network IO issue with Ubuntu 20.04 on RPI4

[R C]

Hello Collin,


well the rpi4 and power supply are new,  but I am wondering if a usb 
device is misbehaving:

(the usb stick barely should use power,  the AD board has it's own 
powersupply,  and the "long range" antenna is  powered by the raspberry 
pi, so it might be that antenna)

I found messages like:

Jul  3 13:33:27 seismo kernel: [ 5996.500947] usb usb2-port1: 
over-current change #15
Jul  3 13:33:27 seismo kernel: [ 5996.716009] usb usb2-port2: 
over-current change #8
Jul  3 13:33:27 seismo kernel: [ 5996.931943] usb usb2-port3: 
over-current change #8
Jul  3 13:33:27 seismo kernel: [ 5997.147928] usb usb2-port4: 
over-current change #8

Ron


On 7/3/21 1:48 PM, Colin Law wrote:
> On Sat, 3 Jul 2021 at 16:30, R C <cjvijf at gmail.com> wrote:
>> /var/log/syslog.1:Jul  2 09:47:50 seismo kernel: [67573.340483] blk_update_request: I/O error, dev sda, sector 60088192 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
> Errors like that almost certainly mean you have a hardware problem.
> If it isn't the card itself  then something on-board, or possibly the
> power supply.
>