#14346: 8.2.1 regression: heap corruption after safe foreign calls -------------------------------------+------------------------------------- Reporter: andrewchen | Owner: (none) Type: bug | Status: infoneeded Priority: highest | Milestone: Component: Runtime System | Version: 8.2.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Runtime crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by rezb1t): I can reproduce this same issue on my machine, I am using: NixOS x86_64 Unstable Branch (as of 10-12) GHC 8.2.1 Binutils 2.28.1 GCC 6.4.0 I noticed the bug does not occur and the program runs infinitely if I simply compile with 'ghc Main.hs test.c -threaded -o Bug', however, if Optimization level 1 or 2 are enabled, the bug happens very quickly after running the binary. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14346#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler