RPi hardware errors


#1

Hi All,

I’m getting these errors as per kernel.log and curious on what’s causing them and how to stop them.
At times the RTL-SDR v3 will stop responding and not show when running lsusb. The corresponding observation as the time, fails.
As shows, eth0 link goes up and down virtually all the time. The RTL-SDR disconnect/found is not so often, but is troublesome.

RPi v3 is running raspbian stretch with latest updates. This was happening even before updating. I have 3 RPi/SDR systems doing the same thing. Dunno why :frowning: :frowning:
Hence my VHF SatNOGS GS is down at the moment. It’s the most troublesome.

May 27 11:52:10 satnogs-vhf kernel: [234552.853025] smsc95xx 1-1.1:1.0 eth0: link down
May 27 11:52:16 satnogs-vhf kernel: [234559.076979] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
May 27 12:15:12 satnogs-vhf kernel: [235934.878902] smsc95xx 1-1.1:1.0 eth0: hardware isn’t capable of remote wakeup
May 27 12:15:22 satnogs-vhf kernel: [235945.094727] smsc95xx 1-1.1:1.0 eth0: hardware isn’t capable of remote wakeup
May 27 12:15:23 satnogs-vhf kernel: [235946.533167] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
May 27 13:24:35 satnogs-vhf kernel: [240098.271832] usb 1-1.3: USB disconnect, device number 77
May 27 13:24:35 satnogs-vhf kernel: [240098.583515] usb 1-1.3: new high-speed USB device number 78 using dwc_otg
May 27 13:24:35 satnogs-vhf kernel: [240098.725343] usb 1-1.3: New USB device found, idVendor=0bda, idProduct=2838
May 27 13:24:35 satnogs-vhf kernel: [240098.725356] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
May 27 13:24:35 satnogs-vhf kernel: [240098.725365] usb 1-1.3: Product: RTL2838UHIDIR
May 27 13:24:35 satnogs-vhf kernel: [240098.725374] usb 1-1.3: Manufacturer: Realtek
May 27 13:24:35 satnogs-vhf kernel: [240098.725382] usb 1-1.3: SerialNumber: 00000001
May 27 13:36:32 satnogs-vhf kernel: [240815.071847] usb 1-1.3: USB disconnect, device number 78
May 27 13:36:32 satnogs-vhf kernel: [240815.377411] usb 1-1.3: new high-speed USB device number 79 using dwc_otg
May 27 13:36:32 satnogs-vhf kernel: [240815.519233] usb 1-1.3: New USB device found, idVendor=0bda, idProduct=2838
May 27 13:36:32 satnogs-vhf kernel: [240815.519246] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
May 27 13:36:32 satnogs-vhf kernel: [240815.519256] usb 1-1.3: Product: RTL2838UHIDIR
May 27 13:36:32 satnogs-vhf kernel: [240815.519264] usb 1-1.3: Manufacturer: Realtek
May 27 13:36:32 satnogs-vhf kernel: [240815.519272] usb 1-1.3: SerialNumber: 00000001
May 27 13:43:01 satnogs-vhf kernel: [241204.525094] smsc95xx 1-1.1:1.0 eth0: link down
May 27 13:43:03 satnogs-vhf kernel: [241205.996970] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
May 27 13:43:03 satnogs-vhf kernel: [241206.445125] smsc95xx 1-1.1:1.0 eth0: link down
May 27 13:43:05 satnogs-vhf kernel: [241208.101059] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
May 27 13:50:04 satnogs-vhf kernel: [241627.597119] smsc95xx 1-1.1:1.0 eth0: link down
May 27 13:50:06 satnogs-vhf kernel: [241629.101047] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
May 27 13:50:21 satnogs-vhf kernel: [241643.877112] smsc95xx 1-1.1:1.0 eth0: link down
May 27 13:50:22 satnogs-vhf kernel: [241645.365094] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1


#2

I would first start with replacing the network cable and maybe try another switch port or other port on your router and see what that gives


#3

2 different switches and 3 RPi/SDR GS do the same thing, albeit in varying frequency. The VHF GS is the worst regarding SDR USB dropout.
The 3 RPi/SDR GS feed an 8 port POE (12v) switch. This switch then feeds my main 24 port switch. Each RPi has it’s own 5A DC/DC converter for the 5V supply.
I’m baffled :frowning:


#4

Can the POE switch deliver >10W per port and >30W in total?


#5

2 RPI’s are outside so the ethernet cable is around 10-12m in length. The indoor unit has 3m ethernet cable.

It’s actually a POE injector/switch combo. POE volts depends on power supply in use. In this case 12V 12A. Each port is free to draw however much current it needs.
Today I’ve changed the DC-DC converter on 2 (1outside, 1 inside) of the 3 RPi’s to variable units. I’ve set O/P to 5.2V, as I’ve read better RPi PSUs have the slightly high output. Still no difference.