{1} Bugs by priority (940 matches)

Lists all open bugs in order of priority.

Results (501 - 600 of 940)

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Ticket Summary Component Version Priority Severity Milestone Owner Status Created
#5954 Performance regression 7.0 -> 7.2 (still in 7.4) Compiler 7.4.1 normal 7.12.1 simonpj infoneeded Mar 20, 2012
#9979 Performance regression GHC 7.8.4 to GHC HEAD Compiler 7.11 normal new Jan 13, 2015
#6166 Performance regression in mwc-random since 7.0.x Compiler 7.4.2 normal 7.12.1 new Jun 15, 2012
#8990 Performance tests behave differently depending on presence of .hi file (even with -fforce-recomp) Test Suite 7.9 normal new Apr 12, 2014
#3231 Permission denied error with runProcess/openFile Core Libraries 6.10.4 normal normal 7.12.1 simonmar new May 15, 2009
#10301 Plugins/dynamic loading subtly broken (it seems) Compiler 7.8.2 normal 7.10.3 new Apr 14, 2015
#10524 PolyKinds doesn't interact well with DeriveFunctor Compiler 7.10.1 normal new Jun 15, 2015
#10516 PolyKinds results in incorrect reporting of type synonym parameter count Compiler 7.10.1 high 7.10.3 merge Jun 13, 2015
#5326 Polymorphic instances aren't automatically specialised Compiler 7.0.3 low 7.12.1 simonpj new Jul 15, 2011
#9730 Polymorphism and type classes Compiler (Type checker) 7.8.3 normal new Oct 27, 2014
#4288 Poor -fspec-constr-count=n warning messages Compiler 6.13 low 7.12.1 new Sep 4, 2010
#10495 Poor error message for Coercible constraint unsatisfiability Compiler 7.10.1 normal 7.10.3 goldfire merge Jun 5, 2015
#9803 Poor error message for unbound variable in pattern synonym Compiler (Type checker) 7.9 normal new Nov 15, 2014
#10715 Possible regression in Coercible a (X a) between 7.8 and 7.10 Compiler 7.10.1 normal goldfire new Jul 31, 2015
#9981 Potential typechecker regression in GHC 7.10.1RC Compiler (Type checker) 7.10.1-rc1 normal 7.12.1 simonpj new Jan 13, 2015
#1727 Precedence and associativity rules ignored when mixing infix type and data constructors in a single expression Compiler (Parser) 6.6.1 lowest minor 7.12.1 new Sep 22, 2007
#10379 Prefix syntax for promoted list kind isn't parsed properly Compiler (Parser) 7.10.1 low 7.12.1 goldfire new May 4, 2015
#9894 Presence of DWARF debug symbols doesn't result in working backtraces in GDB Compiler 7.9 normal scpmw new Dec 17, 2014
#9121 Presence of dyn_o files not checked upon recompilation Driver 7.8.3 normal new May 17, 2014
#8403 Pretty-printing of long types Compiler 7.6.3 lowest new Oct 3, 2013
#4101 Primitive constant unfolding Compiler 6.12.2 low 7.12.1 schyler new May 28, 2010
#8472 Primitive string literals prevent optimization Compiler 7.6.3 normal xnyhps new Oct 23, 2013
#7287 Primops in RULES generate warnings Compiler 7.7 normal 7.6.2 new Oct 1, 2012
#9494 Probable data corruption with GHCi 7.8.* and Zlib GHCi 7.8.3 normal infoneeded Aug 21, 2014
#1158 Problem with GADTs and explicit type signatures Compiler 6.6 lowest normal simonpj new Feb 20, 2007
#9421 Problems and workarounds when installing and using a 32bit GHC on 64bit Linux machine Compiler 7.8.3 normal MikolajKonarski new Aug 7, 2014
#10686 Process stops responding to sigINT Compiler 7.10.1 normal new Jul 25, 2015
#9105 Profiling binary consumes CPU even when idle on Linux. Runtime System 7.8.2 normal simonmar new May 13, 2014
#8948 Profiling report resolution too low Profiling 7.6.3 normal new Apr 2, 2014
#5654 Profiling semantics bug Profiling 7.2.1 low 7.12.1 simonmar new Nov 23, 2011
#6113 Profiling with -p not written if killed with SIGTERM Profiling 7.4.1 normal 7.12.1 new May 19, 2012
#9407 Program produces different output when compiled with -O Compiler 7.8.3 normal new Aug 5, 2014
