#7655: 7.6.2 Segmentation Fault/Bus Error in large exponentation -------------------------------+-------------------------------------- Reporter: Doug310 | Owner: rwbarton Type: bug | Status: new Priority: highest | Milestone: 8.2.1 Component: GHCi | Version: 7.8.1-rc1 Resolution: | Keywords: gmp Operating System: MacOS X | Architecture: x86_64 (amd64) Type of failure: GHCi crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D3044 Wiki Page: | -------------------------------+-------------------------------------- Comment (by Ben Gamari ): In [changeset:"32729d3586d7ecdeb8561b6d0b2a688db709560c/ghc" 32729d35/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="32729d3586d7ecdeb8561b6d0b2a688db709560c" Turn libraries/integer-gmp/gmp/tarball into a submodule The submodule repository contains the latest version of the GMP source distribution (6.1.2) with the doc/ subdirectory removed, as described in gmp/ghc.mk. Rather than applying the old patch from gmp/tarball/patch I moved its contents into gmp/gmpsrc.patch, canceling a patch related to memory management there. Experimentally, the PIC-related patch for OS X is still necessary. The upgrade to GMP 6.1.2 fixes #7655. Test Plan: Built on OS X with in-tree gmp and tested that the command `ghc -e 'length (show (2^(5*10^6) :: Integer))'` no longer segfaults. Reviewers: mpickering, hvr, austin, bgamari Reviewed By: bgamari Subscribers: mpickering, thomie Differential Revision: https://phabricator.haskell.org/D3044 GHC Trac Issues: #7655 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7655#comment:58 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler