- ghc-tickets - Haskell.org

Re: [GHC] #7078: Panic using mixing list with parallel arrays incorrectly
by GHC 23 Nov '14

23 Nov '14

#7078: Panic using mixing list with parallel arrays incorrectly ---------------------------------------------+--------------------------- Reporter: NeilJ | Owner: chak Type: bug | Status: new Priority: normal | Milestone: 7.10.1 Component: Compiler | Version: 7.4.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: x86 Type of failure: Compile-time crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: #7736 Differential Revisions: | ---------------------------------------------+--------------------------- Changes (by thomie): * related: => #7736 -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7078#comment:7> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7741: Add SIMD support to x86/x86_64 NCG
by GHC 23 Nov '14

23 Nov '14

#7741: Add SIMD support to x86/x86_64 NCG -------------------------------------+------------------------------------- Reporter: shelarcy | Owner: Type: feature | Status: new request | Milestone: 7.10.1 Priority: normal | Version: 7.7 Component: Compiler | Keywords: (NCG) | Architecture: Unknown/Multiple Resolution: | Difficulty: Unknown Operating System: | Blocked By: Unknown/Multiple | Related Tickets: #3557 Type of failure: | None/Unknown | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by thomie): * component: Compiler => Compiler (NCG) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7741#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7763: Resource limits for Haskell
by GHC 23 Nov '14

23 Nov '14

#7763: Resource limits for Haskell -------------------------------------+------------------------------------- Reporter: ezyang | Owner: simonmar Type: feature | Status: infoneeded request | Milestone: 7.10.1 Priority: normal | Version: 7.7 Component: Profiling | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: | Related Tickets: #5476 None/Unknown | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by thomie): * related: => #5476 Comment: See also http://ezyang.com/rlimits.html. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7763#comment:15> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7767: "internal error: evacuate: strange closure type 154886248" crash
by GHC 23 Nov '14

23 Nov '14

#7767: "internal error: evacuate: strange closure type 154886248" crash -------------------------------------+------------------------------------- Reporter: rodlogic | Owner: Type: feature | Status: closed request | Milestone: 7.10.1 Priority: normal | Version: 7.6.2 Component: Runtime | Keywords: System | Architecture: x86_64 (amd64) Resolution: invalid | Difficulty: Unknown Operating System: MacOS X | Blocked By: Type of failure: Runtime | Related Tickets: crash | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by thomie): * status: infoneeded => closed * resolution: => invalid Comment: Replying to [comment:11 carter]: > So this ticket it about the possibility of exposing a GHC api to better support writing Heap introspection tools right? > > Should we split that out into its own ticket as a somewhat clearer feature request that cites this ticket? Yes, could somebody please do that, if it's still necessary. A feature request with the title "internal error: evacuate: strange closure type 154886248" is very confusing. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7767#comment:13> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7789: GHCI core dumps when used with VTY
by GHC 23 Nov '14

23 Nov '14

#7789: GHCI core dumps when used with VTY -------------------------------------+------------------------------------- Reporter: timthelion | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.10.1 Component: GHCi | Version: 7.4.2-rc1 Resolution: | Keywords: core dump Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: GHCi crash | Blocked By: Test Case: | Related Tickets: Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by thomie): Can reproduce on Linux 64 with 7.8.3. To reproduce the segmentation fault: {{{ $ cabal install vty-menu $ ghci -fno-ghci-sandbox ghci-coredumper.hs Prelude> die # Hold the Enter key for 10-30 seconds. }}} Replacing the second step by just `ghci ghci-coredumper.hs`, I sometimes get: {{{ *** Error in `/usr/local/haskell/ghc-7.8.3-x86_64/lib/ghc-7.8.3/bin/ghc': double free or corruption (fasttop): 0x00007f65b00118c0 *** Aborted (core dumped) }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7789#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7788: Recursive type family causes <<loop>>
by GHC 23 Nov '14

23 Nov '14

#7788: Recursive type family causes <<loop>> -------------------------------------+------------------------------------- Reporter: shachaf | Owner: simonpj Type: bug | Status: new Priority: high | Milestone: 7.10.1 Component: Compiler | Version: 7.6.2 (Type checker) | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: Incorrect | Related Tickets: result at runtime | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by thomie): * priority: normal => high Comment: The program from the description compiles fine with 7.8.3. GHC HEAD (ghc-7.9.20141121) however uses a huge amount of memory very quickly until I have to kill the process. It seems to never get past the `Renamer/typechecker` phase. This looks like a regression, setting priority to high. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7788#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7803: Superclass methods are left unspecialized
by GHC 23 Nov '14

23 Nov '14

#7803: Superclass methods are left unspecialized -------------------------------------+------------------------------------- Reporter: akio | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.10.1 Component: Compiler | Version: 7.6.2 Resolution: | Keywords: Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: Compile- | Blocked By: time performance bug | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by thomie): Simon's suggestion change from comment:3 did not make it into the [https://github.com/ghc/ghc/blob/96d29b5403bd8a6465a65a39da861f5b9610fc89/co… ghc codebase]. I am not sure what the status of this ticket is. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7803#comment:7> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7836: "Invalid object in processHeapClosureForDead" when profiling with -hb (was: Runtime failure profiling with +RTS -hc -hbdrag, void)
by GHC 23 Nov '14

23 Nov '14

#7836: "Invalid object in processHeapClosureForDead" when profiling with -hb -------------------------------------+------------------------------------- Reporter: hyperthunk | Owner: Type: bug | Status: infoneeded Priority: normal | Milestone: 7.10.1 Component: Profiling | Version: 7.4.2 Resolution: | Keywords: profiling osx Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: Runtime | Blocked By: crash | Related Tickets: #9640 Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by thomie): * os: MacOS X => Unknown/Multiple * architecture: x86_64 (amd64) => Unknown/Multiple * related: => #9640 Comment: See #9640 for a report of this problem when profiling `Yi` with 7.8.3. I don't think this is an OS X only problem. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7836#comment:11> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7842: Incorrect checking of let-bindings in recursive do
by GHC 23 Nov '14

23 Nov '14

#7842: Incorrect checking of let-bindings in recursive do -------------------------------------+------------------------------------- Reporter: diatchki | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.7 (Type checker) | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: GHC | Related Tickets: rejects valid program | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by thomie): * difficulty: => Unknown Comment: This ticket is listed on the page of [wiki:Status/SLPJ-Tickets tickets] that SPJ is interested in. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7842#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7849: Error on pattern matching of an existential whose context includes a type function
by GHC 23 Nov '14

23 Nov '14

#7849: Error on pattern matching of an existential whose context includes a type function -------------------------------------+------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.10.1 Component: Compiler | Version: 7.4.2 (Type checker) | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: | Related Tickets: None/Unknown | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by thomie): * difficulty: => Unknown * milestone: => 7.10.1 Comment: With HEAD (ghc-7.9.20141121), the error message is still the same, except for these 2 extra lines: {{{ Expected type: IO b0 Actual type: IO () }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7849#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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