#15892: Segmentation fault with ByteString and -O --------------------------------------+---------------------------------- Reporter: akio | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.3 Component: Compiler | Version: 8.6.2 Keywords: | Operating System: Linux Architecture: x86_64 (amd64) | Type of failure: Runtime crash Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: --------------------------------------+---------------------------------- The attached program consistently segfaults (within a few seconds) when compiled with ghc-8.6.1 or ghc-8.6.2. It runs forever (as expected) when compiled with ghc-8.4. To reproduce: {{{ ghc segfault.hs }}} then, {{{ ./segfault >/dev/null }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15892 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler