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d9b9751032
lvm2/test/lib/aux.sh
Zdenek Kabelac d9b9751032 tests: add aux remove_dm_devs 
Add function to remove DM devices and dies
if some device can't be removed.
2021-03-28 14:22:11 +02:00

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#!/usr/bin/env bash
# Copyright (C) 2011-2017 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
. lib/utils
test -n "$BASH" && set -euE -o pipefail
run_valgrind() {
# Execute script which may use $TESTNAME for creating individual
# log files for each execute command
exec "${VALGRIND:-valgrind}" "$@"
}
expect_failure() {
echo "TEST EXPECT FAILURE"
}
check_daemon_in_builddir() {
# skip if we don't have our own deamon...
if test -z "${installed_testsuite+varset}"; then
(which "$1" 2>/dev/null | grep "$abs_builddir" >/dev/null ) || skip "$1 is not in executed path."
fi
rm -f debug.log strace.log
}
create_corosync_conf() {
COROSYNC_CONF="/etc/corosync/corosync.conf"
COROSYNC_NODE=$(hostname)
if test -a "$COROSYNC_CONF"; then
if ! grep "created by lvm test suite" "$COROSYNC_CONF"; then
rm "$COROSYNC_CONF"
else
mv "$COROSYNC_CONF" "$COROSYNC_CONF.prelvmtest"
fi
fi
sed -e "s/@LOCAL_NODE@/$COROSYNC_NODE/" lib/test-corosync-conf > "$COROSYNC_CONF"
echo "created new $COROSYNC_CONF"
}
DLM_CONF="/etc/dlm/dlm.conf"
create_dlm_conf() {
if test -a "$DLM_CONF"; then
if ! grep "created by lvm test suite" "$DLM_CONF"; then
rm "$DLM_CONF"
else
mv "$DLM_CONF" "$DLM_CONF.prelvmtest"
fi
fi
cp lib/test-dlm-conf "$DLM_CONF"
echo "created new $DLM_CONF"
}
prepare_dlm() {
if pgrep dlm_controld ; then
echo "Cannot run while existing dlm_controld process exists."
exit 1
fi
if pgrep corosync; then
echo "Cannot run while existing corosync process exists."
exit 1
fi
create_corosync_conf
create_dlm_conf
systemctl start corosync
sleep 1
if ! pgrep corosync; then
echo "Failed to start corosync."
exit 1
fi
systemctl start dlm
sleep 1
if ! pgrep dlm_controld; then
echo "Failed to start dlm."
exit 1
fi
}
SANLOCK_CONF="/etc/sanlock/sanlock.conf"
create_sanlock_conf() {
if test -a "$SANLOCK_CONF"; then
if ! grep "created by lvm test suite" "$SANLOCK_CONF"; then
rm "$SANLOCK_CONF"
else
mv "$SANLOCK_CONF" "$SANLOCK_CONF.prelvmtest"
fi
fi
cp lib/test-sanlock-conf "$SANLOCK_CONF"
echo "created new $SANLOCK_CONF"
}
prepare_sanlock() {
if pgrep sanlock ; then
echo "Cannot run while existing sanlock process exists"
exit 1
fi
create_sanlock_conf
systemctl start sanlock
if ! pgrep sanlock; then
echo "Failed to start sanlock"
exit 1
fi
}
prepare_lvmlockd() {
if pgrep lvmlockd ; then
echo "Cannot run while existing lvmlockd process exists"
exit 1
fi
if test -n "$LVM_TEST_LOCK_TYPE_SANLOCK"; then
# make check_lvmlockd_sanlock
echo "starting lvmlockd for sanlock"
lvmlockd -o 2
elif test -n "$LVM_TEST_LOCK_TYPE_DLM"; then
# make check_lvmlockd_dlm
echo "starting lvmlockd for dlm"
lvmlockd
elif test -n "$LVM_TEST_LVMLOCKD_TEST_DLM"; then
# make check_lvmlockd_test
echo "starting lvmlockd --test (dlm)"
lvmlockd --test -g dlm
elif test -n "$LVM_TEST_LVMLOCKD_TEST_SANLOCK"; then
# FIXME: add option for this combination of --test and sanlock
echo "starting lvmlockd --test (sanlock)"
lvmlockd --test -g sanlock -o 2
else
echo "not starting lvmlockd"
exit 0
fi
sleep 1
if ! pgrep lvmlockd; then
echo "Failed to start lvmlockd"
exit 1
fi
}
prepare_clvmd() {
test "${LVM_TEST_LOCKING:-0}" -ne 3 && return # not needed
if pgrep clvmd ; then
skip "Cannot use fake cluster locking with real clvmd ($(pgrep clvmd)) running."
fi
check_daemon_in_builddir clvmd
test -e "$DM_DEV_DIR/control" || dmsetup table >/dev/null # create control node
# skip if singlenode is not compiled in
(clvmd --help 2>&1 | grep "Available cluster managers" | grep "singlenode" >/dev/null) || \
skip "Compiled clvmd does not support singlenode for testing."
# lvmconf "activation/monitoring = 1"
local run_valgrind=""
test "${LVM_VALGRIND_CLVMD:-0}" -eq 0 || run_valgrind="run_valgrind"
rm -f "$CLVMD_PIDFILE"
echo "<======== Starting CLVMD ========>"
echo -n "## preparing clvmd..."
# lvs is executed from clvmd - use our version
LVM_LOG_FILE_EPOCH=CLVMD LVM_LOG_FILE_MAX_LINES=1000000 $run_valgrind clvmd -Isinglenode -d 1 -f &
echo $! > LOCAL_CLVMD
for i in {200..0} ; do
test "$i" -eq 0 && die "Startup of clvmd is too slow."
test -e "$CLVMD_PIDFILE" && test -e "${CLVMD_PIDFILE%/*}/lvm/clvmd.sock" && break
echo -n .
sleep .1
done
echo ok
}
prepare_dmeventd() {
if pgrep dmeventd ; then
skip "Cannot test dmeventd with real dmeventd ($(pgrep dmeventd)) running."
fi
check_daemon_in_builddir dmeventd
lvmconf "activation/monitoring = 1"
local run_valgrind=""
test "${LVM_VALGRIND_DMEVENTD:-0}" -eq 0 || run_valgrind="run_valgrind"
echo -n "## preparing dmeventd..."
