Jetson Xavier NX suffers from sudden network disconnects

Robotics & Edge Computing Jetson & Embedded Systems Jetson Xavier NX
1

When we use NX, there will be occasional eqos problems that cause the network card to stop working suddenly, the log looks like this:

Apr 15 10:39:52 ubuntu systemd[1]: Starting Daily apt download activities…
Apr 15 10:39:53 ubuntu systemd[1]: Started Daily apt download activities.
Apr 15 10:44:02 ubuntu systemd[1]: Starting Daily apt upgrade and clean activities…
Apr 15 10:44:03 ubuntu systemd[1]: Started Daily apt upgrade and clean activities.
Apr 15 11:05:03 ubuntu systemd[1]: Started Run anacron jobs.
Apr 15 11:05:03 ubuntu anacron[8288]: Anacron 2.3 started on 2023-04-15
Apr 15 11:05:03 ubuntu anacron[8288]: Normal exit (0 jobs run)
Apr 15 11:17:01 ubuntu CRON[8348]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
Apr 15 11:34:47 ubuntu kernel: [ 4560.647534] eqos 2490000.ether_qos eth0: Link is Down
Apr 15 11:34:48 ubuntu ProtectCapture[4937]: [2023-04-15 11:34:48.156] [warning] [ServerDll.cpp:168] eth0 is not running.
Apr 15 11:34:48 ubuntu ProtectCapture[4937]: [2023-04-15 11:34:48.157] [info] [main.cpp:480] ###### Start Invoke InitServer ######
Apr 15 11:34:48 ubuntu ProtectCapture[4937]: start SetYellowLed!, EnumPdtStatus:4
Apr 15 11:34:48 ubuntu ProtectCapture[4937]: [2023-04-15 11:34:48.158] [info] [ServerDll.cpp:284] TCP bind
Apr 15 11:34:48 ubuntu ProtectCapture[4937]: errcode:6003, line:151
Apr 15 11:34:48 ubuntu ProtectCapture[4937]: start SetRedLed!, EnumPdtStatus:0
Apr 15 11:34:48 ubuntu ProtectCapture[4937]: RedLedFunc wait end!
Apr 15 11:34:50 ubuntu ProtectCapture[4937]: errcode:6003, line:151
Apr 15 11:34:52 ubuntu ProtectCapture[4937]: …errcode:6003, line:151
Apr 15 11:34:54 ubuntu ProtectCapture[4937]: .errcode:6003, line:151
Apr 15 11:34:56 ubuntu ProtectCapture[4937]: errcode:6003, line:151
Apr 15 11:34:58 ubuntu ProtectCapture[4937]: …errcode:6003, line:151
Apr 15 11:35:00 ubuntu ProtectCapture[4937]: .errcode:6003, line:151
Apr 15 11:35:02 ubuntu ProtectCapture[4937]: errcode:6003, line:151
Apr 15 11:35:04 ubuntu ProtectCapture[4937]: …errcode:6003, line:151
Apr 15 11:35:06 ubuntu ProtectCapture[4937]: .errcode:6003, line:151
Apr 15 11:35:08 ubuntu ProtectCapture[4937]: errcode:6003, line:151
Apr 15 11:35:10 ubuntu ProtectCapture[4937]: …errcode:6003, line:151
Apr 15 11:35:12 ubuntu ProtectCapture[4937]: .errcode:6003, line:151
Apr 15 11:35:14 ubuntu ProtectCapture[4937]: errcode:6003, line:151
Apr 15 11:35:16 ubuntu ProtectCapture[4937]: …errcode:6003, line:151
Apr 15 11:35:18 ubuntu ProtectCapture[4937]: .errcode:6003, line:151
Apr 15 11:35:20 ubuntu ProtectCapture[4937]: errcode:6003, line:151
Apr 15 11:35:22 ubuntu ProtectCapture[4937]: …errcode:6003, line:151
Apr 15 11:35:24 ubuntu ProtectCapture[4937]: .errcode:6003, line:151
Apr 15 11:35:25 ubuntu kernel: [ 4598.554984] eqos 2490000.ether_qos eth0: Link is Up - 10Mbps/Full - flow control rx/tx
Apr 15 11:35:25 ubuntu NetworkManager[5284]: [1681529725.1877] device (eth0): carrier: link connected
Apr 15 11:35:26 ubuntu ProtectCapture[4937]: Cannot get wake-on-lan settings: Operation not permitted
Apr 15 11:35:27 ubuntu kernel: [ 4600.413468] eqos 2490000.ether_qos eth0: Link is Down
Apr 15 11:35:27 ubuntu ProtectCapture[4937]: [sudo] password for ainstec: Cannot get wake-on-lan settings: Operation not permitted
Apr 15 11:35:27 ubuntu ProtectCapture[4937]: .Notice: can’t find target str:Speed: 1000Mb/s, buf:#011Speed: 10Mb/sstart SetRedLed!, EnumPdtStatus:1
Apr 15 11:35:52 ubuntu systemd-resolved[3322]: Using degraded feature set (UDP) for DNS server 8.8.8.8.
Apr 15 11:36:01 ubuntu systemd-resolved[3322]: Using degraded feature set (TCP) for DNS server 8.8.8.8.

2

From the logs, it seems that the main problem is: eqos 2490000.ether_qos eth0: Link is Down
How could we fix this problem?
We’ve had this problem with jetpack version 4.6.1 as well as version 4.4, and the carrier board is Leetop A206 or offical develop kit.

3

I also want to know how to perform Ethernet loopback test on the official development kit, such as MAC loopback or PHY loopback, thank you!

5

How do you reproduce this issue on devkit?

From the logs, it seems that the main problem is: eqos 2490000.ether_qos eth0: Link is Down

This message does not help.
If you remove the ethernet cable, it will give same log to you as well. This log happens everyday to everyone.

6

Thank you for your reply. This issue is indeed very difficult to reproduce. We try to restart the system repeatedly. After restarting several times, the following errors may occasionally occur and cause the network to fail, but the phenomenon before is inconsistent.
Because the picture cannot be uploaded, I will only post the key log.

Run ifconfig command can get: device interrupt 37 error
Run ethtool eth0 can get: both Speed and Duplex are Unknown!
The jetpack version is 4.4

7

  1. Please try to reproduce issue on devkit.

  2. We don’t debug in old release. Please use jp4.6.3 to reproduce.

9

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