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systemd/test/units/testsuite-36.sh
2020-12-16 18:30:15 +01:00

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#!/usr/bin/env bash
set -ex
set -o pipefail
at_exit() {
if [ $? -ne 0 ]; then
# We're exiting with a non-zero EC, let's dump test artifacts
# for easier debugging
[ -f "$straceLog" ] && cat "$straceLog"
[ -f "$journalLog" ] && cat "$journalLog"
fi
}
trap at_exit EXIT
systemd-analyze log-level debug
systemd-analyze log-target journal
# Log files
straceLog='strace.log'
journalLog='journal.log'
# Systemd config files
testUnit='numa-test.service'
testUnitFile="/run/systemd/system/$testUnit"
testUnitNUMAConf="$testUnitFile.d/numa.conf"
# Sleep constants (we should probably figure out something better but nothing comes to mind)
journalSleep=5
sleepAfterStart=1
# Journal cursor for easier navigation
journalCursorFile="jounalCursorFile"
startStrace() {
coproc strace -qq -p 1 -o $straceLog -e set_mempolicy -s 1024 $1
# Wait for strace to properly "initialize"
sleep $sleepAfterStart
}
stopStrace() {
kill -s TERM $COPROC_PID
# Make sure the strace process is indeed dead
while kill -0 $COPROC_PID 2>/dev/null; do sleep 0.1; done
}
startJournalctl() {
# Save journal's cursor for later navigation
journalctl --no-pager --cursor-file="$journalCursorFile" -n0 -ocat
}
stopJournalctl() {
local unit="${1:-init.scope}"
# Using journalctl --sync should be better than using SIGRTMIN+1, as
# the --sync wait until the synchronization is complete
echo "Force journald to write all queued messages"
journalctl --sync
journalctl -u $unit --cursor-file="$journalCursorFile" > "$journalLog"
}
checkNUMA() {
# NUMA enabled system should have at least NUMA node0
test -e /sys/devices/system/node/node0
}
writePID1NUMAPolicy() {
echo [Manager] > $confDir/numa.conf
echo NUMAPolicy=$1 >> $confDir/numa.conf
echo NUMAMask=$2>> $confDir/numa.conf
}
writeTestUnit() {
mkdir -p $testUnitFile.d/
echo [Service] > $testUnitFile
echo ExecStart=/bin/sleep 3600 >> $testUnitFile
}
writeTestUnitNUMAPolicy() {
echo [Service] > $testUnitNUMAConf
echo NUMAPolicy=$1 >> $testUnitNUMAConf
echo NUMAMask=$2>> $testUnitNUMAConf
systemctl daemon-reload
}
pid1ReloadWithStrace() {
startStrace
systemctl daemon-reload
sleep $sleepAfterStart
stopStrace
}
pid1ReloadWithJournal() {
startJournalctl
systemctl daemon-reload
stopJournalctl
}
pid1StartUnitWithStrace() {
startStrace '-f'
systemctl start $1
sleep $sleepAfterStart
stopStrace
}
pid1StartUnitWithJournal() {
startJournalctl
systemctl start $1
sleep $sleepAfterStart
stopJournalctl
}
pid1StopUnit() {
systemctl stop $1
}
systemctlCheckNUMAProperties() {
local LOGFILE="$(mktemp)"
systemctl show -p NUMAPolicy $1 > "$LOGFILE"
grep "NUMAPolicy=$2" "$LOGFILE"
> "$LOGFILE"
if [ -n "$3" ]; then
systemctl show -p NUMAMask $1 > "$LOGFILE"
grep "NUMAMask=$3" "$LOGFILE"
fi
}
writeTestUnit
# Create systemd config drop-in directory
confDir="/run/systemd/system.conf.d/"
mkdir -p "$confDir"
if ! checkNUMA; then
echo >&2 "NUMA is not supported on this machine, switching to a simple sanity check"
echo "PID1 NUMAPolicy=default && NUMAMask=0 check without NUMA support"
writePID1NUMAPolicy "default" "0"
startJournalctl
systemctl daemon-reload
stopJournalctl
grep "NUMA support not available, ignoring" "$journalLog"
echo "systemd-run NUMAPolicy=default && NUMAMask=0 check without NUMA support"
runUnit='numa-systemd-run-test.service'
startJournalctl