# LVM_LOG_FILE_EPOCH=DMEVENTD $run_valgrind dmeventd -fddddl "$@" 2>&1 &
LVM_LOG_FILE_EPOCH=DMEVENTD $run_valgrind dmeventd -fddddl "$@" >debug.log_DMEVENTD_out 2>&1 &
echo $! > LOCAL_DMEVENTD
# FIXME wait for pipe in /var/run instead
for i in {200..0} ; do
test "$i" -eq 0 && die "Startup of dmeventd is too slow."
test -e "${DMEVENTD_PIDFILE}" && break
echo -n .
sleep .1
done
echo ok
}
prepare_lvmpolld() {
lvmconf "global/use_lvmpolld = 1"
local run_valgrind=""
test "${LVM_VALGRIND_LVMPOLLD:-0}" -eq 0 || run_valgrind="run_valgrind"
kill_sleep_kill_ LOCAL_LVMPOLLD "${LVM_VALGRIND_LVMPOLLD:-0}"
echo -n "## preparing lvmpolld..."
$run_valgrind lvmpolld -f "$@" -s "$TESTDIR/lvmpolld.socket" -B "$TESTDIR/lib/lvm" -l all &
echo $! > LOCAL_LVMPOLLD
for i in {200..0} ; do
test "$i" -eq 0 && die "Startup of lvmpolld is too slow."
test -e "$TESTDIR/lvmpolld.socket" && break
echo -n .;
sleep .1;
done # wait for the socket
echo ok
}
lvmpolld_talk() {
local use=nc
if type -p socat >& /dev/null; then
use=socat
elif echo | not nc -U "$TESTDIR/lvmpolld.socket" ; then
echo "WARNING: Neither socat nor nc -U seems to be available." 1>&2
echo "## failed to contact lvmpolld."
return 1
fi
if test "$use" = nc ; then
nc -U "$TESTDIR/lvmpolld.socket"
else
socat "unix-connect:$TESTDIR/lvmpolld.socket" -
fi | tee -a lvmpolld-talk.txt
}
lvmpolld_dump() {
(echo 'request="dump"'; echo '##') | lvmpolld_talk "$@"
}
prepare_lvmdbusd() {
local daemon
rm -f debug.log_LVMDBUSD_out
kill_sleep_kill_ LOCAL_LVMDBUSD 0
# FIXME: This is not correct! Daemon is auto started.
echo -n "## checking lvmdbusd is NOT running..."
if pgrep -f -l lvmdbusd | grep python3 || pgrep -x -l lvmdbusd ; then
skip "Cannot run lvmdbusd while existing lvmdbusd process exists"
fi
echo ok
# skip if we don't have our own lvmdbusd...
echo -n "## find lvmdbusd to use..."
if test -z "${installed_testsuite+varset}"; then
# NOTE: this is always present - additional checks are needed:
daemon="$abs_top_builddir/daemons/lvmdbusd/lvmdbusd"
if test -x "$daemon" || chmod ugo+x "$daemon"; then
echo "$daemon"
else
echo "Failed to make '$daemon' executable">&2
return 1
fi
# Setup the python path so we can run
export PYTHONPATH="$abs_top_builddir/daemons"
else
daemon=$(which lvmdbusd || :)
echo "$daemon"
fi
test -x "$daemon" || skip "The lvmdbusd daemon is missing"
which python3 >/dev/null || skip "Missing python3"
python3 -c "import pyudev, dbus, gi.repository" || skip "Missing python modules"
# Copy the needed file to run on the system bus if it doesn't
# already exist
if [ ! -f /etc/dbus-1/system.d/com.redhat.lvmdbus1.conf ]; then
install -m 644 "$abs_top_builddir/scripts/com.redhat.lvmdbus1.conf" /etc/dbus-1/system.d/
fi
echo "## preparing lvmdbusd..."
lvmconf "global/notify_dbus = 1"
"$daemon" --debug > debug.log_LVMDBUSD_out 2>&1 &
local pid=$!
sleep 1
echo -n "## checking lvmdbusd IS running..."
comm=
# TODO: Is there a better check than wait 1 second and check pid?
if ! comm=$(ps -p $pid -o comm=) >/dev/null || [[ $comm != lvmdbusd ]]; then
echo "Failed to start lvmdbusd daemon"
return 1
fi
echo "$pid" > LOCAL_LVMDBUSD
echo ok
}
#
# Temporary solution to create some occupied thin metadata
# This heavily depends on thin metadata output format to stay as is.
# Currently it expects 2MB thin metadata and 200MB data volume size
# Argument specifies how many devices should be created.
#
prepare_thin_metadata() {
local devices=$1
local transaction_id=${2:-0}
local data_block_size=${3:-128}
local nr_data_blocks=${4:-3200}
local i
echo '<superblock uuid="" time="1" transaction="'"$transaction_id"'" data_block_size="'"$data_block_size"'" nr_data_blocks="'"$nr_data_blocks"'">'
for i in $(seq 1 "$devices")
do
echo ' <device dev_id="'"$i"'" mapped_blocks="37" transaction="'"$i"'" creation_time="0" snap_time="1">'
echo ' <range_mapping origin_begin="0" data_begin="0" length="37" time="0"/>'
echo ' </device>'
done
echo "</superblock>"
}
teardown_devs_prefixed() {
local prefix=$1
local stray=${2:-0}
local IFS=$IFS_NL
local once=1
local dm
rm -rf "${TESTDIR:?}/dev/$prefix*"
# Send idle message to frozen raids (with hope to unfreeze them)
for dm in $(dm_status | grep -E "$prefix.*raid.*frozen"); do
echo "## unfreezing: dmsetup message \"${dm%:*}\""
dmsetup message "${dm%:*}" 0 "idle" &
done
# Resume suspended devices first
for dm in $(dm_info name -S "name=~$PREFIX&&suspended=Suspended"); do
test "$dm" != "No devices found" || break
echo "## resuming: dmsetup resume \"$dm\""
dmsetup clear "$dm"
dmsetup resume "$dm" &
done
wait
local mounts=( $(grep "$prefix" /proc/mounts | cut -d' ' -f1) )
if test ${#mounts[@]} -gt 0; then
test "$stray" -eq 0 || echo "## removing stray mounted devices containing $prefix:" "${mounts[@]}"
if umount -fl "${mounts[@]}"; then
udev_wait
fi
fi
# Remove devices, start with closed (sorted by open count)
# Run 'dmsetup remove' in parallel
rm -f REMOVE_FAILED
#local listdevs=( $(dm_info name,open --sort open,name | grep "$prefix.*:0") )
#dmsetup remove --deferred ${listdevs[@]%%:0} || touch REMOVE_FAILED
# 2nd. loop is trying --force removal which can possibly 'unstuck' some bloked operations
for i in 0 1; do
test "$i" = 1 && test "$stray" = 0 && break # no stray device removal
while :; do
local sortby="name"
local progress=0
# HACK: sort also by minors - so we try to close 'possibly later' created device first
test "$i" = 0 || sortby="-minor"
for dm in $(dm_info name,open --separator ';' --nameprefixes --unquoted --sort open,"$sortby" -S "name=~$prefix" --mangle none || true) ; do
test "$dm" != "No devices found" || break 2
DM_NAME=${dm##DM_NAME=}
DM_NAME=${DM_NAME%%;DM_OPEN*}
DM_OPEN=${dm##*;DM_OPEN=}
local force="-f"
if test "$i" = 0; then
if test "$once" = 1 ; then
once=0
echo "## removing stray mapped devices with names beginning with $prefix: "
fi
test "$DM_OPEN" = 0 || break # stop loop with 1st. opened device
force=""
fi
# Succesfull 'remove' signals progress
dmsetup remove $force "$DM_NAME" --mangle none && progress=1
done
test "$i" = 0 || break
test "$progress" = 1 || break
udev_wait
wait
done # looping till there are some removed devices
done
}
teardown_devs() {
# Delete any remaining dm/udev semaphores
teardown_udev_cookies
test ! -f MD_DEV || cleanup_md_dev
test ! -f DEVICES || teardown_devs_prefixed "$PREFIX"
test ! -f RAMDISK || { modprobe -r brd || true ; }
# NOTE: SCSI_DEBUG_DEV test must come before the LOOP test because
# prepare_scsi_debug_dev() also sets LOOP to short-circuit prepare_loop()
if test -f SCSI_DEBUG_DEV; then
udev_wait
test "${LVM_TEST_PARALLEL:-0}" -eq 1 || modprobe -r scsi_debug
else
test ! -f LOOP || losetup -d "$(< LOOP)" || true
test ! -f LOOPFILE || rm -f "$(< LOOPFILE)"
fi
not diff LOOP BACKING_DEV >/dev/null 2>&1 || rm -f BACKING_DEV
rm -f DEVICES LOOP RAMDISK
# Attempt to remove any loop devices that failed to get torn down if earlier tests aborted
test "${LVM_TEST_PARALLEL:-0}" -eq 1 || test -z "$COMMON_PREFIX" || {
local stray_loops=( $(losetup -a | grep "$COMMON_PREFIX" | cut -d: -f1) )
test ${#stray_loops[@]} -eq 0 || {
teardown_devs_prefixed "$COMMON_PREFIX" 1
echo "## removing stray loop devices containing $COMMON_PREFIX:" "${stray_loops[@]}"
for i in "${stray_loops[@]}" ; do test ! -b "$i" || losetup -d "$i" || true ; done
# Leave test when udev processed all removed devices
udev_wait
}
}
restore_dm_mirror
}
kill_sleep_kill_() {
local pidfile=$1
local slow=$2
if test -s "$pidfile" ; then
pid=$(< "$pidfile")
rm -f "$pidfile"
kill -TERM "$pid" 2>/dev/null || return 0
for i in {0..10} ; do
ps "$pid" >/dev/null || return 0
if test "$slow" -eq 0 ; then sleep .2 ; else sleep 1 ; fi
kill -KILL "$pid" 2>/dev/null || true
done
fi
}
print_procs_by_tag_() {
(ps -o pid,args ehax | grep -we"LVM_TEST_TAG=${1:-kill_me_$PREFIX}") || true
}
count_processes_with_tag() {
print_procs_by_tag_ | wc -l
}
kill_tagged_processes() {
local pid
local wait
# read uses all vars within pipe subshell
local pids=()
while read -r pid wait; do
if test -n "$pid" ; then
echo "## killing tagged process: $pid ${wait:0:120}..."
kill -TERM "$pid" 2>/dev/null || true
fi
pids+=( "$pid" )
done < <(print_procs_by_tag_ "$@")
test ${#pids[@]} -eq 0 && return
# wait if process exited and eventually -KILL
wait=0
for pid in "${pids[@]}" ; do
while ps "$pid" > /dev/null && test "$wait" -le 10; do
sleep .2
wait=$(( wait + 1 ))
done
test "$wait" -le 10 || kill -KILL "$pid" 2>/dev/null || true
done
}
teardown() {
local TEST_LEAKED_DEVICES=""
echo -n "## teardown..."
unset LVM_LOG_FILE_EPOCH
if test -f TESTNAME ; then
if test ! -f SKIP_THIS_TEST ; then
# Evaluate left devices only for non-skipped tests
TEST_LEAKED_DEVICES=$(dmsetup table | grep "$PREFIX" | \
grep -Ev "${PREFIX}(pv|[0-9])" | \
grep -v "$(cat ERR_DEV_NAME 2>/dev/null)" | \
grep -v "$(cat ZERO_DEV_NAME 2>/dev/null)") || true
fi
kill_tagged_processes
if test -n "$LVM_TEST_LVMLOCKD_TEST" ; then
echo ""
echo "## stopping lvmlockd in teardown"
killall lvmlockd
sleep 1
killall lvmlockd || true
sleep 1
killall -9 lvmlockd || true
fi
dm_table | not grep -E -q "$vg|$vg1|$vg2|$vg3|$vg4" || {
# Avoid activation of dmeventd if there is no pid
cfg=$(test -s LOCAL_DMEVENTD || echo "--config activation{monitoring=0}")
if dm_info suspended,name | grep "^Suspended:.*$PREFIX" >/dev/null ; then
echo "## skipping vgremove, suspended devices detected."
else
vgremove -ff "$cfg" \
"$vg" "$vg1" "$vg2" "$vg3" "$vg4" &>/dev/null || rm -f debug.log strace.log
fi
}
kill_sleep_kill_ LOCAL_LVMDBUSD 0
echo -n .
kill_sleep_kill_ LOCAL_LVMPOLLD "${LVM_VALGRIND_LVMPOLLD:-0}"
echo -n .
kill_sleep_kill_ LOCAL_CLVMD "${LVM_VALGRIND_CLVMD:-0}"
echo -n .
kill_sleep_kill_ LOCAL_DMEVENTD "${LVM_VALGRIND_DMEVENTD:-0}"
echo -n .
