I installed Ubuntu 22.04 on VirtualBox (Ubuntu 24.04 as host if that matters) and I have an ESP32-S3 board connected on USB port. Guest additions installed. Acquiring the device inside the VM it correcly appears as /dev/ttyACM0:
[ 121.563256] usb 1-2: new full-speed USB device number 3 using ohci-pci[ 122.069667] usb 1-2: New USB device found, idVendor=303a, idProduct=1001, bcdDevice= 1.01[ 122.069673] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3[ 122.069676] usb 1-2: Product: USB JTAG/serial debug unit[ 122.069678] usb 1-2: Manufacturer: Espressif[ 122.069679] usb 1-2: SerialNumber: 24:58:7C:F4:95:E4[ 122.086870] cdc_acm 1-2:1.0: ttyACM0: USB ACM device[ 122.086913] usbcore: registered new interface driver cdc_acm[ 122.086915] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adaptersUsing any application, like Cutecom or Visual Studio Code I can successfully open the serial port and exchange data. But when I close it the application hangs, I cannot use it anymore or close it.
Furthermore, the VM machine is still functional but I cannot shutdown. It simply ignores the sudo halt command or even from Gnome. I cannot even turn off the machine from VirtualBox interface, I have to kill the host process.
The only thing I was able to do is inspecting the dmesg after closing the serial port:
[ 266.942786] ohci-pci 0000:00:06.0: frame counter not updating; disabled[ 266.942799] ohci-pci 0000:00:06.0: HC died; cleaning upand from a search on the web it seems related to the USB CDC but I wasn't able to find a solution.