Issues · Glasgow Haskell Compiler / GHC

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DPH bad sliceP causes RTS panic "allocGroup: requested zero blocks"

#3903 · opened Mar 01, 2010 by benl ⊥ 3 Data Parallel Haskell Plow Tbug Trac import compiler crash
- 9
updated Jul 07, 2019
ghc panic when attempting to compile DPH code

#3960 · opened Apr 05, 2010 by jwlato ⊥ 0 Data Parallel Haskell Plow Tbug Trac import compiler crash
- 11
updated Jul 07, 2019
check_overlap panic (7.1 regression)

#5320 · opened Jul 13, 2011 by mikhail.vorozhtsov 8.0.1 5 Pnormal Tbug Trac import compiler crash
- 13
updated Jul 07, 2019
GHC loops on compiling with optimizations

#5400 · opened Aug 10, 2011 by noschinl 5 Pnormal Russell paradox Tbug Trac import compiler crash
- 4
updated Feb 02, 2021
GHC stuck in infinite loop compiling with optimizations

#5448 · opened Aug 31, 2011 by ronwalf 5 Pnormal Russell paradox Tbug Trac import compiler crash
- 14
updated Feb 02, 2021
The DPH library needs to support PData and PRepr instances for more than 15-tuples

#5470 · opened Sep 08, 2011 by Manuel M T Chakravarty ⊥ 5 Data Parallel Haskell Pnormal Tbug Trac import compiler crash
- 6
updated Jul 07, 2019
simple program fails with -shared on mac

#5495 · opened Sep 17, 2011 by mwotton 8.0.1 3 Plow Tbug Trac import compiler crash
- 13
updated Jul 07, 2019
GHC inlines class method forever

#5722 · opened Dec 24, 2011 by benmachine 5 Pnormal Russell paradox Tbug Trac import compiler crash
- 5
updated Feb 02, 2021
Top level splice in Template Haskell has over-ambitious lexical scope?

#5959 · opened Mar 22, 2012 by mightybyte 8.0.1 3 Plow Tbug Trac import compiler crash error messages
- 13
updated Jul 07, 2019
Simplifier infinite loop regression

#7057 · opened Jul 07, 2012 by ronwalf ⊥ 5 Pnormal Russell paradox Tbug Trac import compiler crash
- 7
updated Feb 02, 2021
Panic using mixing list with parallel arrays incorrectly

#7078 · opened Jul 16, 2012 by NeilJ 8.0.1 5 Pnormal Tbug Trac import compiler crash
- 9
updated Jul 07, 2019
getTokenStream fails for source using cpp

#8265 · opened Sep 10, 2013 by Alan Zimmerman 5 GHC API Pnormal Tbug Trac import compiler crash
- 6
updated Jul 07, 2019
The impossible happened: primRepToFFIType

#8281 · opened Sep 13, 2013 by tibbe 8.6.1 5 Pnormal Tbug Trac import compiler crash
- 35
updated Jul 07, 2019
Simplifier ticks exhausted (need -fsimpl-tick-factor=955)

#8319 · opened Sep 17, 2013 by ruudkoot 5 Pnormal Tbug Trac import compiler crash
- 5
updated Jul 07, 2019
Compile-time panic

#8484 · opened Oct 29, 2013 by Taymon 5 Pnormal Tbug Trac import compiler crash
- 4
updated Jul 07, 2019
Simplifier ticks exhausted on recursive class method

#9235 · opened Jun 24, 2014 by klao ⊥ 5 Pnormal Russell paradox Tbug Trac import compiler crash
- 1
updated Feb 02, 2021
GHC not recognizing INPUT(-llibrary) in linker scripts

#9237 · opened Jun 25, 2014 by mmikolajczyk 8.0.1 5 Pnormal Tbug Trac import compiler crash
- 12
updated Jul 07, 2019
GHC instantiates Data instances before checking hs-boot files

#9450 · opened Aug 17, 2014 by Alan Zimmerman 5 Pnormal Tbug Trac import compiler crash deriving hs-boot
- 7
updated Jul 07, 2019
GHC fails with "Loading temp shared object failed"

#9704 · opened Oct 18, 2014 by MaxGabriel 5 Pnormal Tbug Trac import compiler crash
- 2
updated Jul 07, 2019
ghc "panic! (the 'impossible' happened)" building vimus on NixOS

#9825 · opened Nov 21, 2014 by jzellner 5 Pnormal Tbug Trac import compiler crash
- 6
updated Jul 07, 2019
GHC's link step needs to be told which packages to link

