Provided by: systemtap-doc_2.9-2ubuntu2_all 

NAME
function::print_backtrace - Print kernel stack back trace
SYNOPSIS
print_backtrace()
ARGUMENTS
None
DESCRIPTION
This function is equivalent to print_stack(backtrace), except that deeper stack nesting may be supported.
See print_ubacktrace for user-space backtrace. The function does not return a value.
SEE ALSO
tapset::context-unwind(3stap)
SystemTap Tapset Reference April 2016 FUNCTION::PRINT_BACK(3stap)