#16065: Stack squeezing during context switches makes for non-determinism in allocations -------------------------------------+------------------------------------- Reporter: sgraf | Owner: (none) Type: task | Status: new Priority: normal | Milestone: ⊥ Component: Runtime System | Version: 8.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #4450, #8861 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonmar): Ah, I just realised what causes the allocation: if we *don't* do stack squeezing, then the larger stack size means that we might overflow the stack in the future, which will entail allocating for the new stack chunk. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/16065#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler