#7836: "Invalid object in processHeapClosureForDead" when profiling with -hb -------------------------------------+------------------------------------- Reporter: hyperthunk | Owner: (none) Type: bug | Status: patch Priority: normal | Milestone: Component: Profiling | Version: 8.5 Resolution: | Keywords: profiling Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Runtime crash | Test Case: Blocked By: | Blocking: Related Tickets: #9640 | Differential Rev(s): Phab:D4567 Wiki Page: | -------------------------------------+------------------------------------- Comment (by Ben Gamari ): In [changeset:"a303584e58b3f4791bc5881cb722e7f498e14554/ghc" a303584e/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="a303584e58b3f4791bc5881cb722e7f498e14554" Fix processHeapClosureForDead CONSTR_NOCAF case: CONSTR_NOCAF was introduced with 55d535da10d as a replacement for CONSTR_STATIC and CONSTR_NOCAF_STATIC, however, as explained in Note [static constructors], we copy CONSTR_NOCAFs (which can also be seen in evacuate) during GC, and they can become dead, like other CONSTR_X_Ys. processHeapClosureForDead is updated to reflect this. Reviewers: bgamari, simonmar, erikd Subscribers: thomie, carter GHC Trac Issues: #7836 Differential Revision: https://phabricator.haskell.org/D4567 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7836#comment:24 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler