I am using JTrace Pro Cortex-M with the reference STM32F407 board on Ubuntu 16.04 LTS and this sample - wiki.segger.com/Use_SystemView_without_RTOS

The issue: when I press 'start recording' button, nothing happens. Not even an error.

I looked at similar threads (bad shared lib links) but none of these match my issue.

I have the following packages installed on Ubuntu 16.04 LTS (should be the latest ones) :

• jlink 6.622
  
• ozone:amd64 3.10.5
  
• systemview 3.10
  
  

Udev rules are installed properly - Ozone and JLinkGDBServer work.

SystemView does find the JLink shared libraries which can be seen from the process map via 'cat /proc/$(pidof SystemView)/maps':


Log in SystemView does not show any error either.

Same setup works on Windows without problems. Any idea what else can be wrong?

I can attach 'strace' and/or 'ltrace' of SystemView execution, but they they are quite long and I don't see any obvious reason for the failure (like EACCES for denied access to device or such).

After additional debugging sessions, even recording via network through ethernet interface does not work. As if the data recording component never runs at all. (connection through network from windows for fine though).

In strace after pushing the "record" button on linux, some process is spawned, it goes over the devices in /sys subtree, finds USB JTrace device file, tries to talk some packets with it and it ends there.

Recording on Windows from network with SystemView sometimes works, but you need to be really lucky (specific set network again even though you've already set them last time, SystemView must be freshly opened, and even then it doesn't always work).