hollow birch
Anyone seen this on a BTT CB1? Using an M8P Manta for a Trident, it keeps hard-freezing every once in a while. Moonraker never loads, no SSH communication. Finally caught it via netconsole:
Kernel panic - not syncing: RCU Stall
CPU: 3 PID: 1579 Comm: python
Call trace:
queued_spin_lock_slowpath
futex_wait_setup
futex_wait
do_futex
armbian 6.6.66-vendor-sunxi64, klipper + moonraker. another python pid was state:R on cpu 0 at the same instant.
leading up: loadavg jumps from ~0.3 to 4+ in one tick with 8 runnable procs, 21s later the stall fires. klipper stats clean right up to the panic, no MCU comms issues, no print_stall. Already swapped the SD card chasing what i thought was
a card fault, no help. I tried disabling crowsnest to reduce load, no help
pastel trench