#9938 · opened Dec 29, 2014 by Joachim Breitner 5 Pnormal Tbug Trac import compiler crash
- 10
updated Jul 07, 2019
GHC panic with ViewPatterns and GADTs in a proc pattern

#9985 · opened Jan 14, 2015 by Rafbill 5 Arrows GADTs Pnormal Tbug Trac import compiler crash typechecker
- 2
updated Oct 31, 2019
Panic: RegAlloc.Liveness.computeLivenss; SCCs aren't in reverse dependent order; bad blockId c8xHd

#10187 · opened Mar 24, 2015 by Miëtek Bak 5 Pnormal Tbug Trac import compiler crash
- 1
updated Jul 07, 2019
Excessive numbers of packages loaded for TH

#10436 · opened May 20, 2015 by duncan 5 Pnormal Tbug Trac import compiler crash
- 4
updated Jul 07, 2019
ghc crash on arm with -j2: internal error: scavenge: unimplemented/strange closure type

#10469 · opened May 31, 2015 by joeyhess 5 Pnormal Tbug Trac import compiler crash
- 6
updated Jul 07, 2019
Report of GHC Panic loading temp shared object

#10631 · opened Jul 12, 2015 by seewalker 3 Plow Tbug Trac import compiler crash info needed
- 3
updated Jul 07, 2019
-fth-dec-file uses qualified names from hidden modules

#10701 · opened Jul 28, 2015 by Fabian 8.0.1 5 Pnormal Tbug TemplateHaskell Trac import compiler crash
- 7
updated Jul 07, 2019
GHC panic when compiling vimus: failed to map segment from shared object

#10761 · opened Aug 08, 2015 by haasn 5 Pnormal Tbug Trac import compiler crash
- 8
updated Jul 07, 2019
Typed hole inside typed Template Haskell bracket causes panic

#10946 · opened Oct 08, 2015 by Jan Stolarek 8.10.2 7 Phigh Tbug TemplateHaskell Trac import broken test compiler crash typed TemplateHaskell
- 16
updated Jan 21, 2020
[bug] ModOrigin: hidden module redefined

#11050 · opened Nov 02, 2015 by codeonwort 8.0.1 5 Pnormal Tbug Trac import compiler crash
- 3
updated Jul 26, 2019
GHC panic: simplifier ticks exhausted

#12274 · opened Jun 30, 2016 by mrkkrp 5 Pnormal Tbug Trac import compiler crash
- 4
updated Jul 07, 2019
ghc: internal error: TSO object entered

#12383 · opened Jul 12, 2016 by aufheben 5 Pnormal Tbug Trac import compiler crash
- 1
updated Jul 07, 2019
GHC segfault while linking llvm-general while compiling a file using Template Haskell

#12527 · opened Aug 23, 2016 by HMPerson1 5 Pnormal Tbug Trac import compiler crash
- 3
updated Jul 07, 2019
GHC panic due to bindnow linker flag

#12684 · opened Oct 10, 2016 by basvandijk 3 Plow Tbug Trac import compiler crash
- 0
updated Jul 07, 2019
Loading temp shared object failed: TemplateHaskell and recompilation

#12983 · opened Dec 15, 2016 by StefanWehr 5 Pnormal Tbug TemplateHaskell Trac import compiler crash recompilation checking
- 6
updated Jul 07, 2019
panic when using IrredPreds in a type checker plugin.

#12991 · opened Dec 16, 2016 by owen 5 Pnormal Tbug Trac import compiler crash
- 5
updated Jul 07, 2019
Simplifier ticks exhausted: a 10-line case

#13011 · opened Dec 20, 2016 by L.K.Rebellion 0 Plow Tbug Trac import compiler crash simplifier
- 3
updated Jul 07, 2019
Simplifier ticks exhausted

#13134 · opened Jan 16, 2017 by Fumiaki Kinoshita 3 Plow Ttask Trac import compiler crash
- 3
updated Jul 07, 2019
Ticks panic

#13195 · opened Jan 27, 2017 by mojojojo 5 Pnormal Tbug Trac import compiler crash
- 4
updated Jul 07, 2019
typePrimRep panic while compiling GHC with profiling

#13233 · opened Feb 05, 2017 by Ben Gamari 9.2.1 7 Phigh Tbug Trac import compiler crash
- 42
updated Jan 23, 2021
"Panic: no skolem info" with StaticPointers and typed hole

#13499 · opened Mar 30, 2017 by Otini 5 Pnormal StaticPointers Tbug Trac import compiler crash typed holes
- 8
updated Jul 07, 2019
TH segmentation fault on Linux when calling function from another package

#13501 · opened Mar 30, 2017 by jmaki 5 Pnormal Tbug Trac import compiler crash
- 10
updated Jul 07, 2019
Lint error in arrows program

#13547 · opened Apr 08, 2017 by cipher1024 5 Arrows Pnormal Tbug Trac import compiler crash
- 35
updated Nov 14, 2020
test dynamic-paper for way profasm fails with Simplifier ticks exhausted

#13715 · opened May 17, 2017 by george.colpitts Research needed 5 Pnormal Tbug Trac import compiler crash simplifier
- 8
updated Jul 07, 2019
Recover gracefully from simplifier tick exhaustion

#13723 · opened May 18, 2017 by David Feuer 5 Pnormal Tfeature request Trac import compiler crash
- 4
updated Jan 23, 2020
ghc panic compiling lame-0.1.1

#13956 · opened Jul 10, 2017 by uznx 8.2.2 5 Pnormal Tbug Trac import compiler crash
- 5
updated Jul 07, 2019
GHCi panic: "Loading temp shared object failed" when adding a new module

#13997 · opened Jul 19, 2017 by mbieleck 5 GHCi Pnormal Tbug Trac import compiler crash
- 0
updated Jul 07, 2019
Typed holes regression in GHC 8.0.2: No skolem info: z_a1sY[sk:2]

#14040 · opened Jul 27, 2017 by Ryan Scott 5 Pnormal Tbug Trac import TypeFamilies TypeInType compiler crash partial type sigs typechecker typed holes
- 17
updated Jan 23, 2020
Compiling with --backpack with undefined dependency results in "the 'impossible' happened"

#14063 · opened Jul 30, 2017 by rcook 5 Pnormal Tbug Trac import backpack compiler crash
- 2
updated Jul 07, 2019
GHC HEAD's ghc-stage1 panics on Data.Typeable.Internal

#14270 · opened Sep 22, 2017 by Herbert Valerio Riedel 9.2.1 7 Phigh Tbug Trac import Typeable compiler crash
- 23
updated Jan 23, 2021
System-wide installed profile build cannot load libHSghc-prim.0.5.2.0.so

#14512 · opened Nov 22, 2017 by Tobias Dammers 5 Pnormal Tbug Trac import compiler crash
- 6
updated Jan 23, 2020
Make GHC more robust against PC crashes by using atomic writes

#14533 · opened Nov 27, 2017 by Niklas Hambüchen 5 Pnormal Tbug Trac import compiler crash newcomer
- 11
updated Mar 02, 2021
Unable to parse integer-gmp's Cabal file

#14558 · opened Dec 06, 2017 by taylorfausak 5 Pnormal Tbug Ttask Trac import compiler crash core libraries
- 50
updated Jul 07, 2019
Internal error when compiling TH code with profiling on Windows

#14576 · opened Dec 13, 2017 by lazac 5 GHC API Pnormal Tbug Trac import Windows compiler crash linking remote GHCi
- 6
updated Jul 07, 2019
Internal error when linker is initialized with -fexternal-interpreter set when compiling TH code with profiling

#14577 · opened Dec 13, 2017 by lazac 5 GHC API Pnormal Tbug Trac import Windows compiler crash remote GHCi
- 0
updated Jul 07, 2019
capi panic (toCType Int#)

#14624 · opened Jan 01, 2018 by tianxiaogu 5 Pnormal Tbug Trac import compiler crash
- 5
updated Jul 07, 2019
Simplifier Ticks Exhausted when compiling with profiling

#14637 · opened Jan 04, 2018 by cfhammill 5 Pnormal Tbug Trac import compiler crash compiler perf simplifier
- 1
- 25
updated Mar 11, 2021
ghc panic: mergeSATInfo

#14649 · opened Jan 08, 2018 by tianxiaogu 5 Pnormal Tbug Trac import compiler crash static argument transformation
- 16
updated Mar 26, 2021
The interpreter showed panic! (the 'impossible' happened)

#14679 · opened Jan 17, 2018 by crick_ 5 Pnormal Tbug Trac import compiler crash
- 1
updated Jul 07, 2019
Levity polymorphism panic

#14765 · opened Feb 05, 2018 by David Feuer 5 Pnormal Tbug Trac import compiler crash
- 7
updated Mar 29, 2021
Linking error with ANN pragma

