ERROR::PASS5

Section: Misc. Reference Manual Pages (7stap)
Index Return to Main Contents
 

NAME

warning::pass5 - systemtap pass-5 warnings

 

DESCRIPTION

Warnings that occur during pass 5 (execution) can have a variety of causes.

probe insertion errors
With any of the systemtap runtimes, it may be possible that the backends are unable to insert probe points requested by the systemtap script. For example, you may see errors such as 


WARNING: probe [...] registration error (rc -524)

(524 is a kernel error code for ENOTSUPP). These situations are out of systemtap's control, and result in some probes not receiving any hits. This may be caused by temporary resource constraints or permanent problems. One common permanent problem is such a probe point being placed at instructions that the runtime (kernel kprobes, uprobes or dyninst) cannot decode or intercept. A possible workaround is to move the probe points slightly in the script, so as to target a nearby statement, or a caller, or a callee. See also error::dwarf(7stap).

 

GATHERING MORE INFORMATION

Increasing the verbosity of pass-5 with an option such as --vp 00001 can help pinpoint the problem.

 

SEE ALSO

stap(1),
http://sourceware.org/systemtap/wiki/TipExhaustedResourceErrors,
error::pass5(7stap),
error::reporting(7stap)
error::dwarf(7stap)
 

Index

NAME
DESCRIPTION
GATHERING MORE INFORMATION
SEE ALSO
This document was created by man2html, using the manual pages.
Time: 21:32:40 GMT, May 01, 2026