micro-ROS agent stops on logger setup line

• Hardware description: micro-ros node: STM32L4 Discovery kit IoT node (B-L475E-IOT01A2), agent: Raspberry Pi 4 Model B 2GB RAM
• RTOS: Zephyr
• Installation type: micro_ros_setup
• Version or commit hash: humble

Steps to reproduce the issue

1. Configure firmware to use ping-pong demo application and usb-serial transport.
2. Build and flash.
3. Plug microcontroller into Raspberry and run micro-ros agent.

Expected behavior

Micro-ros node starts properly and its topics are visible from Raspberry.

Actual behavior

Micro-ros agent stops on:

[1667242557.691466] info     | TermiosAgentLinux.cpp | init                     | running...             | fd: 3
[1667242557.692280] info     | Root.cpp           | set_verbose_level        | logger setup           | verbose_level: 4

Additional information

I tried to unplug, then plug in the board and resetting it with dedicated pushbutton.
Raspberry runs ROS2 Humble on Ubuntu 22.04 server with kernel:
Linux ubuntu 5.15.39-rt42-raspi #1 SMP PREEMPT_RT Sat Jul 16 08:34:58 UTC 2022 aarch64 aarch64 aarch64 GNU/Linux

Nenhum arquivo-fonte ou teste é indicado. Comece reproduzindo o problema com o STM32L4 Discovery kit, Zephyr, USB-serial transport e o micro-ROS agent no Raspberry Pi e, em seguida, inspecione o caminho de inicialização do agent em torno da saída de configuração do logger relatada. Está concluído quando o agent permanece em execução e os tópicos do node ficam visíveis a partir do Raspberry Pi.