My Piaware stopped working after 2 weeks

[nospamprl]

I’ve been running a Pi Zero W with Piaware and a Prostick plus (blue) dongle for 2 weeks now.

This morning I found it was not working, I can’t even ssh into it nor ping the Pi.

I reimaged my card with a backup from last week which worked since last week, but it didn’t solved the problem.

I finally isolated the problem to the dongle: If it’s connected wifi doesn’t work thus it’s not accesible and it is not reporting either to FA, when I unplug the dongle, wifi is back again (without needing to reboot), when I plug it again wifi goes off.

Here is a log showing when I plugged (08:57:40) and unplugged it (09:00:59):

pi@piaware:~ $ sudo journalctl -u dump1090-fa -n50 --no-pager
– Logs begin at Sat 2020-09-05 11:58:14 CDT, end at Fri 2020-09-11 09:01:41 CDT. –
Sep 11 08:55:35 piaware systemd[1]: dump1090-fa.service: Failed with result ‘exit-code’.
Sep 11 08:56:05 piaware systemd[1]: dump1090-fa.service: Service RestartSec=30s expired, scheduling restart.
Sep 11 08:56:05 piaware systemd[1]: dump1090-fa.service: Scheduled restart job, restart counter is at 18.
Sep 11 08:56:05 piaware systemd[1]: Stopped dump1090 ADS-B receiver (FlightAware customization).
Sep 11 08:56:06 piaware systemd[1]: Started dump1090 ADS-B receiver (FlightAware customization).
Sep 11 08:56:06 piaware dump1090-fa[2172]: Fri Sep 11 08:56:06 2020 CDT dump1090-fa 3.8.1 starting up.
Sep 11 08:56:06 piaware dump1090-fa[2172]: rtlsdr: no supported devices found.
Sep 11 08:56:06 piaware systemd[1]: dump1090-fa.service: Main process exited, code=exited, status=1/FAILURE
Sep 11 08:56:06 piaware systemd[1]: dump1090-fa.service: Failed with result ‘exit-code’.
Sep 11 08:56:37 piaware systemd[1]: dump1090-fa.service: Service RestartSec=30s expired, scheduling restart.
Sep 11 08:56:37 piaware systemd[1]: dump1090-fa.service: Scheduled restart job, restart counter is at 19.
Sep 11 08:56:37 piaware systemd[1]: Stopped dump1090 ADS-B receiver (FlightAware customization).
Sep 11 08:56:38 piaware systemd[1]: Started dump1090 ADS-B receiver (FlightAware customization).
Sep 11 08:56:38 piaware dump1090-fa[2206]: Fri Sep 11 08:56:38 2020 CDT dump1090-fa 3.8.1 starting up.
Sep 11 08:56:38 piaware dump1090-fa[2206]: rtlsdr: no supported devices found.
Sep 11 08:56:38 piaware systemd[1]: dump1090-fa.service: Main process exited, code=exited, status=1/FAILURE
Sep 11 08:56:38 piaware systemd[1]: dump1090-fa.service: Failed with result ‘exit-code’.
Sep 11 08:57:08 piaware systemd[1]: dump1090-fa.service: Service RestartSec=30s expired, scheduling restart.
Sep 11 08:57:08 piaware systemd[1]: dump1090-fa.service: Scheduled restart job, restart counter is at 20.
Sep 11 08:57:08 piaware systemd[1]: Stopped dump1090 ADS-B receiver (FlightAware customization).