test -d "$DM_DEV_DIR/mapper" && teardown_devs
echo -n .
fi
test -z "$TEST_LEAKED_DEVICES" || {
echo "## unexpected devices left dm table:"
echo "$TEST_LEAKED_DEVICES"
return 1
}
if test "${LVM_TEST_PARALLEL:-0}" = 0 && test -z "$RUNNING_DMEVENTD"; then
not pgrep dmeventd &>/dev/null # printed in STACKTRACE
fi
echo -n .
test -n "$TESTDIR" && {
cd "$TESTOLDPWD" || die "Failed to enter $TESTOLDPWD"
# after this delete no further write is possible
rm -rf "${TESTDIR:?}" || echo BLA
}
# Remove any dangling symlink in /dev/disk (our tests can confuse udev)
test -d /dev/disk && {
find /dev/disk -type l ! -exec /usr/bin/test -e {} \; -print | xargs rm -f || true
}
# Remove any metadata archives and backups from this test on system
rm -f /etc/lvm/archive/${PREFIX}* /etc/lvm/backup/${PREFIX}*
echo "ok"
}
prepare_loop() {
local size=$1
shift # all other params are directly passed to all 'losetup' calls
local i
local slash
test -f LOOP && LOOP=$(< LOOP)
echo -n "## preparing loop device..."
# skip if prepare_scsi_debug_dev() was used
if test -f SCSI_DEBUG_DEV -a -f LOOP ; then
echo "(skipped)"
return 0
fi
test ! -e LOOP
test -n "$DM_DEV_DIR"
for i in 0 1 2 3 4 5 6 7; do
test -e "$DM_DEV_DIR/loop$i" || mknod "$DM_DEV_DIR/loop$i" b 7 $i
done
echo -n .
local LOOPFILE="$PWD/test.img"
rm -f "$LOOPFILE"
dd if=/dev/zero of="$LOOPFILE" bs=$((1024*1024)) count=0 seek=$(( size + 1 )) 2> /dev/null
if LOOP=$(losetup "$@" -s -f "$LOOPFILE" 2>/dev/null); then
:
elif LOOP=$(losetup -f) && losetup "$@" "$LOOP" "$LOOPFILE"; then
# no -s support
:
else
# no -f support
# Iterate through $DM_DEV_DIR/loop{,/}{0,1,2,3,4,5,6,7}
for slash in '' /; do
for i in 0 1 2 3 4 5 6 7; do
local dev="$DM_DEV_DIR/loop$slash$i"
! losetup "$dev" >/dev/null 2>&1 || continue
# got a free
losetup "$@" "$dev" "$LOOPFILE"
LOOP=$dev
break
done
test -z "$LOOP" || break
done
fi
test -n "$LOOP" # confirm or fail
BACKING_DEV=$LOOP
echo "$LOOP" > LOOP
echo "$LOOP" > BACKING_DEV
echo "ok ($LOOP)"
}
prepare_ramdisk() {
local size=$1
echo -n "## preparing ramdisk device..."
modprobe brd rd_size=$((size * 1024)) || return
BACKING_DEV=/dev/ram0
echo "ok ($BACKING_DEV)"
touch RAMDISK
}
prepare_real_devs() {
aux lvmconf 'devices/scan = "/dev"'
touch REAL_DEVICES
if test -n "$LVM_TEST_DEVICE_LIST"; then
local count=0
while read path; do
REAL_DEVICES[$count]=$path
count=$(( count + 1 ))
aux extend_filter "a|$path|"
dd if=/dev/zero of="$path" bs=32k count=1
wipefs -a "$path" 2>/dev/null || true
done < $LVM_TEST_DEVICE_LIST
fi
printf "%s\\n" "${REAL_DEVICES[@]}" > REAL_DEVICES
}
# A drop-in replacement for prepare_loop() that uses scsi_debug to create
# a ramdisk-based SCSI device upon which all LVM devices will be created
# - scripts must take care not to use a DEV_SIZE that will enduce OOM-killer
prepare_scsi_debug_dev() {
local DEV_SIZE=$1
shift # rest of params directly passed to modprobe
local DEBUG_DEV
rm -f debug.log strace.log
test ! -f "SCSI_DEBUG_DEV" || return 0
test ! -f LOOP
test -n "$DM_DEV_DIR"
# Skip test if scsi_debug module is unavailable or is already in use
modprobe --dry-run scsi_debug || skip
lsmod | not grep scsi_debug >/dev/null || skip
# Create the scsi_debug device and determine the new scsi device's name
# NOTE: it will _never_ make sense to pass num_tgts param;
# last param wins.. so num_tgts=1 is imposed
touch SCSI_DEBUG_DEV
modprobe scsi_debug dev_size_mb="$(( DEV_SIZE + 2 ))" "$@" num_tgts=1 || skip
for i in {1..20} ; do
sleep .1 # allow for async Linux SCSI device registration
DEBUG_DEV="/dev/$(grep -H scsi_debug /sys/block/sd*/device/model | cut -f4 -d /)"
test -b "$DEBUG_DEV" && break
done
test -b "$DEBUG_DEV" || return 1 # should not happen
# Create symlink to scsi_debug device in $DM_DEV_DIR
SCSI_DEBUG_DEV="$DM_DEV_DIR/$(basename "$DEBUG_DEV")"
echo "$SCSI_DEBUG_DEV" > SCSI_DEBUG_DEV
echo "$SCSI_DEBUG_DEV" > BACKING_DEV
# Setting $LOOP provides means for prepare_devs() override
test "$DEBUG_DEV" = "$SCSI_DEBUG_DEV" || ln -snf "$DEBUG_DEV" "$SCSI_DEBUG_DEV"
}
cleanup_scsi_debug_dev() {
teardown_devs
rm -f SCSI_DEBUG_DEV LOOP
}
mdadm_create() {
local devid
local mddev
which mdadm >/dev/null || skip "mdadm tool is missing!"
cleanup_md_dev
rm -f debug.log strace.log
# try to find free MD node
# using the old naming /dev/mdXXX
# if we need more MD arrays test suite more likely leaked them
for devid in {127..150} ; do
grep -q "md${devid}" /proc/mdstat || break
done
test "$devid" -lt "150" || skip "Cannot find free /dev/mdXXX node!"
mddev=/dev/md${devid}
mdadm --create "$mddev" "$@" || {
# Some older 'mdadm' version managed to open and close devices internaly
# and reporting non-exclusive access on such device
# let's just skip the test if this happens.
# Note: It's pretty complex to get rid of consequences
# the following sequence avoid leaks on f19
# TODO: maybe try here to recreate few times....
mdadm --stop "$mddev" || true
udev_wait
while [ "$#" -ne 0 ] ; do
case "$1" in
*"$PREFIX"*) mdadm --zero-superblock "$1" || true ;;
esac
shift
done
udev_wait
skip "Test skipped, unreliable mdadm detected!"
