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systemd/test/units/testsuite-60.sh
2022-04-08 15:18:29 +02:00

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#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later
set -eux
set -o pipefail
systemd-analyze log-level debug
systemd-analyze log-target journal
NUM_DIRS=20
# make sure we can handle mounts at very long paths such that mount unit name must be hashed to fall within our unit name limit
LONGPATH="$(printf "/$(printf "x%0.s" {1..255})%0.s" {1..7})"
LONGMNT="$(systemd-escape --suffix=mount --path "$LONGPATH")"
TS="$(date '+%H:%M:%S')"
mkdir -p "$LONGPATH"
mount -t tmpfs tmpfs "$LONGPATH"
systemctl daemon-reload
# check that unit is active(mounted)
systemctl --no-pager show -p SubState --value "$LONGPATH" | grep -q mounted
# check that relevant part of journal doesn't contain any errors related to unit
[ "$(journalctl -b --since="$TS" --priority=err | grep -c "$LONGMNT")" = "0" ]
# check that we can successfully stop the mount unit
systemctl stop "$LONGPATH"
rm -rf "$LONGPATH"
# mount/unmount enough times to trigger the /proc/self/mountinfo parsing rate limiting
for ((i = 0; i < NUM_DIRS; i++)); do
mkdir "/tmp/meow${i}"
done
for ((i = 0; i < NUM_DIRS; i++)); do
mount -t tmpfs tmpfs "/tmp/meow${i}"
done
systemctl daemon-reload
systemctl list-units -t mount tmp-meow* | grep -q tmp-meow
for ((i = 0; i < NUM_DIRS; i++)); do
umount "/tmp/meow${i}"
done
# figure out if we have entered the rate limit state
entered_rl=0
exited_rl=0
timeout="$(date -ud "2 minutes" +%s)"
while [[ $(date -u +%s) -le ${timeout} ]]; do
if journalctl -u init.scope | grep -q "(mount-monitor-dispatch) entered rate limit"; then
entered_rl=1
break
fi
sleep 5
done
# if the infra is slow we might not enter the rate limit state; in that case skip the exit check
if [ "${entered_rl}" = "1" ]; then
exited_rl=0
timeout="$(date -ud "2 minutes" +%s)"
while [[ $(date -u +%s) -le ${timeout} ]]; do
if journalctl -u init.scope | grep -q "(mount-monitor-dispatch) left rate limit"; then
exited_rl=1
break
fi
sleep 5
done
if [ "${exited_rl}" = "0" ]; then
exit 24
fi
fi
# give some time for units to settle so we don't race between exiting the rate limit state and cleaning up the units
sleep 60
systemctl daemon-reload
sleep 60
# verify that the mount units are always cleaned up at the end
if systemctl list-units -t mount tmp-meow* | grep -q tmp-meow; then
exit 42
fi
systemd-analyze log-level info
echo OK >/testok
exit 0