function::print_stack.3stap man page
function::print_stack — Print out kernel stack from string
String with list of hexadecimal addresses
This function performs a symbolic lookup of the addresses in the given string, which is assumed to be the result of a prior call to backtrace.
Print one line per address, including the address, the name of the function containing the address, and an estimate of its position within that function. Return nothing.
it is recommended to use print_syms instead of this function.