Comment 23 for bug 1846016

Created attachment 283657
Relevant dmesg output

Running Ubuntu 18.04 LTS with stock kernel (4.15.0-54-generic). Firmware failure with stock firmware from linux-firmware package (version 29.1044073957.0) and firmware supplied by Emmanuel (29.4009927039.0).

Takes about 1 day of uptime for the first firmware crash. After that, firmware restarts are fairly common (2-3 per day). Throughput drops by 3-4x after first firmware restart and never recovers. No specific repro steps; simply remain connected to a 5GHz WPA2 Personal network with occasional network activity.