These errors and warnings occur when the kernel systemtap is running
on lacks support for user-space process tracking facilities.
ERROR: user-space process-tracking facilities not available
occurs when the script contains a uprobes probe point that the cur‐
rent kernel does not support.
WARNING: process-tracking facilities are not available in this kernel
and the related message,
WARNING: cannot track target in process '...'
both occur at runtime when running on a kernel (generally an older
version) that has neither utrace functionality nor an acceptable sub‐
The script should still load and run. However, probes that rely on
availability of process-tracking facilities will silently fail to
This page is part of the systemtap (a tracing and live-system
analysis tool) project. Information about the project can be found
at ⟨https://sourceware.org/systemtap/⟩. If you have a bug report for
this manual page, send it to email@example.com. This page was
obtained from the project's upstream Git repository
⟨git://sourceware.org/git/systemtap.git⟩ on 2017-03-13. If you dis‐
cover any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page, or
you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail