Created attachment 294817 attachment-13720-0.html After some more digging around, I see the following in `journalctl -b-1` :
Jan 23 14:48:41 quasar-nixos-tr kernel: xhci_hcd 0000:09:00.3: Mismatch between completed Set TR Deq Ptr command & xHCI internal state. Jan 23 14:48:41 quasar-nixos-tr kernel: xhci_hcd 0000:09:00.3: ep deq seg = 00000000734e9686, deq ptr = 00000000f203822a and indeed, the "crashes" I experience also seem to be accompanied by all my USB devices (mouse, keyboard) losing power. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1690085 Title: Ryzen 1800X freeze - rcu_sched detected stalls on CPUs/tasks To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1690085/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs