[GHC] #9971: GHC 7.10 dies with "out of memory"

[GHC]

#9971: GHC 7.10 dies with "out of memory"
-------------------------------------+-------------------------------------
              Reporter:  albertov    |             Owner:
                  Type:  bug         |            Status:  new
              Priority:  normal      |         Milestone:
             Component:  Compiler    |           Version:  7.10.1-rc1
              Keywords:              |  Operating System:  Linux
          Architecture:  x86_64      |   Type of failure:  Compile-time
  (amd64)                            |  crash
             Test Case:              |        Blocked By:
              Blocking:              |   Related Tickets:
Differential Revisions:              |
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 I'm trying to build my [https://github.com/meteogrid/sigym4-geometry
 library] with `cabal 1.22` and `ghc-7.10.0.20141222` but it ultimately
 crashes with `ghc: out of memory (requested 2097152 bytes)`. The VM I've
 used to build it has 8gb of RAM. The same library compiles fine with `ghc
 7.8.3` so I guess it is a GHC bug.

 Unfortunately I'm not able to reduce it to a simple case or relate it to a
 previous bug. The build log can be seen at [https://travis-
 ci.org/meteogrid/sigym4-geometry/builds/46370766 travis-ci] and the source
 code is freely available so it should be easy to reproduce

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9971>
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