Sep 11 08:57:10 piaware systemd[1]: Started dump1090 ADS-B receiver (FlightAware customization).
Sep 11 08:57:10 piaware dump1090-fa[2215]: Fri Sep 11 08:57:10 2020 CDT dump1090-fa 3.8.1 starting up.
Sep 11 08:57:10 piaware dump1090-fa[2215]: rtlsdr: no supported devices found.
Sep 11 08:57:10 piaware systemd[1]: dump1090-fa.service: Main process exited, code=exited, status=1/FAILURE
Sep 11 08:57:10 piaware systemd[1]: dump1090-fa.service: Failed with result ‘exit-code’.
Sep 11 08:57:40 piaware systemd[1]: dump1090-fa.service: Service RestartSec=30s expired, scheduling restart.
Sep 11 08:57:40 piaware systemd[1]: dump1090-fa.service: Scheduled restart job, restart counter is at 21.
Sep 11 08:57:40 piaware systemd[1]: Stopped dump1090 ADS-B receiver (FlightAware customization).
Sep 11 08:57:42 piaware systemd[1]: Started dump1090 ADS-B receiver (FlightAware customization).
Sep 11 08:57:42 piaware dump1090-fa[2317]: Fri Sep 11 08:57:42 2020 CDT dump1090-fa 3.8.1 starting up.
Sep 11 08:57:42 piaware dump1090-fa[2317]: rtlsdr: using device #0: Generic RTL2832U (Realtek, RTL2832U, SN 00001000)
Sep 11 08:57:42 piaware dump1090-fa[2317]: Detached kernel driver
Sep 11 08:57:42 piaware dump1090-fa[2317]: Found Rafael Micro R820T tuner
Sep 11 08:57:42 piaware dump1090-fa[2317]: rtlsdr: enabling tuner AGC
Sep 11 09:00:59 piaware dump1090-fa[2317]: cb transfer status: 5, canceling…
Sep 11 09:00:59 piaware dump1090-fa[2317]: cb transfer status: 5, canceling…
Sep 11 09:00:59 piaware dump1090-fa[2317]: rtlsdr: rtlsdr_read_async returned unexpectedly, probably lost the USB device, bailing out
Sep 11 09:00:59 piaware dump1090-fa[2317]: Fri Sep 11 09:00:59 2020 CDT Waiting for receive thread termination
Sep 11 09:00:59 piaware dump1090-fa[2317]: Reattaching kernel driver failed!
Sep 11 09:00:59 piaware dump1090-fa[2317]: Fri Sep 11 09:00:59 2020 CDT Abnormal exit.
Sep 11 09:00:59 piaware systemd[1]: dump1090-fa.service: Main process exited, code=exited, status=1/FAILURE
Sep 11 09:00:59 piaware systemd[1]: dump1090-fa.service: Failed with result ‘exit-code’.
Sep 11 09:01:29 piaware systemd[1]: dump1090-fa.service: Service RestartSec=30s expired, scheduling restart.
Sep 11 09:01:29 piaware systemd[1]: dump1090-fa.service: Scheduled restart job, restart counter is at 22.
Sep 11 09:01:30 piaware systemd[1]: Stopped dump1090 ADS-B receiver (FlightAware customization).
Sep 11 09:01:31 piaware systemd[1]: Started dump1090 ADS-B receiver (FlightAware customization).
Sep 11 09:01:31 piaware dump1090-fa[2799]: Fri Sep 11 09:01:31 2020 CDT dump1090-fa 3.8.1 starting up.
Sep 11 09:01:31 piaware dump1090-fa[2799]: rtlsdr: no supported devices found.
Sep 11 09:01:31 piaware systemd[1]: dump1090-fa.service: Main process exited, code=exited, status=1/FAILURE
Sep 11 09:01:31 piaware systemd[1]: dump1090-fa.service: Failed with result ‘exit-code’.

Thanks for your help.

[wiedehopf]

@nospamprl

I finally isolated the problem to the dongle: If it’s connected wifi doesn’t work thus it’s not accesible and it is not reporting either to FA, when I unplug the dongle, wifi is back again (without needing to reboot), when I plug it again wifi goes off.

Sounds like power issues.

Confirm with this command:

sudo dmesg --ctime | grep voltage

No output means probably no power issues, but i bet you’ll have plenty of messages.

[nospamprl]

Thanks fir your help, but you lost the bet

There are no voltage related messages.

This is the dmesg report after:

1. I rebooted without the dongle
2. Connected the dongle (Got disconnected from wifi) 10:23:34
3. Pi disconnected dongle 5 seconds later 10:23:39
4. Physically disconnected the dongle (connected to wifi again) (10:29:41)
5. Physically reconnected the dongle 10:32:54
6. Pi disconnected dongle again 10:33:21
7. Physically reconnected the dongle 10:34:17

[Fri Sep 11 10:21:53 2020] 8021q: 802.1Q VLAN Support v1.8
[Fri Sep 11 10:21:54 2020] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled
[Fri Sep 11 10:21:56 2020] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[Fri Sep 11 10:21:56 2020] warning: process `colord-sane’ used the deprecated sysctl system call with 8.1.2.
[Fri Sep 11 10:23:34 2020] Indeed it is in host mode hprt0 = 00021501
[Fri Sep 11 10:23:34 2020] usb 1-1: new high-speed USB device number 2 using dwc_otg
[Fri Sep 11 10:23:34 2020] Indeed it is in host mode hprt0 = 00001101
[Fri Sep 11 10:23:35 2020] usb 1-1: New USB device found, idVendor=0bda, idProduct=2832, bcdDevice= 1.00
[Fri Sep 11 10:23:35 2020] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[Fri Sep 11 10:23:35 2020] usb 1-1: Product: RTL2832U
[Fri Sep 11 10:23:35 2020] usb 1-1: Manufacturer: Realtek
[Fri Sep 11 10:23:35 2020] usb 1-1: SerialNumber: 00001000
[Fri Sep 11 10:23:35 2020] usb 1-1: dvb_usb_v2: found a ‘Realtek RTL2832U reference design’ in warm state
[Fri Sep 11 10:23:35 2020] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[Fri Sep 11 10:23:35 2020] dvbdev: DVB: registering new adapter (Realtek RTL2832U reference design)
[Fri Sep 11 10:23:35 2020] usb 1-1: media controller created
[Fri Sep 11 10:23:35 2020] dvbdev: dvb_create_media_entity: media entity ‘dvb-demux’ registered.
[Fri Sep 11 10:23:35 2020] i2c i2c-11: Added multiplexed i2c bus 12
[Fri Sep 11 10:23:35 2020] rtl2832 11-0010: Realtek RTL2832 successfully attached
[Fri Sep 11 10:23:35 2020] usb 1-1: DVB: registering adapter 0 frontend 0 (Realtek RTL2832 (DVB-T))…
[Fri Sep 11 10:23:35 2020] dvbdev: dvb_create_media_entity: media entity ‘Realtek RTL2832 (DVB-T)’ registered.
[Fri Sep 11 10:23:35 2020] r820t 12-001a: creating new instance
[Fri Sep 11 10:23:35 2020] r820t 12-001a: Rafael Micro r820t successfully identified
[Fri Sep 11 10:23:35 2020] Registered IR keymap rc-empty
[Fri Sep 11 10:23:35 2020] rc rc0: Realtek RTL2832U reference design as /devices/platform/soc/20980000.usb/usb1/1-1/rc/rc0
[Fri Sep 11 10:23:35 2020] rc rc0: lirc_dev: driver dvb_usb_rtl28xxu registered at minor = 0, raw IR receiver, no transmitter
[Fri Sep 11 10:23:35 2020] input: Realtek RTL2832U reference design as /devices/platform/soc/20980000.usb/usb1/1-1/rc/rc0/input0
[Fri Sep 11 10:23:35 2020] usb 1-1: dvb_usb_v2: schedule remote query interval to 200 msecs
[Fri Sep 11 10:23:35 2020] usb 1-1: dvb_usb_v2: ‘Realtek RTL2832U reference design’ successfully initialized and connected
[Fri Sep 11 10:23:35 2020] usbcore: registered new interface driver dvb_usb_rtl28xxu
[Fri Sep 11 10:23:40 2020] r820t 12-001a: destroying instance
[Fri Sep 11 10:23:40 2020] dvb_usb_v2: ‘Realtek RTL2832U reference design:1-1’ successfully deinitialized and disconnected
[Fri Sep 11 10:29:41 2020] ERROR::dwc_otg_hcd_urb_enqueue:501: Not connected

