#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: | -------------------------------------+------------------------------------- Changes (by simonpj): * cc: simonmar (added) Comment:
It looks like to avoid this we will either need to teach the simplifier not to throw away otherwise dead continuations which contain some "important" primops
Can you give an example to show what it is throwing away, and why that's bad? I don't get it yet. I have even forgotten why `touch#` exists. Copying Simon Marlow. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14346#comment:19 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler