LTTng » LTTng-tools

The save command does not consider the LTTNG_HOME environment variable (nor HOME) because it uses utils_get_user_home_dir(), whereas the load command uses utils_get_home_dir().

Therefore if LTTNG_HOME is set (or if $HOME has a different value than the entry in /etc/passwd), a save and load sequence does not find the session configuration file.

To remain consistent, I think the value of utils_get_home_dir() should be sent from the client to the session daemon at save time, so that, from the user's perspective, both commands are synchronized on the same environment variables.

Use case: this bug makes the save/load operations impossible to do in a virtual environment.