[Fri Sep 11 10:29:41 2020] usb 1-1: usbfs: usb_submit_urb returned -19
[Fri Sep 11 10:29:41 2020] usb 1-1: USB disconnect, device number 2
[Fri Sep 11 10:32:54 2020] Indeed it is in host mode hprt0 = 00021501
[Fri Sep 11 10:32:55 2020] usb 1-1: new high-speed USB device number 3 using dwc_otg
[Fri Sep 11 10:32:55 2020] Indeed it is in host mode hprt0 = 00001101
[Fri Sep 11 10:32:55 2020] usb 1-1: New USB device found, idVendor=0bda, idProduct=2832, bcdDevice= 1.00
[Fri Sep 11 10:32:55 2020] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[Fri Sep 11 10:32:55 2020] usb 1-1: Product: RTL2832U
[Fri Sep 11 10:32:55 2020] usb 1-1: Manufacturer: Realtek
[Fri Sep 11 10:32:55 2020] usb 1-1: SerialNumber: 00001000
[Fri Sep 11 10:32:55 2020] usb 1-1: dvb_usb_v2: found a ‘Realtek RTL2832U reference design’ in warm state
[Fri Sep 11 10:32:55 2020] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[Fri Sep 11 10:32:55 2020] dvbdev: DVB: registering new adapter (Realtek RTL2832U reference design)
[Fri Sep 11 10:32:55 2020] usb 1-1: media controller created
[Fri Sep 11 10:32:55 2020] dvbdev: dvb_create_media_entity: media entity ‘dvb-demux’ registered.
[Fri Sep 11 10:32:55 2020] i2c i2c-11: Added multiplexed i2c bus 12
[Fri Sep 11 10:32:55 2020] rtl2832 11-0010: Realtek RTL2832 successfully attached
[Fri Sep 11 10:32:55 2020] usb 1-1: DVB: registering adapter 0 frontend 0 (Realtek RTL2832 (DVB-T))…
[Fri Sep 11 10:32:55 2020] dvbdev: dvb_create_media_entity: media entity ‘Realtek RTL2832 (DVB-T)’ registered.
[Fri Sep 11 10:32:55 2020] r820t 12-001a: creating new instance
[Fri Sep 11 10:32:55 2020] r820t 12-001a: Rafael Micro r820t successfully identified
[Fri Sep 11 10:32:55 2020] Registered IR keymap rc-empty
[Fri Sep 11 10:32:55 2020] rc rc0: Realtek RTL2832U reference design as /devices/platform/soc/20980000.usb/usb1/1-1/rc/rc0
[Fri Sep 11 10:32:55 2020] rc rc0: lirc_dev: driver dvb_usb_rtl28xxu registered at minor = 0, raw IR receiver, no transmitter
[Fri Sep 11 10:32:55 2020] input: Realtek RTL2832U reference design as /devices/platform/soc/20980000.usb/usb1/1-1/rc/rc0/input1
[Fri Sep 11 10:32:55 2020] usb 1-1: dvb_usb_v2: schedule remote query interval to 200 msecs
[Fri Sep 11 10:32:55 2020] usb 1-1: dvb_usb_v2: ‘Realtek RTL2832U reference design’ successfully initialized and connected
[Fri Sep 11 10:33:21 2020] r820t 12-001a: destroying instance
[Fri Sep 11 10:33:21 2020] dvb_usb_v2: ‘Realtek RTL2832U reference design:1-1’ successfully deinitialized and disconnected
[Fri Sep 11 10:34:17 2020] ERROR::dwc_otg_hcd_urb_enqueue:501: Not connected

[Fri Sep 11 10:34:17 2020] usb 1-1: usbfs: usb_submit_urb returned -19
[Fri Sep 11 10:34:17 2020] ERROR::dwc_otg_hcd_urb_enqueue:501: Not connected

[Fri Sep 11 10:34:17 2020] dvb_usb_rtl28xxu 1-1:1.0: chip type detection failed -19
[Fri Sep 11 10:34:17 2020] usb 1-1: USB disconnect, device number 3
pi@piaware:~ $

[nospamprl]

Just to stay on the safe side, I switched to another power supply (official, usually powering a Pi3B 24/7) and the problem is still there.

[tech0]

Turn off power management.

[nospamprl]

How?

BTW, It worked fine for 2 weeks, and I just reimaged the SD with a 1 week old image, so any recent update should be gone.

[tech0]

To check the status - sudo iwconfig wlan0

To turn off power management - sudo iwconfig wlan0 power off

[nospamprl]

Turning off power management improved my connection, now eventually it reconnects wifi even if the dongle is connected, but most of the time wifi is not working.