#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: ----------------------------------+--------------------------- Comment (by jstolarek): I still can reproduce it on one of the older HEAD builds: {{{ [t-jastol@cam-05-unx : ~/tests/bool-primops/T8103] /5playpen/t-jastol/sandboxes/ghc/master-i386/bin/ghc --print-build- platform i386-unknown-linux [t-jastol@cam-05-unx : ~/tests/bool-primops/T8103] /5playpen/t-jastol/sandboxes/ghc/master-i386/bin/ghc --print-target- platform i386-unknown-linux [t-jastol@cam-05-unx : ~/tests/bool-primops/T8103] /5playpen/t-jastol/sandboxes/ghc/master-i386/bin/ghc -fforce-recomp 8103.hs -ddump-cmm | grep D1 D1 = _B2::F64; call AddWraps.foo_info(D2, D1, R1) args: 4, res: 0, upd: 4; AddWraps.foo_entry() // [D2, D1] _B2::F64 = D1; D1 = _cfE::F64; call (P32[(old + 4)])(D1) args: 4, res: 0, upd: 4; D1 = _B2::F64; call AddWraps.foo_info(D2, D1, R1) args: 4, res: 0, upd: 4; ... Truncated for clarity [t-jastol@cam-05-unx : ~/tests/bool-primops/T8103] ./8103 Segmentation fault (core dumped) }}} I'm doing a fresh build at the moment - if this changes anything I'll report back. Perhaps an important detail here is that this is not a true 32bit machine, but a 32-bit sandbox. I don't know if this is relevant in any way. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8103#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler