title: Show Which Processes and System Calls Return Errors Most Frequently
name: errno.stp
version: 1.0
author: Dominic Duval
keywords: profiling
subsystem: kernel
status: production
exit: user-controlled
output: sorted-list
scope: system-wide
description: On exit the errno.stp script provides a sorted list showing which combination of PID, system call, and error occur most frequently.
test_check: stap -p4 errno.stp
test_installcheck: stap errno.stp -c "sleep 0.2"