The view at http://<jenkins_host>/computer/ shows a table with all the configured nodes and one of the coumns shows "Free Disk Space".

On all my linux nodes (configured as "Launch agent via ssh") the figure reported in this column is wrong: it shows the available disk space on the root filesystem instead of the available disk space on the filesystem where the remote root directory or workspace is.

For example, if a node is configured with Remote root directory = /home/jenkins, the "free disk space" that I expect to see is that of either /home/jenkins/workspace or /home/jenkins itself (which may be 2 different filesystems, btw!), almost certainly not interested in the root filesystem.

Might be related to JENKINS-7706