#8103: Segfault when passing unboxed Float# and Double# across modules ----------------------------------+--------------------------- Reporter: jstolarek | Owner: Type: bug | Status: new Priority: highest | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: Linux | Architecture: x86 Type of failure: Runtime crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: 6135 | Related Tickets: ----------------------------------+--------------------------- Changes (by simonmar): * priority: normal => highest * milestone: => 7.8.1 Comment: I tried and failed to reproduce this today, with a freshly built GHC on a 32-bit x86 Amazon EC2 instance running Ubuntu 12.04. {{{ ubuntu@ip-10-245-94-31:~/scratch$ ~/ghc/inplace/bin/ghc-stage2 8103.hs -fforce-recomp [1 of 2] Compiling AddWraps ( AddWraps.hs, AddWraps.o ) [2 of 2] Compiling Main ( 8103.hs, 8103.o ) Linking 8103 ... ubuntu@ip-10-245-94-31:~/scratch$ ./8103 0 }}} Incidentally the Cmm code above cannot be generated on x86, because it mentions D1 and D2 which are never used by the x86 backend. Maybe you generated it on x86_64? I'm stumped on this one - I tried the repro in #7953 too and that didn't crash for me either. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8103#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler