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  • #15475

Closed
Open
Opened Aug 03, 2018 by Matthew Pickering@mpickeringDeveloper

Plugin recompilation check still panics

I get a panic as follows when trying to use a plugin with the latest commit on the 8.6 branch.

<no location info>: error:
    ghc: panic! (the 'impossible' happened)
  (GHC version 8.6.1.20180803 for x86_64-unknown-linux):
	mkPluginUsage: file not found
  LiftPlugin /nix/store/q8rg4mca5zqv98arpxd7164pqa72hf1n-ncurses-6.1/lib/libHSlift-plugin-0.1.0.0-LpWZumtLigSEjndVxGCyUH-ghc8.6.1.20180803.so
  Call stack:
      CallStack (from HasCallStack):
        callStackDoc, called at compiler/utils/Outputable.hs:1164:37 in ghc:Outputable
        pprPanic, called at compiler/deSugar/DsUsage.hs:215:15 in ghc:DsUsage

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

My example is nixified and not very minimal but I can provide it tomorrow if that would help.

Trac metadata
Trac field Value
Version 8.4.3
Type Bug
TypeOfFailure OtherFailure
Priority highest
Resolution Unresolved
Component Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture
Assignee
Assign to
8.6.1
Milestone
8.6.1 (Past due)
Assign milestone
Time tracking
None
Due date
None
Reference: ghc/ghc#15475