#14829 · opened Feb 20, 2018 by ehubinette 5 Pnormal Tbug Trac import compiler crash
- 3
updated Jul 07, 2019
The well-kinded type invariant (in TcType)

#14873 · opened Mar 01, 2018 by Ryan Scott 9.2.1 10 Phighest Tbug Trac import TypeInType compiler crash typechecker
- 12
updated Jan 23, 2021
Compiling using O1 works but panic using O2 or O3

#14908 · opened Mar 10, 2018 by josejuan 5 Pnormal Tbug Trac import compiler crash
- 2
updated Jul 07, 2019
Memory usage exploding for complex pattern matching

#14987 · opened Mar 30, 2018 by vmiraldo 5 Pnormal Tbug Trac import compiler crash compiler perf
- 18
updated May 02, 2020
ghci: dynamic linking fails on osx

#15516 · opened Aug 13, 2018 by kfiz 8.6.1 5 GHCi Pnormal Tbug Trac import compiler crash
- 1
updated Jul 07, 2019
RebindableSyntax with RankNTypes and type class method call yields panic.

#15598 · opened Sep 03, 2018 by Roman Borschel 5 Pnormal RankNTypes RebindableSyntax Tbug Trac import compiler crash
- 4
updated Jun 17, 2020
Panicking typechecker plugins

#15745 · opened Oct 13, 2018 by Phil de Joux 5 Pnormal Tfeature request Trac import compiler crash plugins typechecker plugins
- 1
- 2
updated Jul 07, 2019
Improve error message: Reduction stack overflow when using "coerce"

#15928 · opened Nov 21, 2018 by harendra 8.6.3 5 Pnormal Tbug Trac import compiler crash
- 9
updated Jul 07, 2019
Core Lint error with LiberalTypeSynonyms

#15979 · opened Nov 30, 2018 by Ryan Scott 5 Pnormal Tbug Trac import compiler crash
- 31
updated Mar 21, 2021
Backpack accepts ill-kinded instantiations. Can cause GHC panic

#15984 · opened Dec 01, 2018 by aaronvargo 8.6.3 5 Pnormal Tbug Trac import backpack compiler crash
- 6
updated Jul 07, 2019
tyThingCoAxiom panics while building Agda

#16028 · opened Dec 10, 2018 by Ilias Tsitsimpis 8.6.4 5 Pnormal Tbug Trac import compiler crash info needed
- 2
updated Jul 07, 2019
ghc-8.6.3 + Mac OSX + FFI dependency causes 'impossible happened' compiler failure

#16063 · opened Dec 17, 2018 by benselfridge 5 Pnormal Tbug Trac import compiler crash
- 7
updated Feb 13, 2020
Internal compiler error when instance uses FFI function and defining other instance of the same class through Template Haskell

#16076 · opened Dec 20, 2018 by radekchannable 5 Pnormal Tbug Trac import compiler crash
- 4
updated Feb 17, 2020
Infinite loop during error reporting (ignores SIGINT/SIGTERM, then OOMs)

#16095 · opened Dec 26, 2018 by Serge Kosyrev 5 Pnormal Tbug Trac import compiler crash
- 4
updated Jul 07, 2019
Panic: piResultTys1 in compiler/types/Type.hs:1022:5

#16127 · opened Jan 04, 2019 by Serge Kosyrev 5 Pnormal Tbug Trac import compiler crash hs-boot typechecker
- 16
updated May 27, 2020
Panic with ExistentialQuantification and ApplicativeDo

#16135 · opened Jan 06, 2019 by Ashley Yakeley 5 ApplicativeDo Pnormal Tbug Trac import compiler crash
- 2
updated Jul 07, 2019
GHC HEAD-only Core Lint error with unboxed equality (Non-CoVar has coercion type)

#16246 · opened Jan 27, 2019 by Ryan Scott 5 Pnormal Tbug Trac import compiler crash
- 6
updated Jan 23, 2020
ghc: internal error: getMBlock: mmap: Invalid argument (gi-gtk on armv7)

#16383 · opened Mar 04, 2019 by Jens Petersen 5 Pnormal Tbug Trac import compiler crash
- 0
updated Jul 07, 2019
powerpc: SCCs aren't in reverse dependent order

#16465 · opened Mar 19, 2019 by Sergei Trofimovich PowerPC Tbug compiler crash
- 5
updated Oct 31, 2019
SIGSEGV in GHCi when accelerate in set of dependencies

