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)