Provided by: systemtap-doc_2.3-1ubuntu1.4_all 

NAME
probe::vm.kmalloc_node - Fires when kmalloc_node is requested
SYNOPSIS
vm.kmalloc_node
VALUES
caller_function
name of the caller function
bytes_alloc
allocated Bytes
ptr
pointer to the kmemory allocated
call_site
address of the function caling this kmemory function
gfp_flags
type of kmemory to allocate
bytes_req
requested Bytes
name
name of the probe point
gfp_flag_name
type of kmemory to allocate(in string format)
SystemTap Tapset Reference March 2016 PROBE::VM.KMALLOC_(3stap)