}
for i in {10..0} ; do
test -e "$mddev" && break
echo "Waiting for $mddev."
sleep .5
done
test -b "$mddev" || skip "mdadm has not created device!"
echo "$mddev" > MD_DEV
# LVM/DM will see this device
case "$DM_DEV_DIR" in
"/dev") echo "$mddev" > MD_DEV_PV ;;
*) rm -f "$DM_DEV_DIR/md${devid}"
cp -LR "$mddev" "$DM_DEV_DIR"
echo "${DM_DEV_DIR}/md${devid}" > MD_DEV_PV ;;
esac
rm -f MD_DEVICES
while [ "$#" -ne 0 ] ; do
case "$1" in
*"$PREFIX"*) echo "$1" >> MD_DEVICES ;;
esac
shift
done
}
mdadm_assemble() {
STRACE=
[ "$DM_DEV_DIR" = "/dev" ] && mdadm -V 2>&1 | grep " v3.2" && {
# use this 'trick' to slow down mdadm which otherwise
# is racing with udev rule since mdadm internally
# opens and closes raid leg devices in RW mode and then
# tries to get exlusive access to the leg device during
# insertion to kernel and fails during assembly
# There can be some other affected version of mdadm.
STRACE="strace -f -o /dev/null"
}
$STRACE mdadm --assemble "$@"
udev_wait
}
cleanup_md_dev() {
local IFS=$IFS_NL
local i
local dev
local base
local mddev
test -f MD_DEV || return 0
mddev=$(< MD_DEV)
base=$(basename "$mddev")
# try to find and remove any DM device on top of cleaned MD
# assume /dev/mdXXX is 9:MINOR
local minor=${mddev##/dev/md}
for i in $(dmsetup table | grep 9:$minor | cut -d: -f1) ; do
dmsetup remove $i || {
dmsetup --force remove $i || true
}
done
for i in {0..10} ; do
grep -q "$base" /proc/mdstat || break
test "$i" = 0 || {
sleep .1
echo "$mddev is still present, stopping again"
cat /proc/mdstat
}
mdadm --stop "$mddev" || true
udev_wait # wait till events are process, not zeroing to early
done
test "$DM_DEV_DIR" = "/dev" || rm -f "$(< MD_DEV_PV)"
for dev in $(< MD_DEVICES); do
mdadm --zero-superblock "$dev" 2>/dev/null || true
done
udev_wait
rm -f MD_DEV MD_DEVICES MD_DEV_PV
}
wipefs_a() {
local dev=$1
local have_wipefs=1
shift
if test -n "$LVM_TEST_DEVICES_FILE"; then
lvmdevices --deldev $dev || true
fi
if test -f HAVE_WIPEFS ; then
have_wipefs=$(< HAVE_WIPEFS)
else
wipefs -V >/dev/null 2>&1 || have_wipefs=0
echo "$have_wipefs" > HAVE_WIPEFS
fi
udev_wait
if [ "$have_wipefs" = "1" ] ; then
wipefs -a "$dev" || {
echo "$dev: device in-use, retrying wipe again."
sleep 1
udev_wait
wipefs -a "$dev"
}
else
dd if=/dev/zero of="$dev" bs=4096 count=8 oflag=direct >/dev/null || true
mdadm --zero-superblock "$dev" 2>/dev/null || true
fi
if test -n "$LVM_TEST_DEVICES_FILE"; then
lvmdevices --adddev $dev || true
fi
udev_wait
}
prepare_backing_dev() {
local size=${1=32}
shift
if test -f BACKING_DEV; then
BACKING_DEV=$(< BACKING_DEV)
return 0
elif test -b "$LVM_TEST_BACKING_DEVICE"; then
BACKING_DEV=$LVM_TEST_BACKING_DEVICE
echo "$BACKING_DEV" > BACKING_DEV
return 0
elif test "${LVM_TEST_PREFER_BRD-1}" = "1" && \
test ! -d /sys/block/ram0 && \
kernel_at_least 4 16 0 && \
test "$size" -lt 16384; then
# try to use ramdisk if possible, but for
# big allocs (>16G) do not try to use ramdisk
# Also we can't use BRD device prior kernel 4.16
# since they were DAX based and lvm2 often relies
# in save table loading between exiting backend device
# and bio-based 'error' device.
# However with request based DAX brd device we get this:
# device-mapper: ioctl: can't change device type after initial table load.
prepare_ramdisk "$size" "$@" && return
echo "(failed)"
fi
prepare_loop "$size" "$@"
}
prepare_devs() {
local n=${1:-3}
local devsize=${2:-34}
local pvname=${3:-pv}
local header_shift=1 # shift header from begin & end of device by 1MiB
# sanlock requires more space for the internal sanlock lv
# This could probably be lower, but what are the units?
if test -n "$LVM_TEST_LOCK_TYPE_SANLOCK" ; then
devsize=1024
fi
touch DEVICES
prepare_backing_dev $(( n * devsize + 2 * header_shift ))
blkdiscard "$BACKING_DEV" 2>/dev/null || true
echo -n "## preparing $n devices..."
local size=$(( devsize * 2048 )) # sectors
local count=0
rm -f CREATE_FAILED
init_udev_transaction
for i in $(seq 1 "$n"); do
local name="${PREFIX}$pvname$i"
local dev="$DM_DEV_DIR/mapper/$name"
DEVICES[$count]=$dev
count=$(( count + 1 ))
echo 0 $size linear "$BACKING_DEV" $(( ( i - 1 ) * size + ( header_shift * 2048 ) )) > "$name.table"
dmsetup create -u "TEST-$name" "$name" "$name.table" || touch CREATE_FAILED &
test -f CREATE_FAILED && break;
done
wait
finish_udev_transaction
if test -f CREATE_FAILED ; then
if test -z "$LVM_TEST_BACKING_DEVICE"; then
echo "failed"
return 1
fi
LVM_TEST_BACKING_DEVICE=
rm -f BACKING_DEV CREATE_FAILED
prepare_devs "$@"
return $?
