[GHC] #9753: Segmentation fault when applying ** to a complex number
#9753: Segmentation fault when applying ** to a complex number ---------------------------------+--------------------------------------- Reporter: AlexeiKopylov | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | Version: 7.6.3 Keywords: | Operating System: MacOS X Architecture: ia64 | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: ---------------------------------+--------------------------------------- Rising a negative complex number to a power using {{{**}}} in ghci causes a segmentation fault: {{{ $ ghci GHCi, version 7.6.3: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer-gmp ... linking ... done. Loading package base ... linking ... done. Prelude> :m +Data.Complex Prelude Data.Complex> (-1) ** 1 :: Complex Double Segmentation fault }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9753 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9753: Segmentation fault when applying ** to a complex number ----------------------------------------+--------------------------- Reporter: AlexeiKopylov | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | Version: 7.6.3 Resolution: | Keywords: Operating System: MacOS X | Architecture: ia64 Type of failure: GHCi crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | ----------------------------------------+--------------------------- Changes (by AlexeiKopylov): * failure: None/Unknown => GHCi crash -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9753#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9753: Segmentation fault when applying ** to a complex number ----------------------------------------+--------------------------- Reporter: AlexeiKopylov | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | Version: 7.6.3 Resolution: | Keywords: Operating System: MacOS X | Architecture: ia64 Type of failure: GHCi crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | ----------------------------------------+--------------------------- Old description:
Rising a negative complex number to a power using {{{**}}} in ghci causes a segmentation fault: {{{ $ ghci GHCi, version 7.6.3: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer-gmp ... linking ... done. Loading package base ... linking ... done. Prelude> :m +Data.Complex Prelude Data.Complex> (-1) ** 1 :: Complex Double Segmentation fault }}}
New description: Rising a negative complex number to a power using {{{**}}} in ghci causes a segmentation fault: {{{ $ ghci GHCi, version 7.6.3: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer-gmp ... linking ... done. Loading package base ... linking ... done. Prelude> :m +Data.Complex Prelude Data.Complex> (-1) ** 1 :: Complex Double Segmentation fault }}} -- Comment (by thomie): I can not reproduce this problem on Linux, neither with 7.6.3, nor with 7.8.3: {{{ $ ghci GHCi, version 7.8.3: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer-gmp ... linking ... done. Loading package base ... linking ... done. Prelude> :m +Data.Complex Prelude Data.Complex> (-1) ** 1 :: Complex Double (-1.0) :+ (-1.2246467991473532e-16) }}} Can you try with GHC 7.8.3? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9753#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9753: Segmentation fault when applying ** to a complex number ----------------------------------------+--------------------------- Reporter: AlexeiKopylov | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | Version: 7.6.3 Resolution: | Keywords: Operating System: MacOS X | Architecture: ia64 Type of failure: GHCi crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | ----------------------------------------+--------------------------- Comment (by AlexeiKopylov): I've updated to 7.8.3, and the bag is disappeared. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9753#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9753: Segmentation fault when applying ** to a complex number ----------------------------------------+--------------------------- Reporter: AlexeiKopylov | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: GHCi | Version: 7.6.3 Resolution: worksforme | Keywords: Operating System: MacOS X | Architecture: ia64 Type of failure: GHCi crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | ----------------------------------------+--------------------------- Changes (by thomie): * status: new => closed * resolution: => worksforme Comment: Must have been fixed somewhere along the line. Sorry for the bug! There won't be any more 7.6 releases unfortunately. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9753#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
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