Re: [GHC] #15165: GHC 8.2.2: internal error with +RTS -hb

#15165: GHC 8.2.2: internal error with +RTS -hb -------------------------------------+------------------------------------- Reporter: kfiz | Owner: (none) Type: bug | Status: patch Priority: normal | Milestone: 8.8.1 Component: Profiling | Version: 8.2.2 Resolution: | Keywords: Operating System: MacOS X | Architecture: x86_64 | (amd64) Type of failure: Runtime crash | Test Case: Blocked By: | Blocking: Related Tickets: #15063, #15087, | Differential Rev(s): Phab:D4928 #7836 | Wiki Page: | -------------------------------------+------------------------------------- Comment (by Ömer Sinan Ağacan ): In [changeset:"2625f1310edeff62eb3876cc6efbe105a80fe4ad/ghc" 2625f131/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="2625f1310edeff62eb3876cc6efbe105a80fe4ad" 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. Test Plan: Validates on x86_64. Existing failures on i386. Reviewers: simonmar, bgamari, erikd Reviewed By: simonmar, bgamari Subscribers: rwbarton, thomie, carter GHC Trac Issues: #7836, #15063, #15087, #15165 Differential Revision: https://phabricator.haskell.org/D4928 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15165#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler