Hey everyone,

I have a problem where a physical hardware device on my worker passed through to an LXC container cannot be read from or written to when I am connected to the LXC in a hacking session via SSH.

I have registered the device in my static_info:

{% set static_info = [ {"board_id": "GO31472"}, ] %}

LAVA starts the LXC and attaches the device to it correctly:

start: 2.2 lxc-add-static (timeout 00:04:50) [remote] Adding /dev/ttyUSB16, /dev/serial/by-id/usb-GFL_M_504_G_GO31472-if00-port0, /dev/bus/usb/004/008, /dev/serial/by-path/pci-0000:00:1d.3-usb-0:1:1.0-port0 nice lxc-device -n lxc-remote-10577 add /dev/ttyUSB16 nice lxc-device -n lxc-remote-10577 add /dev/serial/by-id/usb-GFL_M_504_G_GO31472-if00-port0 nice lxc-device -n lxc-remote-10577 add /dev/bus/usb/004/008 nice lxc-device -n lxc-remote-10577 add /dev/serial/by-path/pci-0000:00:1d.3-usb-0:1:1.0-port0 end: 2.2 lxc-add-static (duration 00:00:00) [remote]

When I connect to the LXC via SSH using a hacking session, the device is there, but I cannot access it:

root@lxc-remote-10577:~# ls -la /dev/ttyUSB16 crw-r--r-- 1 root root 180, 0 Aug 27 11:26 /dev/ttyUSB16 root@lxc-remote-10577:~# cat /dev/ttyUSB16 cat: /dev/ttyUSB16: Operation not permitted

However, when I attach to the LXC directly from the worker using "lxc-attach", I can access it:

root@lxc-remote-10577:~# ls -la /dev/ttyUSB16 crw-r--r-- 1 root root 180, 0 Aug 27 11:26 /dev/ttyUSB16 root@lxc-remote-10577:~# cat /dev/ttyUSB16 ����������^C root@lxc-remote-10577:/#

Did anybody else encounter such a problem before? Any hints on what might be the difference between lxc-attach and the SSH connection?

Mit freundlichen Grüßen / Best regards Tim Jaacks DEVELOPMENT ENGINEER Garz & Fricke GmbH Schlachthofstrasse 20 21079 Hamburg Direct: +49 40 791 899 - 183 Fax: +49 40 791899 - 39 tim.jaacks@garz-fricke.com www.garz-fricke.com WE MAKE IT YOURS!

Sitz der Gesellschaft: D-21079 Hamburg Registergericht: Amtsgericht Hamburg, HRB 60514 Geschäftsführer: Matthias Fricke, Manfred Garz, Marc-Michael Braun