#9607 Programs that require AllowAmbiguousTypes in 7.8 Compiler (Type checker) 7.8.3 normal new Sep 18, 2014
#10077 Providing type checker plugin on command line results in false cyclic import error Compiler (Type checker) 7.11 normal new Feb 10, 2015
#10295 Putting SCC in heavily inlined code results in "error: redefinition of global" Compiler 7.10.1 normal infoneeded Apr 13, 2015
#1147 Quadratic behaviour in the compacting GC Runtime System 6.6 normal normal new Feb 14, 2007
#10781 Qualified use of undefined name starting with underscore considered a hole Compiler 7.10.2 normal new Aug 19, 2015
#5376 Quotation in System.Process.system for Windows Core Libraries 7.0.4 low 7.12.1 snoyberg new Aug 4, 2011
#8665 RELEASE_LOCK: I do not own this lock Runtime System 7.6.3 normal infoneeded Jan 12, 2014
#10576 REPL returns list of all imported names when operator completion requested GHCi 7.8.4 normal Geraldus new Jun 26, 2015
#10590 RTS failing with removeThreadFromDeQueue: not found message Compiler 7.10.1 normal 7.10.3 slyfox merge Jun 30, 2015
#10555 RULE left-hand side too complicated to desugar Compiler 7.0.4 low new Jun 21, 2015
#7398 RULES don't apply to a newtype constructor Compiler 7.6.1 normal 7.12.1 new Nov 8, 2012
#9292 Race condition when multiple threads wait for a process Core Libraries 7.8.2 normal ekmett new Jul 10, 2014
#8346 Rank 1 type signature still requires RankNTypes Compiler (Type checker) 7.6.3 normal new Sep 23, 2013
#4451 Re-linking avoidance is too aggressive Compiler 7.1 normal 7.12.1 new Oct 29, 2010
#8671 Rebindable syntax creates bogus warning Compiler (Type checker) 7.6.3 normal new Jan 15, 2014
#7828 RebindableSyntax and Arrow Compiler (Type checker) 7.6.2 normal 7.12.1 new Apr 10, 2013
#7277 Recompilation check fails for TH unless functions are inlined Template Haskell 7.4.2 normal 7.12.1 new Sep 28, 2012
#10520 RecordWildCards causes “is not a (visible) field of constructor” in ghci GHCi 7.10.1 normal 7.10.3 merge Jun 14, 2015
#7063 Register allocators can't handle non-uniform register sets Compiler (NCG) 7.4.2 normal 7.12.1 benl new Jul 9, 2012
#8048 Register spilling produces ineffecient/highly contending code Compiler (CodeGen) 7.6.3 normal new Jul 10, 2013
#10568 Regression from 7.8.4, loading GLUT into GHCI fails on the Mac Compiler 7.10.2-rc1 normal 7.10.3 darchon merge Jun 24, 2015
#7679 Regression in -fregs-graph performance Compiler (NCG) 7.6.2 low 7.12.1 new Feb 11, 2013
#10034 Regression in mapM_ performance Core Libraries 7.10.1-rc2 normal 7.12.1 bgamari new Jan 27, 2015
#7450 Regression in optimisation time of functions with many patterns (6.12 to 7.4)? Compiler 7.6.1 normal 7.12.1 bgamari patch Nov 26, 2012
#10053 Regression on MacOS platform, error in ghci calling main after loading compiled code: "Too late for parseStaticFlags..." GHCi 7.10.1-rc2 normal 7.10.3 new Jan 31, 2015
#10712 Regression: make TEST=exceptionsrun001 WAY=optasm is failing Compiler 7.11 high 7.12.1 new Jul 30, 2015
#8953 Reification drops necessary kind annotations Template Haskell 7.10.1 normal 7.12.1 goldfire new Apr 3, 2014
#5369 Reinstate VECTORISE pragmas with expressions as right-hand sides Data Parallel Haskell 7.0.4 normal 7.12.1 chak new Aug 2, 2011
#9693 Reloading GHCi with Template Haskell names can panic GHC Template Haskell 7.8.3 normal new Oct 15, 2014
#10692 Replace (SourceText,FastString) with WithSourceText data type Compiler 7.11 normal alanz new Jul 26, 2015
#10554 Replacing existing attachment with the same name doesn't work Trac & Git 7.10.1 lowest hvr new Jun 21, 2015
#10631 Report of GHC Panic Compiler 7.10.1 low new Jul 12, 2015
#3138 Returning a known constructor: GHC generates terrible code for cmonad Compiler 6.10.1 lowest normal 7.12.1 new Apr 2, 2009
