- ghc-tickets - Haskell.org

Re: [GHC] #4505: Segmentation fault on long input (list of pairs)
by GHC 24 Nov '14

24 Nov '14

#4505: Segmentation fault on long input (list of pairs) -------------------------------------+------------------------------------- Reporter: cathper | Owner: simonmar Type: bug | Status: new Priority: high | Milestone: 7.10.1 Component: Compiler | Version: 7.0.1 Resolution: | Keywords: Segmentation Operating System: Linux | fault, segfault, long input Type of failure: Runtime | Architecture: x86_64 (amd64) crash | Difficulty: Unknown Test Case: | Blocked By: 4258 Blocking: | Related Tickets: Differential Revisions: | -------------------------------------+------------------------------------- Changes (by simonpj): * owner: => simonmar * priority: normal => high Comment: Simon M: might you re-instate the previous fix, helpfully identified by Yuras, pending a more glorious resolution. (With a pointer from the fix back to this ticket.) I'll make the priority high, because it seems easy and much better than a runtime crash. Simon -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4505#comment:25> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 0

Re: [GHC] #7854: Constrained method type accepted in Haskell 98 mode
by GHC 24 Nov '14

24 Nov '14

#7854: Constrained method type accepted in Haskell 98 mode -------------------------------------+------------------------------------- Reporter: refold | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Resolution: | Keywords: newcomer Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: | Blocked By: None/Unknown | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by simonpj): * keywords: => newcomer -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7854#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 0

Re: [GHC] #7854: Constrained method type accepted in Haskell 98 mode
by GHC 24 Nov '14

24 Nov '14

#7854: Constrained method type accepted in Haskell 98 mode -------------------------------------+------------------------------------- Reporter: refold | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Resolution: | Keywords: Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: | Blocked By: None/Unknown | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by simonpj): I agree with monoidal. Would someone like to do that? Simon -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7854#comment:7> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 0

Re: [GHC] #7695: Hang when locale-archive and gconv-modules are not there
by GHC 24 Nov '14

24 Nov '14

#7695: Hang when locale-archive and gconv-modules are not there -------------------------------------+------------------------------------- Reporter: hpd | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.10.1 Component: None | Version: 7.8.1 Resolution: | Keywords: Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: Runtime | Blocked By: crash | Related Tickets: #8977 Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by trommler): Replying to [comment:10 thomie]: > Strange. When I run the commands from the description with ghc-7.8.3, cpu goes indeed to 100% and the process never finishes. When I do the same with HEAD, everything works fine. I'm on Ubuntu 14.04 x86_64. Strange. Perhaps I will try again with a freshly checked out tree. I am never sure if the submodules worked out right. But blame that on my lack of git skills. > trommler: do you maybe have a better test for this bug? I use `ghc --version`. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7695#comment:11> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 0

Re: [GHC] #7870: Compilation errors break the complexity encapsulation on DSLs, impairs success in industry
by GHC 24 Nov '14

24 Nov '14

#7870: Compilation errors break the complexity encapsulation on DSLs, impairs success in industry -------------------------------------+------------------------------------- Reporter: agocorona | Owner: Type: feature | Status: new request | Milestone: Priority: normal | Version: 7.7 Component: Compiler | Keywords: DSL, Error, (Type checker) | Architecture: Unknown/Multiple Resolution: | Difficulty: Unknown Operating System: | Blocked By: Unknown/Multiple | Related Tickets: Type of failure: | None/Unknown | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by baramoglo): * cc: emax@… (added) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7870#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 0

Re: [GHC] #7521: Simplifier ticks exhausted when compiling Accelerate example.
by GHC 24 Nov '14

24 Nov '14

#7521: Simplifier ticks exhausted when compiling Accelerate example. -------------------------------------+------------------------------------- Reporter: eamsden | Owner: Type: bug | Status: new Priority: high | Milestone: 7.10.1 Component: Compiler | Version: 7.6.1 Resolution: | Keywords: Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: Compile- | Blocked By: time crash | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by thomie): * os: Linux => Unknown/Multiple Comment: The file `accelerate-examples.cabal` in the latest version of that package (0.15.0.0) contains: {{{ if impl(ghc >= 7.6) ghc-options: -fsimpl-tick-factor=130 }}} When I remove those lines, trying to build the package with ghc-7.8.3 still results in a `Simplifier ticks exhausted` panic. Steps to reproduce: {{{ $ sudo apt-get install c2hs freeglut3-dev $ cabal get accelerate-examples==0.15.0.0 $ cd accelerate-examples $ cabal install --dependencies-only # `accelerate-cuda` might fail to install, just ignore that # edit `accelerate-examples.cabal` $ cabal build }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7521#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 0

Re: [GHC] #7475: Mysterious Data.Word Segmentation Fault in GHCi
by GHC 24 Nov '14

24 Nov '14

#7475: Mysterious Data.Word Segmentation Fault in GHCi -------------------------------------+------------------------------------- Reporter: VKS | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 7.6.1 Resolution: fixed | Keywords: ghci, data.word, Operating System: MacOS X | segfault Type of failure: GHCi crash | Architecture: x86_64 (amd64) Test Case: | Difficulty: Unknown Blocking: | Blocked By: 3658 Differential Revisions: | Related Tickets: -------------------------------------+------------------------------------- Changes (by thomie): * status: infoneeded => closed * resolution: => fixed * milestone: 7.10.1 => Comment: This was fixed in or before version 7.8.3. Confirmed on 64 bit OS X by carter. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7475#comment:7> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 0

[GHC] #9827: void does not use <$
by GHC 24 Nov '14

24 Nov '14

#9827: void does not use <$ -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: dfeuer Type: task | Status: new Priority: normal | Milestone: 7.10.1 Component: Core Libraries | Version: 7.9 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Easy (less than 1 | Type of failure: Runtime hour) | performance bug Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: Phab:D521 -------------------------------------+------------------------------------- `Data.Functor.void` is currently defined as {{{#!hs void = fmap (const ()) }}} Some `Functor` instances have an optimized `<$`, so this should be {{{#!hs void x = () <$ x }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9827> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 3

Re: [GHC] #4162: GHC API messes up signal handlers
by GHC 24 Nov '14

24 Nov '14

#4162: GHC API messes up signal handlers -------------------------------------+------------------------------------- Reporter: jcpetruzza | Owner: Type: bug | Status: new Priority: low | Milestone: 7.10.1 Component: GHC API | Version: 6.12.3 Resolution: | Keywords: Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: | Blocked By: None/Unknown | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by literon): * difficulty: => Unknown Comment: I would appreciate if this were addressed. In particular, I use GHC API for typechecking only and don't intend to evaluate expressions. I would handle killing the GHC thread myself if needed so. At minimum, a documentation comment should be added to `runGhc` that it installs signal handlers without restoring them to spare people from surprises. Note that non-responsiveness to Ctrl-C can be worked around by using `runGHC $ installHandler sigINT Default Nothing >> ...`. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4162#comment:10> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 0

[GHC] #9829: Installed signal handlers are not cleared up by GHC API
by GHC 24 Nov '14

24 Nov '14

#9829: Installed signal handlers are not cleared up by GHC API -------------------------------------+------------------------------------- Reporter: literon | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: GHC API | Version: 7.8.3 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Unknown | Type of failure: Blocked By: | None/Unknown Related Tickets: | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- When using runGHC, it calls installSignalHandlers which installs a bunch of them. There is even an XXX comment in runGHC to uninstall these eventually. Generally, when using the GHC API, I wouldn't like it to install any signal handlers by default, if that is possible. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9829> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

1 1