#16587 · opened Apr 18, 2019 by SDNW GHCi Tbug compiler crash info needed
- 2
updated Apr 18, 2019
T7702 segfaults on Windows

#16799 · opened Jun 11, 2019 by Ben Gamari Tbug Windows compiler crash
- 7
updated Feb 14, 2020
"panic! (the 'impossible' happened)" attempting to print the contents of a mutable vector in GHCi

#16840 · opened Jun 18, 2019 by Anthony Berent GHCi Tbug compiler crash debugger
- 4
updated Apr 13, 2020
[8.6] ModOrigin: hidden module redefined

#16996 · opened Jul 26, 2019 by jwaldmann GHCi Pnormal Tbug compiler crash
- 23
updated Feb 22, 2021
Another loop with injective type families

#17186 · opened Sep 12, 2019 by Richard Eisenberg Tbug TypeFamilies compiler crash injective type families typechecker
- 0
updated Nov 10, 2020
ghc-8.6.5 fails to build gtk2hs-buildtools on ppc64le

#17203 · opened Sep 18, 2019 by Jens Petersen PowerPC Tbug compiler crash
- 4
updated Jul 20, 2020
T13615 fails in unrelated MRs

#17269 · opened Sep 28, 2019 by Sebastian Graf 8.10.2 CI breakage Tbug broken test compiler crash
- 5
updated Jan 21, 2020
Data family instances aren't eta-reduced correctly

#17305 · opened Oct 04, 2019 by Ryan Scott 8.10.2 GADTs TemplateHaskell TypeFamilies compiler crash
- 14
updated Dec 14, 2020
:kind! should adhere to -freduction-depth

#17306 · opened Oct 04, 2019 by Jakob Brünker GHCi Pnormal Tbug compiler crash typechecker
- 1
- 1
updated Oct 09, 2019
Segfaults on Intel Goldmont Plus Atom CPU

#17445 · opened Nov 07, 2019 by Julian Stecklina Phigh Tbug compiler crash info needed
- 6
updated Apr 12, 2021
StandaloneKindSignatures/TH panic (updateRole) when reusing unique names

#17537 · opened Dec 03, 2019 by Ryan Scott StandaloneKindSignatures Tbug TemplateHaskell compiler crash
- 1
updated Dec 10, 2019
Loop in the constraint solver around variables free in kinds

#17644 · opened Jan 06, 2020 by Richard Eisenberg Pnormal Tbug compiler crash typechecker
- 15
updated Jan 20, 2020
Using default methods with (r ~ LiftedRep) leads to Iface Lint failure

#17723 · opened Jan 21, 2020 by Ryan Scott DefaultSignatures Phigh Tbug compiler crash levity polymorphism
- 10
updated Mar 10, 2021
Using a debug enabled build to compile nofib revealed some warnings.

#17784 · opened Feb 03, 2020 by Andreas Klebinger Pnormal Tbug compiler crash
- 2
updated Jan 22, 2021
Assertion failure with levity polymorphism

#17817 · opened Feb 11, 2020 by Krzysztof Gogolewski Phigh Tbug compiler crash levity polymorphism
- 4
updated Feb 17, 2020
runtimeRepPrimRep panic when combining UnboxedTuples with -fhpc or {-prof,-fprof-auto}

#17846 · opened Feb 17, 2020 by Ryan Scott HPC Tbug UnboxedTuples compiler crash levity polymorphism profiling
- 5
updated Mar 11, 2020
Backpack fails with: Can't find interface-file declaration

#17942 · opened Mar 22, 2020 by Andrew Martin Pnormal Tbug backpack compiler crash
- 0
updated Mar 22, 2020
Combination of unboxed sums and unsafeCoerce# causes compiler panics

#18152 · opened May 06, 2020 by Ömer Sinan Ağacan Plow Tbug compiler crash
- 1
updated May 09, 2020
GHC crash "urk! lookup local fingerprint"

#18186 · opened May 14, 2020 by Adrien Surée Phigh Tbug compiler crash
- 3
updated Jun 24, 2020
Unable to compile Pandoc-2.9.2.1 with ghc-8.10.1 on i586

#18284 · opened Jun 02, 2020 by mimi.vx 8.10.5 Phigh Tbug compiler crash info needed
- 7
updated Feb 14, 2021
Dynamic linker not initialised

#18293 · opened Jun 03, 2020 by reallymemorable GHCi Pnormal Tbug compiler crash linking
- 0
updated Nov 05, 2020