[GHC] #8371: ghci byte compiler + FFI crashes when used with embedded R

[GHC]

#8371: ghci byte compiler + FFI crashes when used with embedded R
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        Reporter:  dsamperi    |            Owner:
            Type:  bug         |           Status:  new
        Priority:  normal      |        Milestone:
       Component:  GHCi        |          Version:  7.6.3
      Resolution:              |         Keywords:
Operating System:  Linux       |     Architecture:  x86_64 (amd64)
 Type of failure:  GHCi crash  |       Difficulty:  Unknown
       Test Case:              |       Blocked By:
        Blocking:              |  Related Tickets:
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Comment (by dsamperi):

 I accidentally replied to you in gmail (sent to ghc-devs) instead of in
 this comment
 thread, sorry! Your comment combined with the suggestion that I use
 ghc-7.7 provides
 a work-around.

 I tried disabling R's stack limit checks, but this leads to a segfault.

 A correct workaround is to use the flag -fno-ghci-sandbox, as this
 prevents
 ghci from forking a thread (all computations are run in the main thread).
 As
 noted previously R is not thread-safe.

 This eliminates the "C stack usage" error messages, but there is still a
 segfault when ghc-7.6.3 is used (and a non-trivial computation is done).
 Using ghc-7.7 fixes this.

 Thanks!

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8371#comment:7>
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