#7611 Rewrite rules application prevented by type variable application (map id vs. map (\x -> x)) Compiler 7.6.2 normal 7.12.1 new Jan 21, 2013
#8177 Roles for type families Compiler 7.6.3 normal goldfire new Aug 27, 2013
#7511 Room for GHC runtime improvement >~5%, inlining related Compiler 7.6.1 normal 7.12.1 new Dec 19, 2012
#10417 Rule matching not "seeing through" floating and type lambda (and maybe cast) Compiler 7.10.1 normal new May 14, 2015
#3765 Rules should "look through" case binders too Compiler 6.12.1 normal new Dec 16, 2009
#10437 RunHaskell error in HSExtra on Win64 Compiler 7.8.3 normal new May 21, 2015
#9520 Running an action twice uses much more memory than running it once Compiler 7.8.3 normal new Aug 28, 2014
#10611 Runtime crash while running psc Compiler 7.8.3 normal new Jul 7, 2015
#5188 Runtime error when allocating lots of memory Runtime System 6.12.1 low 7.12.1 infoneeded May 10, 2011
#9579 Runtime suggests using +RTS when that's not possible Runtime System 7.9 low 7.12.1 new Sep 11, 2014
#10434 SPECIALISE instance does not specialize as far as SPECIALISE for type signatures Compiler 7.8.3 normal new May 19, 2015
#5463 SPECIALISE pragmas generated from Template Haskell are ignored Template Haskell 7.2.1 normal new Sep 5, 2011
#10767 SPECIALIZE generates warning but works fine Compiler 7.10.2 normal new Aug 11, 2015
#8668 SPECIALIZE silently fails to apply Compiler 7.8.3 normal new Jan 14, 2014
#8114 STG lint panic Compiler 7.6.3 normal new Aug 4, 2013
#2028 STM slightly conservative on write-only transactions Compiler 6.8.1 lowest normal 7.12.1 new Jan 9, 2008
#10368 STM test failing on Armhf/Linux Compiler 7.11 normal 7.12.1 new May 1, 2015
#10690 Save merged signatures to disk Compiler 7.10.1 normal new Jul 25, 2015
#10296 Segfaults when using dynamic wrappers and concurrency Compiler 7.11 normal new Apr 13, 2015
#4505 Segmentation fault on long input (list of pairs) Compiler 7.0.1 high 7.12.1 bgamari new Nov 17, 2010
#7625 Semicolon is not handled between imports at the ghci command prompt GHCi 7.4.2 normal 7.12.1 new Jan 25, 2013
#10199 Sending SIGINT to a program that uses forkOS may crash with various errors Runtime System 7.10.1 low simonmar new Mar 27, 2015
#10037 Several profiling tests give different results optimised vs. unoptimised Profiling 7.10.1-rc2 normal 7.12.1 new Jan 28, 2015
#7307 Share top-level code for strings Compiler 7.6.1 normal 7.12.1 parcs new Oct 8, 2012
#5645 Sharing across functions causing space leak Compiler 7.2.1 normal 7.12.1 Alexander.Pakhomov new Nov 17, 2011
#10350 Should be able to specify path for eventlog output. Runtime System 7.10.1 normal simonmar new Apr 24, 2015
#9927 Should simplifier try more iterations? Compiler 7.11 normal new Dec 26, 2014
#6101 Show instance for integer-simple is not lazy enough Core Libraries 7.4.1 normal 7.12.1 ekmett new May 17, 2012
#10472 SigOf tests fail following renamer tidy-up Compiler 7.10.1 normal new Jun 1, 2015
#9533 Signed/unsigned integer difference between compiled and interpreted code Compiler 7.8.3 high new Aug 31, 2014
#10124 Simple case analyses generate too many branches Compiler 7.8.4 normal new Feb 28, 2015
#9646 Simplifer non-determinism leading to 8 fold difference in run time performance Compiler 7.8.3 normal 7.10.1 new Sep 29, 2014
#7057 Simplifier infinite loop regression Compiler 7.4.2 normal 7.12.1 simonpj new Jul 7, 2012
#8319 Simplifier ticks exhausted (need -fsimpl-tick-factor=955) Compiler 7.6.3 normal new Sep 17, 2013
#9235 Simplifier ticks exhausted on recursive class method Compiler 7.8.2 normal new Jun 24, 2014
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