[GHC] #9878: Static pointers in GHCi cause panic

[GHC]

#9878: Static pointers in GHCi cause panic
-------------------------------------+-------------------------------------
        Reporter:  monoidal          |                   Owner:
            Type:  bug               |  facundo.dominguez
        Priority:  normal            |                  Status:  patch
       Component:  Compiler          |               Milestone:  7.10.1
      Resolution:                    |                 Version:  7.9
Operating System:  Unknown/Multiple  |                Keywords:
 Type of failure:  GHCi crash        |            Architecture:
      Blocked By:                    |  Unknown/Multiple
 Related Tickets:                    |               Test Case:
                                     |                Blocking:
                                     |  Differential Revisions:  Phab:D586
                                     |  Phab:D587
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Comment (by Austin Seipp <austin@…>):

 In [changeset:"7637810a93441d29bc84bbeeeced0615bbb9d9e4/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="7637810a93441d29bc84bbeeeced0615bbb9d9e4"
 Trac #9878: Have StaticPointers support dynamic loading.

 Summary:
 A mutex is used to protect the SPT.

 unsafeLookupStaticPtr and staticPtrKeys in GHC.StaticPtr are made
 monadic.

 SPT entries are removed in a destructor function of modules.

 Authored-by: Facundo Domínguez <facundo.dominguez at tweag.io>
 Authored-by: Alexander Vershilov <alexander.vershilov at tweag.io>

 Test Plan: ./validate

 Reviewers: austin, simonpj, hvr

 Subscribers: carter, thomie, qnikst, mboes

 Differential Revision: https://phabricator.haskell.org/D587

 GHC Trac Issues: #9878
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9878#comment:19>
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