fi
# non-ephemeral devices need to be cleared between tests
test -f LOOP -o -f RAMDISK || for d in "${DEVICES[@]}"; do
# ensure disk header is always zeroed
dd if=/dev/zero of="$d" bs=32k count=1
wipefs -a "$d" 2>/dev/null || true
done
if test -n "$LVM_TEST_DEVICES_FILE"; then
mkdir -p $TESTDIR/etc/lvm/devices || true
rm $TESTDIR/etc/lvm/devices/system.devices || true
for d in "${DEVICES[@]}"; do
lvmdevices --adddev $dev || true
done
fi
#for i in `seq 1 $n`; do
# local name="${PREFIX}$pvname$i"
# dmsetup info -c $name
#done
#for i in `seq 1 $n`; do
# local name="${PREFIX}$pvname$i"
# dmsetup table $name
#done
printf "%s\\n" "${DEVICES[@]}" > DEVICES
# ( IFS=$'\n'; echo "${DEVICES[*]}" ) >DEVICES
echo "ok"
}
common_dev_() {
local tgtype=$1
local dev=$2
local name=${dev##*/}
shift 2
local read_ms=${1-0}
local write_ms=${2-0}
case "$tgtype" in
delay)
test "$read_ms" -eq 0 && test "$write_ms" -eq 0 && {
# zero delay is just equivalent to 'enable_dev'
enable_dev "$dev"
return
}
shift 2
;;
delayzero)
shift 2
# zero delay is just equivalent to 'zero_dev'
test "$read_ms" -eq 0 && test "$write_ms" -eq 0 && tgtype="zero"
;;
# error|zero target does not take read_ms & write_ms only offset list
esac
local pos
local size
local type
local pvdev
local offset
read -r pos size type pvdev offset < "$name.table"
for fromlen in "${@-0:}"; do
from=${fromlen%%:*}
len=${fromlen##*:}
if test "$len" = "$fromlen"; then
# Missing the colon at the end: empty len
len=
fi
test -n "$len" || len=$(( size - from ))
diff=$(( from - pos ))
if test $diff -gt 0 ; then
echo "$pos $diff $type $pvdev $(( pos + offset ))"
pos=$(( pos + diff ))
elif test $diff -lt 0 ; then
die "Position error"
fi
case "$tgtype" in
delay)
echo "$from $len delay $pvdev $(( pos + offset )) $read_ms $pvdev $(( pos + offset )) $write_ms" ;;
writeerror)
echo "$from $len delay $pvdev $(( pos + offset )) 0 $(cat ERR_DEV) 0 0" ;;
delayzero)
echo "$from $len delay $(cat ZERO_DEV) 0 $read_ms $(cat ZERO_DEV) 0 $write_ms" ;;
error|zero)
echo "$from $len $tgtype" ;;
esac
pos=$(( pos + len ))
done > "$name.devtable"
diff=$(( size - pos ))
test "$diff" -gt 0 && echo "$pos $diff $type $pvdev $(( pos + offset ))" >>"$name.devtable"
restore_from_devtable "$dev"
}
# Replace linear PV device with its 'delayed' version
# Could be used to more deterministicaly hit some problems.
# Parameters: {device path} [read delay ms] [write delay ms] [offset[:[size]]]...
# Original device is restored when both delay params are 0 (or missing).
# If the size is missing, the remaing portion of device is taken
# i.e. delay_dev "$dev1" 0 200 256:
delay_dev() {
if test ! -f HAVE_DM_DELAY ; then
target_at_least dm-delay 1 1 0 || return 0
touch HAVE_DM_DELAY
fi
common_dev_ delay "$@"
}
disable_dev() {
local dev
local silent=""
local error=""
local notify=""
while test -n "$1"; do
if test "$1" = "--silent"; then
silent=1
shift
elif test "$1" = "--error"; then
error=1
shift
else
break
fi
done
udev_wait
for dev in "$@"; do
maj=$(($(stat -L --printf=0x%t "$dev")))
min=$(($(stat -L --printf=0x%T "$dev")))
echo "Disabling device $dev ($maj:$min)"
notify="$notify $maj:$min"
if test -n "$error"; then
echo 0 10000000 error | dmsetup load "$dev"
dmsetup resume "$dev"
else
dmsetup remove -f "$dev" 2>/dev/null || true
fi
done
}
enable_dev() {
local dev
local silent=""
if test "$1" = "--silent"; then
silent=1
shift
fi
rm -f debug.log strace.log
init_udev_transaction
for dev in "$@"; do
local name=${dev##*/}
dmsetup create -u "TEST-$name" "$name" "$name.table" 2>/dev/null || \
dmsetup load "$name" "$name.table"
# using device name (since device path does not exists yes with udev)
dmsetup resume "$name"
done
finish_udev_transaction
}
# Try to remove list of DM device from table
remove_dm_devs() {
local remove=( "$@" )
local held
local i
for i in {1..50}; do
held=()
for d in "${remove[@]}" ; do
dmsetup remove "$d" 2>/dev/null || {
dmsetup info -c "$d" 2>/dev/null && {
held+=( "$d" )
dmsetup status "$d"
}
}
done
test ${#held[@]} -eq 0 && return
remove=( "${held[@]}" )
done
die "Can't remove device(s) ${held[@]}"
}
# Throttle down performance of kcopyd when mirroring i.e. disk image
throttle_sys="/sys/module/dm_mirror/parameters/raid1_resync_throttle"
throttle_dm_mirror() {
test -e "$throttle_sys" || return
test -f THROTTLE || cat "$throttle_sys" > THROTTLE
echo ${1-1} > "$throttle_sys"
}
# Restore original kcopyd throttle value and have mirroring fast again
restore_dm_mirror() {
test ! -f THROTTLE || {
cat THROTTLE > "$throttle_sys"
rm -f THROTTLE
}
}
# Once there is $name.devtable
# this is a quick way to restore to this table entry
restore_from_devtable() {
local dev
local silent=""
if test "$1" = "--silent"; then
silent=1
shift
fi
rm -f debug.log strace.log
init_udev_transaction
for dev in "$@"; do
local name=${dev##*/}
dmsetup load "$name" "$name.devtable"
if not dmsetup resume "$name" ; then
dmsetup clear $name
dmsetup resume $name
finish_udev_transaction
echo "Device $name has unusable table \"$(cat $name.devtable)\""
return 1
fi
done
finish_udev_transaction
}
#
# Convert device to device with errors
# Takes the list of pairs of error segment from:len
# Combination with zero or delay is unsupported
# Original device table is replaced with multiple lines
# i.e. error_dev "$dev1" 8:32 96:8
error_dev() {
common_dev_ error "$@"
