#12899: ghc panics at random places with -jX -------------------------------------+------------------------------------- Reporter: pacak | Owner: Type: bug | Status: closed Priority: normal | Milestone: 8.2.1 Component: Compiler | Version: 8.0.1 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D2844 Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): Here's the commit message I believe: In [changeset:"0d213c18b6962bb65e2b3035a258dd3f5bf454dd/ghc" 0d213c1/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="0d213c18b6962bb65e2b3035a258dd3f5bf454dd" UniqSupply: Use full range of machine word Currently uniques are 32-bits wide. 8 of these bits are for the unique class, leaving only 24 for the unique number itself. This seems dangerously small for a large project. Let's use the full range of the native machine word. We also add (now largely unnecessary) overflow check to ensure that the unique number doesn't overflow. Test Plan: Validate Reviewers: simonmar, austin, niteria Reviewed By: niteria Subscribers: mpickering, thomie Differential Revision: https://phabricator.haskell.org/D2844 GHC Trac Issues: #12944 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12899#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler