Ben I'm getting a lot of cpe_app(keepAlive#) 3 cpe_app(keepAlive) trace messages from HEAD. Maybe it's a leftover from tracing when you were developing? Remove? Simon -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.haskell.org/pipermail/ghc-devs/attachments/20210215/4f381624/attachment.html>