FWIW, I'm running stumpwm on Debian Buster (compiled from source) and it doesn't have this issue.
Does running sbcl also exhibit this behavior? I presume you have tried without any startup customizations. Cheers, -ram On Sat, May 23, 2020, 14:22 Dimitri Minaev <min...@gmail.com> wrote: > Hi. > > Having recently upgraded Debian to 'Bullseye' (testing), I noticed that > StumpWM uses 100% of one of the CPU threads. I'm not sure if this was not > the case before the upgrade, though. I have recompiled StumpWM from > scratch, but the issue persists. How can I identify the root cause? Slime > is working, but I don't know what to search for. > > Thanks. > > -- > With best regards, > Dimitri Minaev >