problem in running scirpt disktop.stp

[ch huang]

# stap disktop.stp -o ~/myfile

WARNING: cannot find module sunrpc debuginfo: No DWARF information found
WARNING: cannot find module sunrpc debuginfo: No DWARF information found
WARNING: cannot find module sunrpc debuginfo: No DWARF information found
WARNING: cannot find module nfs debuginfo: No DWARF information found
WARNING: cannot find module nfs debuginfo: No DWARF information found
ERROR: probe overhead exceeded threshold
WARNING: Number of errors: 1, skipped probes: 0
Warning: /usr/bin/staprun exited with status: 1
Pass 5: run failed.  Try again with another '--vp 00001' option.