] Compiling Debian.Control ( Debian/Control.hs, dist/build/Debian/Control.o ) Debian/Control.hs:56:1: warning: [-Wunused-imports] The qualified import of ‘Debian.Control.TextLazy’ is redundant except perhaps to import instances from ‘Debian.Control.TextLazy’ To import instances alone, use: import Debian.Control.TextLazy() [32 of 37] Compiling Debian.Apt.Index ( Debian/Apt/Index.hs, dist/build/Debian/Apt/Index.o ) [33 of 37] Compiling Debian.Report ( Debian/Report.hs, dist/build/Debian/Report.o ) [34 of 37] Compiling Debian.GenBuildDeps ( Debian/GenBuildDeps.hs, dist/build/Debian/GenBuildDeps.o ) ghc: panic! (the 'impossible' happened) (GHC version 8.0.1 for x86_64-unknown-linux): find_tycon Loc [] Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug cabal: Leaving directory '/tmp/cabal-tmp-31302/debian-3.91.1' Failed to install debian-3.91.1 cabal: Error: some packages failed to install: debian-3.91.1 failed during the building phase. The exception was: ExitFailure 1 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12824 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler