centos man page for function::backtrace

FUNCTION::BACKTRACE(3stap)					 Context Functions					FUNCTION::BACKTRACE(3stap)

NAME
       function::backtrace - Hex backtrace of current kernel stack

SYNOPSIS
	   backtrace:string()

ARGUMENTS
       None

DESCRIPTION
       This function returns a string of hex addresses that are a backtrace of the kernel stack. Output may be truncated as per maximum string
       length (MAXSTRINGLEN). See ubacktrace for user-space backtrace.

SystemTap Tapset Reference					     June 2014						FUNCTION::BACKTRACE(3stap)