systemd-run -p NUMAPolicy=default -p NUMAMask=0 --unit $runUnit sleep 1000
sleep $sleepAfterStart
pid1StopUnit $runUnit
stopJournalctl $runUnit
grep "NUMA support not available, ignoring" "$journalLog"
else
echo "PID1 NUMAPolicy support - Default policy w/o mask"
writePID1NUMAPolicy "default"
pid1ReloadWithStrace
# Kernel requires that nodemask argument is set to NULL when setting default policy
grep "set_mempolicy(MPOL_DEFAULT, NULL" $straceLog
echo "PID1 NUMAPolicy support - Default policy w/ mask"
writePID1NUMAPolicy "default" "0"
pid1ReloadWithStrace
grep "set_mempolicy(MPOL_DEFAULT, NULL" $straceLog
echo "PID1 NUMAPolicy support - Bind policy w/o mask"
writePID1NUMAPolicy "bind"
pid1ReloadWithJournal
grep "Failed to set NUMA memory policy: Invalid argument" $journalLog
echo "PID1 NUMAPolicy support - Bind policy w/ mask"
writePID1NUMAPolicy "bind" "0"
pid1ReloadWithStrace
grep -P "set_mempolicy\(MPOL_BIND, \[0x0*1\]" $straceLog
echo "PID1 NUMAPolicy support - Interleave policy w/o mask"
writePID1NUMAPolicy "interleave"
pid1ReloadWithJournal
grep "Failed to set NUMA memory policy: Invalid argument" $journalLog
echo "PID1 NUMAPolicy support - Interleave policy w/ mask"
writePID1NUMAPolicy "interleave" "0"
pid1ReloadWithStrace
grep -P "set_mempolicy\(MPOL_INTERLEAVE, \[0x0*1\]" $straceLog
echo "PID1 NUMAPolicy support - Preferred policy w/o mask"
writePID1NUMAPolicy "preferred"
pid1ReloadWithJournal
# Preferred policy with empty node mask is actually allowed and should reset allocation policy to default
! grep "Failed to set NUMA memory policy: Invalid argument" $journalLog
echo "PID1 NUMAPolicy support - Preferred policy w/ mask"
writePID1NUMAPolicy "preferred" "0"
pid1ReloadWithStrace
grep -P "set_mempolicy\(MPOL_PREFERRED, \[0x0*1\]" $straceLog
echo "PID1 NUMAPolicy support - Local policy w/o mask"
writePID1NUMAPolicy "local"
pid1ReloadWithStrace
# Kernel requires that nodemask argument is set to NULL when setting default policy
# The unpatched versions of strace don't recognize the MPOL_LOCAL constant and
# return a numerical constant instead (with a comment):
# set_mempolicy(0x4 /* MPOL_??? */, NULL, 0) = 0
# Let's cover this scenario as well
grep -E "set_mempolicy\((MPOL_LOCAL|0x4 [^,]*), NULL" $straceLog
echo "PID1 NUMAPolicy support - Local policy w/ mask"
writePID1NUMAPolicy "local" "0"
pid1ReloadWithStrace
grep -E "set_mempolicy\((MPOL_LOCAL|0x4 [^,]*), NULL" $straceLog
echo "Unit file NUMAPolicy support - Default policy w/o mask"
writeTestUnitNUMAPolicy "default"
pid1StartUnitWithStrace $testUnit
systemctlCheckNUMAProperties $testUnit "default"
pid1StopUnit $testUnit
grep "set_mempolicy(MPOL_DEFAULT, NULL" $straceLog
echo "Unit file NUMAPolicy support - Default policy w/ mask"
writeTestUnitNUMAPolicy "default" "0"
pid1StartUnitWithStrace $testUnit
systemctlCheckNUMAProperties $testUnit "default" "0"
pid1StopUnit $testUnit
# Mask must be ignored
grep "set_mempolicy(MPOL_DEFAULT, NULL" $straceLog
echo "Unit file NUMAPolicy support - Bind policy w/o mask"
writeTestUnitNUMAPolicy "bind"
pid1StartUnitWithJournal $testUnit
pid1StopUnit $testUnit
grep "numa-test.service: Main process exited, code=exited, status=242/NUMA" $journalLog
echo "Unit file NUMAPolicy support - Bind policy w/ mask"
writeTestUnitNUMAPolicy "bind" "0"
pid1StartUnitWithStrace $testUnit
systemctlCheckNUMAProperties $testUnit "bind" "0"
pid1StopUnit $testUnit
grep -P "set_mempolicy\(MPOL_BIND, \[0x0*1\]" $straceLog
echo "Unit file NUMAPolicy support - Interleave policy w/o mask"
