#12019: Profiling option -hb is not thread safe -------------------------------------+------------------------------------- Reporter: erikd | Owner: erikd Type: bug | Status: new Priority: normal | Milestone: 8.0.2 Component: Runtime System | Version: 8.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Runtime crash | Test Case: Blocked By: | Blocking: Related Tickets: #11978, #12009 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by erikd): Fixing this is definitely not trivial. I've placed locks around some of the shared mutable data structures, but I still get the same assertion (in function `processHeapClosureForDead`) failing: {{{ ASSERT(((LDVW(c) & LDV_CREATE_MASK) >> LDV_SHIFT) > 0); }}} because the `overwritingClosure` has already been called on it. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12019#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler