#!/bin/bash
# vim: dict+=/usr/share/beakerlib/dictionary.vim cpt=.,w,b,u,t,i,k
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#
#   runtest.sh of /tools/systemtap/Regression/suspicious-RCU-usage
#   Description: suspicious-RCU-usage
#   Author: Martin Cermak <mcermak@redhat.com>
#
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#
#   Copyright (c) 2020 Red Hat, Inc.
#
#   This program is free software: you can redistribute it and/or
#   modify it under the terms of the GNU General Public License as
#   published by the Free Software Foundation, either version 2 of
#   the License, or (at your option) any later version.
#
#   This program is distributed in the hope that it will be
#   useful, but WITHOUT ANY WARRANTY; without even the implied
#   warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
#   PURPOSE.  See the GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program. If not, see http://www.gnu.org/licenses/.
#
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

# Include Beaker environment
. /usr/share/beakerlib/beakerlib.sh || exit 1

PACKAGE="systemtap"

rlJournalStart
    rlPhaseStartTest
        dmesg1=$(mktemp)
        dmesg2=$(mktemp)
        diff=$(mktemp)
        dmesg > $dmesg1
        rlRun "stap -e 'probe kernel.trace(\"*\"){}' -t -u -v -c '/bin/true'"
        sleep 10
        dmesg > $dmesg2
        rlRun "diff $dmesg1 $dmesg2 |& tee $diff"
        # Reproduced on hpe-moonshot-02-c02.hpe1.lab.eng.bos.redhat.com
        # using kernel-4.18.0-167.el8.aarch64+debug and systemtap-4.2-1.el8.aarch64.
        rlRun "grep -F -i rcu $diff" 1
        rm $dmesg{1,2} $diff
    rlPhaseEnd
rlJournalPrintText
rlJournalEnd