Provided by: systemtap-doc_4.2-3ubuntu0.1_all 

NAME
probe::signal.systkill.return - Sending kill signal to a thread completed
SYNOPSIS
signal.systkill.return
VALUES
retstr
The return value to either __group_send_sig_info,
name
Name of the probe point
SEE ALSO
tapset::signal(3stap)
SystemTap Tapset Reference November 2019 PROBE::SIGNAL.SYST(3stap)