These errors and warnings occur when the kernel systemtap is
running on lacks support for user-space process tracking
ERROR: user-space process-tracking facilities not available
occurs when the script contains a uprobes probe point that the
current 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
The script should still load and run. However, probes that rely
on availability of process-tracking facilities will silently fail
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 firstname.lastname@example.org.
This page was obtained from the project's upstream Git repository
⟨git://sourceware.org/git/systemtap.git⟩ on 2021-08-27. (At that
time, the date of the most recent commit that was found in the
repository was 2021-08-26.) If you discover 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 to