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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-or-later
# description: Test wwnr monitor with printk reactor
# requires: available_reactors wwnr:monitor printk:reactor stress-ng:program
load() { # returns true if there was a reaction
local lines_before num
num=$((($(nproc) + 1) / 2))
lines_before=$(dmesg | wc -l)
stress-ng --cpu-sched "$num" --timer "$num" -t 5 -q
dmesg | tail -n $((lines_before + 1)) | grep -q "rv: monitor wwnr does not allow event"
}
echo 1 > monitors/wwnr/enable
echo printk > monitors/wwnr/reactors
load
echo 0 > monitoring_on
! load
echo 1 > monitoring_on
load
echo 0 > reacting_on
! load
echo 1 > reacting_on
echo nop > monitors/wwnr/reactors
echo 0 > monitors/wwnr/enable
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