Error connection on jtop

[simue]

When executing jtop after a couple of seconds it stops with the only output being Error connection

Steps to reproduce the behavior:

1. Connect to Jetson via ssh
2. Run jtop
3. Wait for error message

simue@ubuntu:~$ jtop
Error connection
simue@ubuntu:~$

jetson_stats service logs

simue@ubuntu:~$ sudo journalctl -u jetson_stats
[sudo] password for simue:
-- Logs begin at Tue 2021-11-30 01:58:15 CST, end at Tue 2021-11-30 02:16:51 CST. --
Nov 30 01:58:15 ubuntu systemd[1]: Started jetson_stats service.
Nov 30 01:58:16 ubuntu jtop[4905]: [INFO] jtop.core.common - fan loaded on /sys/devices/pwm-fan
Nov 30 01:58:16 ubuntu jtop[4905]: [INFO] jtop.core.common - jetson_clocks loaded on /usr/bin/jetson_clocks
Nov 30 01:58:17 ubuntu jtop[4905]: [INFO] jtop.core.common - tegrastats loaded on /usr/bin/tegrastats
Nov 30 01:58:17 ubuntu jtop[4905]: [INFO] jtop.__main__ - jetson_stats server loaded
Nov 30 01:58:18 ubuntu jtop[4905]: [INFO] jtop.core.fan - Mode set default status=False
Nov 30 01:58:48 ubuntu jtop[4905]: [INFO] jtop.service - tegrastats started 500ms
Nov 30 01:58:51 ubuntu jtop[4905]: [INFO] jtop.service - tegrastats close
Nov 30 01:58:51 ubuntu jtop[4905]: [INFO] jtop.service - jetson_clocks show closed
Nov 30 02:08:38 ubuntu jtop[4905]: [INFO] jtop.service - tegrastats started 500ms
Nov 30 02:08:41 ubuntu jtop[4905]: [INFO] jtop.service - tegrastats close
Nov 30 02:08:41 ubuntu jtop[4905]: [INFO] jtop.service - jetson_clocks show closed
Nov 30 02:09:04 ubuntu jtop[4905]: [INFO] jtop.service - tegrastats started 500ms
Nov 30 02:09:07 ubuntu jtop[4905]: [INFO] jtop.service - tegrastats close
Nov 30 02:09:07 ubuntu jtop[4905]: [INFO] jtop.service - jetson_clocks show closed
Nov 30 02:09:09 ubuntu jtop[4905]: [INFO] jtop.service - tegrastats started 500ms
Nov 30 02:09:12 ubuntu jtop[4905]: [INFO] jtop.service - tegrastats close
Nov 30 02:09:12 ubuntu jtop[4905]: [INFO] jtop.service - jetson_clocks show closed

Expected behavior jtop gui showing or at least a more concise error message on what has gone wrong

Additional context I used jetson_config's health scripts to check the jetson_stats installation and it appears to be ok. I did reinstall jetson_stats multiple times, with corresponding restarts. The jetson_stats service appears to be running.

- NVIDIA Jetson AGX Xavier [16GB]
   * Jetpack 4.6 [L4T 32.6.1]
   * NV Power Mode: MODE_30W_4CORE - Type: 5
   * jetson_stats.service: active
 - Board info:
   * Type: AGX Xavier [16GB]
   * SOC Family: tegra194 - ID:25
   * Module: P2888-0001 - Board: P2822-0000
   * Code Name: galen
   * CUDA GPU architecture (ARCH_BIN): 7.2
   * Serial Number: 1425020081660
 - Libraries:
   * CUDA: NOT_INSTALLED
   * cuDNN: NOT_INSTALLED
   * TensorRT: NOT_INSTALLED
   * Visionworks: NOT_INSTALLED
   * OpenCV: NOT_INSTALLED compiled CUDA: NO
   * VPI: NOT_INSTALLED
   * Vulkan: 1.2.70
 - jetson-stats:
   * Version 3.1.1
   * Works on Python 3.6.9

Jetson-Stats

• Version: 3.1.1

[simue]

Hi @rbonghi, do you have any hint on what this behaviour could be caused by? I realized that this is only the case when another app I am using is accessing the tegra+nvidia devices. It is running in a docker container, so maybe that's the issue?

[lurenlym]

Same Error.

- NVIDIA Jetson Xavier NX (Developer Kit Version)
   * Jetpack UNKNOWN [L4T 34.1.1]
   * jetson_stats.service: active
 - Board info:
   * Type: Xavier NX (Developer Kit Version)
   * SOC Family: tegra194 - ID:25
   * Module: P3668 - Board: P3509-000
   * Code Name: jakku
   * CUDA GPU architecture (ARCH_BIN): 7.2
   * Serial Number: 1425021054005
 - Libraries:
   * CUDA: NOT_INSTALLED
   * cuDNN: 8.3.2.49
   * TensorRT: 8.4.0.11
   * Visionworks: 1.6.0.501
   * OpenCV: 4.1.1 compiled CUDA: NO
   * VPI: 0.3.7
   * Vulkan: 1.1.70
 - jetson-stats:
   * Version 3.1.4
   * Works on Python 3.6.9

And

8月 11 09:08:51 sutpc systemd[1]: Started jetson_stats service.
8月 11 09:08:52 sutpc jtop[5210]: [INFO] jtop.core.config - Load config from /usr/local/jetson_stats/config.json
8月 11 09:08:52 sutpc jtop[5210]: [INFO] jtop.core.common - fan loaded on /sys/devices/pwm-fan
8月 11 09:08:52 sutpc jtop[5210]: [INFO] jtop.core.common - jetson_clocks loaded on /usr/bin/jetson_clocks
8月 11 09:08:52 sutpc jtop[5210]: [WARNING] jtop.core.nvpmodel - This board does not have NVP Model
8月 11 09:08:52 sutpc jtop[5210]: [WARNING] jtop.service - NVPmodel does not exist for this board in paths ['nvpmodel']
8月 11 09:08:52 sutpc jtop[5210]: [INFO] jtop.core.common - tegrastats loaded on /usr/bin/tegrastats
8月 11 09:08:52 sutpc jtop[5210]: [INFO] jtop.__main__ - jetson_stats server loaded
8月 11 09:08:54 sutpc jtop[5210]: [INFO] jtop.core.fan - Mode set default status=False
8月 11 09:16:11 sutpc jtop[5210]: [INFO] jtop.service - tegrastats started 500ms
8月 11 09:16:11 sutpc jtop[5210]: /usr/bin/tegrastats: /lib/aarch64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found (required by /usr/bin/tegrastats)
8月 11 09:16:14 sutpc jtop[5210]: [INFO] jtop.service - tegrastats close
8月 11 09:16:14 sutpc jtop[5210]: [INFO] jtop.service - jetson_clocks show closed

[rbonghi]

I think this issue is fixed now, if you want to try in preview:

sudo -H pip3 install jetson-stats==4.0.0rc3

[rbonghi]

This error should now be fixed with the latest release 4.0 try to install and check again

sudo -H pip install -U jetson-stats