you can try m-x profiler-start and then trigger the hangup and then m-x profiler-report

From the profiler, the highest percentage was clojure-match-next-def which uses imenu to index the file. Which sounds like something that could cause a buffer to hang. that is, if I’m reading the profiler output correctly

How old is your clojure mode. Maybe update that

it’s from march 🤷 but I will try

I have a config that doesn’t have the issue, so I am going to use that for now and make an issue for it. This was happening also months and months ago, on my other computer, but it’s cropped up again

@bozhidar https://clojurians.slack.com/archives/C099W16KZ/p1621122712235800 Have you encountered this issue at all? I’m essentially using Prelude off the shelf for my Clojure setup

@bozhidar I haven't seen the issue myself, but it seems likely that's a bug in clojure-mode's code.

I think it'd be best to report the issue there, together with whatever data you've obtained from the profiler.

I will do that