writeTestUnitNUMAPolicy "interleave"
pid1StartUnitWithStrace $testUnit
pid1StopUnit $testUnit
grep "numa-test.service: Main process exited, code=exited, status=242/NUMA" $journalLog
echo "Unit file NUMAPolicy support - Interleave policy w/ mask"
writeTestUnitNUMAPolicy "interleave" "0"
pid1StartUnitWithStrace $testUnit
systemctlCheckNUMAProperties $testUnit "interleave" "0"
pid1StopUnit $testUnit
grep -P "set_mempolicy\(MPOL_INTERLEAVE, \[0x0*1\]" $straceLog
echo "Unit file NUMAPolicy support - Preferred policy w/o mask"
writeTestUnitNUMAPolicy "preferred"
pid1StartUnitWithJournal $testUnit
systemctlCheckNUMAProperties $testUnit "preferred"
pid1StopUnit $testUnit
! grep "numa-test.service: Main process exited, code=exited, status=242/NUMA" $journalLog
echo "Unit file NUMAPolicy support - Preferred policy w/ mask"
writeTestUnitNUMAPolicy "preferred" "0"
pid1StartUnitWithStrace $testUnit
systemctlCheckNUMAProperties $testUnit "preferred" "0"
pid1StopUnit $testUnit
grep -P "set_mempolicy\(MPOL_PREFERRED, \[0x0*1\]" $straceLog
echo "Unit file NUMAPolicy support - Local policy w/o mask"
writeTestUnitNUMAPolicy "local"
pid1StartUnitWithStrace $testUnit
systemctlCheckNUMAProperties $testUnit "local"
pid1StopUnit $testUnit
grep -E "set_mempolicy\((MPOL_LOCAL|0x4 [^,]*), NULL" $straceLog
echo "Unit file NUMAPolicy support - Local policy w/ mask"
writeTestUnitNUMAPolicy "local" "0"
pid1StartUnitWithStrace $testUnit
systemctlCheckNUMAProperties $testUnit "local" "0"
pid1StopUnit $testUnit
# Mask must be ignored
grep -E "set_mempolicy\((MPOL_LOCAL|0x4 [^,]*), NULL" $straceLog
echo "Unit file CPUAffinity=NUMA support"
writeTestUnitNUMAPolicy "bind" "0"
echo "CPUAffinity=numa" >> $testUnitNUMAConf
systemctl daemon-reload
systemctl start $testUnit
systemctlCheckNUMAProperties $testUnit "bind" "0"
pid=$(systemctl show --value -p MainPID $testUnit)
cpulist=$(cat /sys/devices/system/node/node0/cpulist)
affinity_systemd=$(systemctl show --value -p CPUAffinity $testUnit)
[ $cpulist = $affinity_systemd ]
pid1StopUnit $testUnit
echo "systemd-run NUMAPolicy support"
runUnit='numa-systemd-run-test.service'
systemd-run -p NUMAPolicy=default --unit $runUnit sleep 1000
systemctlCheckNUMAProperties $runUnit "default"
pid1StopUnit $runUnit
systemd-run -p NUMAPolicy=default -p NUMAMask=0 --unit $runUnit sleep 1000
systemctlCheckNUMAProperties $runUnit "default" ""
pid1StopUnit $runUnit
systemd-run -p NUMAPolicy=bind -p NUMAMask=0 --unit $runUnit sleep 1000
systemctlCheckNUMAProperties $runUnit "bind" "0"
pid1StopUnit $runUnit
systemd-run -p NUMAPolicy=interleave -p NUMAMask=0 --unit $runUnit sleep 1000
systemctlCheckNUMAProperties $runUnit "interleave" "0"
pid1StopUnit $runUnit
systemd-run -p NUMAPolicy=preferred -p NUMAMask=0 --unit $runUnit sleep 1000
systemctlCheckNUMAProperties $runUnit "preferred" "0"
pid1StopUnit $runUnit
systemd-run -p NUMAPolicy=local --unit $runUnit sleep 1000
systemctlCheckNUMAProperties $runUnit "local"
pid1StopUnit $runUnit
systemd-run -p NUMAPolicy=local -p NUMAMask=0 --unit $runUnit sleep 1000
systemctlCheckNUMAProperties $runUnit "local" ""
pid1StopUnit $runUnit
systemd-run -p NUMAPolicy=local -p NUMAMask=0 -p CPUAffinity=numa --unit $runUnit sleep 1000
systemctlCheckNUMAProperties $runUnit "local" ""
systemctl cat $runUnit | grep -q 'CPUAffinity=numa'
pid1StopUnit $runUnit
fi
# Cleanup
rm -rf $testDir
rm -rf $confDir
systemctl daemon-reload
systemd-analyze log-level info
echo OK > /testok
exit 0