shm_open error with USB Driver (on Linux)

[Nathan]

Hi,

I have an annoying problem. Occasionally when I run AESCDriver, Paylink or the firmware updater it comes up with the error:

[USBDriver] ERROR: Creating shared memory segment (shm_open)

I can work around this by rebooting the system, but obviously this is not ideal. Can you explain what causes this (and how to fix it!)

[davebush]

Hi,

This is triggered by accidentally running part of the Paylink system as a normal user (as the first Paylink executable to be run)

This creates a shared memory file owned by yourself, which can then not be opened by the Paylink system running as root.

Shared memory segments are actually visible in /dev/shm so all you need to do is to delete /dev/shm/AES