ERROR::INODE-UPROBES(7stap)                        ERROR::INODE-UPROBES(7stap)

NAME
       error::inode-uprobes - limitations of inode-uprobes


DESCRIPTION
       The uprobes kernel facility introduced in Linux 3.5 aims to supplant
       the earlier out-of-tree utrace patch to enable user-space probing.
       There have been some functional limitations in inode-uprobes that
       preclude some systemtap constructs.  Over time, we hope these
       regressions will be corrected.


       function.return probes
              process.function().return probes require "return-probes" or
              "uretprobes" functionality, which was not implemented in the
              builtin inode-uprobes until kernel 3.10.  If you cannot upgrade
              your kernel, consider using process.statement() probes placed on
              source line numbers at the function's return statements.


       function.statement.absolute probes
              In utrace-equipped kernels, systemtap made it possible to
              address probes by literal addresses in the process virtual
              memory address space.  The new inode-uprobes does not have this
              capability.



SEE ALSO
       stap(1),
       http://kernelnewbies.org/Linux_3.5,
       http://sourceware.org/systemtap/wiki/utrace,
       error::reporting(7stap)

                                                   ERROR::INODE-UPROBES(7stap)