I believe that this is caused specifically by trying to go into suspend using my USB keyboard. It is a three-key chord on QMK sending systemctl suspend in xmonad.
apparently 5.10.78 should have the fix for those problems, but maybe suspend is another problem that hasn’t been fixed. do things also crash with 5.14 or 5.15?
Yeah I guess I’ll switch back to 5.14.14 which has been the best kernel for me so far. I was trying to simplify by using present kernels, but I guess it was the wrong time for me to try that.
Here’s the journalctl from my last boot, which became partially unresponsive after one suspend attempt, and then fully locked up on the second: http://ix.io/3EX7