#11522: maxStkSize can overflow -------------------------------------+------------------------------------- Reporter: rwbarton | Owner: MarcelineVQ Type: bug | Status: new Priority: normal | Milestone: Component: Runtime System | Version: 7.8.4 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D1895 Wiki Page: | -------------------------------------+------------------------------------- Changes (by MarcelineVQ): * owner: => MarcelineVQ * differential: => Phab:D1895 Comment: The suggested overflow test of -K32.0001G can overflow enough to be above the minimally required stack size to run a small program. Decided to use -K4294967297W to overflow it to exactly 1 for testing. According to the invariants in TSO.h:[[BR]] tso->stack_size <= tso->max_stack_size[[BR]] Which means I'll need to change StgStack.stack_size too but its implications reach farther than the other two, offsets and such, so please double-check if that's a good idea. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11522#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler