#13501: TH segmentation fault on Linux when calling function from another package -------------------------------------+------------------------------------- Reporter: jmaki | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.2 Keywords: | Operating System: Linux Architecture: x86_64 | Type of failure: Compile-time (amd64) | crash or panic Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- The bug was hit when using Buck (buckbuild.com) to build. I had two packages, A containing a single module with a TH function of type `TH.Q [TH.Dec]` and module B importing A it and calling that function at top-level. I've attached a tarball that reproduces the problem. I've verified that the problem occurs with 7.10.3, 8.0.2 and a semi-recent GHC HEAD from @bitonic. The issue doesn't occur on macOS and does not occur when the modules are in a single package or if the package is compiled as a shared library. The problem also does not occur when using stack, so this is likely related to how buck creates packages. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13501 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler