[GHC] #13501: TH segmentation fault on Linux when calling function from another package

[GHC]

#13501: TH segmentation fault on Linux when calling function from another package
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           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:
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 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.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13501>
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