}
#
# Convert device to device with write errors but normal reads.
# For this 'delay' dev is used and reroutes 'reads' back to original device
# and for writes it will use extra new TEST-errordev (huge error target)
# i.e. writeerror_dev "$dev1" 8:32
writeerror_dev() {
local name=${PREFIX}-errordev
if test ! -e ERR_DEV; then
# delay target is used for error mapping
if test ! -f HAVE_DM_DELAY ; then
target_at_least dm-delay 1 1 0 || return 0
touch HAVE_DM_DELAY
fi
dmsetup create -u "TEST-$name" "$name" --table "0 4611686018427387904 error"
# Take major:minor of our error device
echo "$name" > ERR_DEV_NAME
dmsetup info -c --noheadings -o major,minor "$name" > ERR_DEV
fi
common_dev_ writeerror "$@"
}
#
# Convert device to device with sections of delayed zero read and writes.
# For this 'delay' dev will use extra new TEST-zerodev (huge zero target)
# and reroutes reads and writes
# i.e. delayzero_dev "$dev1" 8:32
delayzero_dev() {
local name=${PREFIX}-zerodev
if test ! -e ZERO_DEV; then
# delay target is used for error mapping
if test ! -f HAVE_DM_DELAY ; then
target_at_least dm-delay 1 1 0 || return 0
touch HAVE_DM_DELAY
fi
dmsetup create -u "TEST-$name" "$name" --table "0 4611686018427387904 zero"
# Take major:minor of our error device
echo "$name" > ZERO_DEV_NAME
dmsetup info -c --noheadings -o major,minor "$name" > ZERO_DEV
fi
common_dev_ delayzero "$@"
}
#
# Convert existing device to a device with zero segments
# Takes the list of pairs of zero segment from:len
# Combination with error or delay is unsupported
# Original device table is replaced with multiple lines
# i.e. zero_dev "$dev1" 8:32 96:8
zero_dev() {
common_dev_ zero "$@"
}
backup_dev() {
local dev
for dev in "$@"; do
dd if="$dev" of="${dev}.backup" bs=1024
done
}
restore_dev() {
local dev
for dev in "$@"; do
test -e "${dev}.backup" || \
die "Internal error: $dev not backed up, can't restore!"
dd of="$dev" if="${dev}.backup" bs=1024
done
}
prepare_pvs() {
prepare_devs "$@"
pvcreate -ff "${DEVICES[@]}"
}
prepare_vg() {
teardown_devs
prepare_devs "$@"
vgcreate $SHARED -s 512K "$vg" "${DEVICES[@]}"
}
extend_filter() {
local filter
filter=$(grep ^devices/global_filter CONFIG_VALUES | tail -n 1)
for rx in "$@"; do
filter=$(echo "$filter" | sed -e "s:\\[:[ \"$rx\", :")
done
lvmconf "$filter" "devices/scan_lvs = 1"
}
extend_filter_md() {
local filter
filter=$(grep ^devices/global_filter CONFIG_VALUES | tail -n 1)
for rx in "$@"; do
filter=$(echo "$filter" | sed -e "s:\\[:[ \"$rx\", :")
done
lvmconf "$filter"
lvmconf "devices/scan = [ \"$DM_DEV_DIR\", \"/dev\" ]"
}
extend_filter_LVMTEST() {
extend_filter "a|$DM_DEV_DIR/$PREFIX|" "$@"
}
hide_dev() {
local filter
filter=$(grep ^devices/global_filter CONFIG_VALUES | tail -n 1)
for dev in "$@"; do
filter=$(echo "$filter" | sed -e "s:\\[:[ \"r|$dev|\", :")
done
lvmconf "$filter"
}
unhide_dev() {
local filter
filter=$(grep ^devices/global_filter CONFIG_VALUES | tail -n 1)
for dev in "$@"; do
filter=$(echo "$filter" | sed -e "s:\"r|$dev|\", ::")
done
lvmconf "$filter"
}
mkdev_md5sum() {
rm -f debug.log strace.log
mkfs.ext2 "$DM_DEV_DIR/$1/$2" || return 1
md5sum "$DM_DEV_DIR/$1/$2" > "md5.$1-$2"
}
generate_config() {
if test -n "$profile_name"; then
config_values="PROFILE_VALUES_$profile_name"
config="PROFILE_$profile_name"
touch "$config_values"
else
config_values=CONFIG_VALUES
config=CONFIG
fi
LVM_TEST_LOCKING=${LVM_TEST_LOCKING:-1}
LVM_TEST_LVMPOLLD=${LVM_TEST_LVMPOLLD:-0}
LVM_TEST_LVMLOCKD=${LVM_TEST_LVMLOCKD:-0}
LVM_TEST_DEVICES_FILE=${LVM_TEST_DEVICES_FILE:-0}
# FIXME:dct: This is harmful! Variables are unused here and are tested not being empty elsewhere:
#LVM_TEST_LOCK_TYPE_SANLOCK=${LVM_TEST_LOCK_TYPE_SANLOCK:-0}
#LVM_TEST_LOCK_TYPE_DLM=${LVM_TEST_LOCK_TYPE_DLM:-0}
if test "$DM_DEV_DIR" = "/dev"; then
LVM_VERIFY_UDEV=${LVM_VERIFY_UDEV:-0}
else
LVM_VERIFY_UDEV=${LVM_VERIFY_UDEV:-1}
fi
test -f "$config_values" || {
cat > "$config_values" <<-EOF
activation/checks = 1
activation/monitoring = 0
activation/polling_interval = 1
activation/retry_deactivation = 1
activation/snapshot_autoextend_percent = 50
activation/snapshot_autoextend_threshold = 50
activation/verify_udev_operations = $LVM_VERIFY_UDEV
activation/raid_region_size = 512
allocation/wipe_signatures_when_zeroing_new_lvs = 0
allocation/vdo_slab_size_mb = 128
allocation/zero_metadata = 0
backup/archive = 0
backup/backup = 0
devices/cache_dir = "$TESTDIR/etc"
devices/default_data_alignment = 1
devices/dir = "$DM_DEV_DIR"
devices/filter = "a|.*|"
devices/global_filter = [ "a|$DM_DEV_DIR/mapper/${PREFIX}.*pv[0-9_]*$|", "r|.*|" ]
devices/md_component_detection = 0
devices/scan = "$DM_DEV_DIR"
devices/sysfs_scan = 1
devices/write_cache_state = 0
devices/use_devicesfile = $LVM_TEST_DEVICES_FILE
global/abort_on_internal_errors = 1
global/cache_check_executable = "$LVM_TEST_CACHE_CHECK_CMD"
global/cache_dump_executable = "$LVM_TEST_CACHE_DUMP_CMD"
global/cache_repair_executable = "$LVM_TEST_CACHE_REPAIR_CMD"
global/detect_internal_vg_cache_corruption = 1
global/fallback_to_local_locking = 0
global/locking_type=$LVM_TEST_LOCKING
global/notify_dbus = 0
global/si_unit_consistency = 1
global/thin_check_executable = "$LVM_TEST_THIN_CHECK_CMD"
global/thin_dump_executable = "$LVM_TEST_THIN_DUMP_CMD"
global/thin_repair_executable = "$LVM_TEST_THIN_REPAIR_CMD"
global/use_lvmpolld = $LVM_TEST_LVMPOLLD
global/use_lvmlockd = $LVM_TEST_LVMLOCKD
log/activation = 1
log/file = "$TESTDIR/debug.log"
log/indent = 1
log/level = 9
log/overwrite = 1
log/syslog = 0
log/verbose = 0
EOF
# For 'rpm' builds use system installed binaries
# and libraries and locking dir and some more built-in
# defaults
# For test suite run use binaries from builddir.
test -z "${abs_top_builddir+varset}" || {
cat >> "$config_values" <<-EOF
dmeventd/executable = "$abs_top_builddir/test/lib/dmeventd"
activation/udev_rules = 1
activation/udev_sync = 1
global/fsadm_executable = "$abs_top_builddir/test/lib/fsadm"
global/library_dir = "$TESTDIR/lib"
global/locking_dir = "$TESTDIR/var/lock/lvm"
EOF
}
}
# append all parameters (avoid adding empty \n)
local v
test $# -gt 0 && printf "%s\\n" "$@" >> "$config_values"
declare -A CONF 2>/dev/null || {
# Associative arrays is not available
local s
for s in $(cut -f1 -d/ "$config_values" | sort | uniq); do
echo "$s {"
local k
for k in $(grep ^"$s"/ "$config_values" | cut -f1 -d= | sed -e 's, *$,,' | sort | uniq); do
grep "^${k}[ \t=]" "$config_values" | tail -n 1 | sed -e "s,^$s/, ," || true
done
echo "}"
echo
done | tee "$config" | sed -e "s,^,## LVMCONF: ,"
return 0
}
local sec
local last_sec=""
# read sequential list and put into associative array
while IFS= read -r v; do
CONF["${v%%[={ ]*}"]=${v#*/}
done < "$config_values"
# sort by section and iterate through them
printf "%s\\n" "${!CONF[@]}" | sort | while read -r v ; do
sec=${v%%/*} # split on section'/'param_name
test "$sec" = "$last_sec" || {
test -z "$last_sec" || echo "}"
echo "$sec {"
last_sec=$sec
}
echo " ${CONF[$v]}"
done > "$config"
echo "}" >> "$config"
sed -e "s,^,## LVMCONF: ," "$config"
}
lvmconf() {
local profile_name=""
test $# -eq 0 || {
# Compare if passed args aren't already all in generated lvm.conf
local needed=0
for i in "$@"; do
val=$(grep "${i%%[={ ]*}" CONFIG_VALUES 2>/dev/null | tail -1) || { needed=1; break; }
test "$val" = "$i" || { needed=1; break; }
done
test "$needed" -eq 0 && {
echo "## Skipping reconfiguring for: (" "$@" ")"
return 0 # not needed
}
}
generate_config "$@"
mv -f CONFIG "$LVM_SYSTEM_DIR/lvm.conf"
}
profileconf() {
local pdir="$LVM_SYSTEM_DIR/profile"
local profile_name=$1
shift
generate_config "$@"
mkdir -p "$pdir"
mv -f "PROFILE_$profile_name" "$pdir/$profile_name.profile"
}
prepare_profiles() {
local pdir="$LVM_SYSTEM_DIR/profile"
local profile_name
mkdir -p "$pdir"
for profile_name in "$@"; do
test -L "lib/$profile_name.profile" || skip
cp "lib/$profile_name.profile" "$pdir/$profile_name.profile"
done
}
unittest() {
test -x "$TESTOLDPWD/unit/unit-test" || skip
"$TESTOLDPWD/unit/unit-test" "${@}"
}
mirror_recovery_works() {
case "$(uname -r)" in
3.3.4-5.fc17.i686|3.3.4-5.fc17.x86_64) return 1 ;;
esac
}
raid456_replace_works() {
# The way kmem_cache aliasing is done in the kernel is broken.
# It causes RAID 4/5/6 tests to fail.
#
# The problem with kmem_cache* is this:
# *) Assume CONFIG_SLUB is set
# 1) kmem_cache_create(name="foo-a")
# - creates new kmem_cache structure
# 2) kmem_cache_create(name="foo-b")
# - If identical cache characteristics, it will be merged with the previously
# created cache associated with "foo-a". The cache's refcount will be
# incremented and an alias will be created via sysfs_slab_alias().
# 3) kmem_cache_destroy(<ptr>)
# - Attempting to destroy cache associated with "foo-a", but instead the
# refcount is simply decremented. I don't even think the sysfs aliases are
# ever removed...
# 4) kmem_cache_create(name="foo-a")
# - This FAILS because kmem_cache_sanity_check colides with the existing
# name ("foo-a") associated with the non-removed cache.
#
# This is a problem for RAID (specifically dm-raid) because the name used
# for the kmem_cache_create is ("raid%d-%p", level, mddev). If the cache
# persists for long enough, the memory address of an old mddev will be
# reused for a new mddev - causing an identical formulation of the cache
# name. Even though kmem_cache_destory had long ago been used to delete
# the old cache, the merging of caches has cause the name and cache of that
# old instance to be preserved and causes a colision (and thus failure) in
# kmem_cache_create(). I see this regularly in testing the following
# kernels:
#
# This seems to be finaly resolved with this patch:
# http://www.redhat.com/archives/dm-devel/2014-March/msg00008.html
# so we need to put here exlusion for kernes which do trace SLUB
#
case "$(uname -r)" in
3.6.*.fc18.i686*|3.6.*.fc18.x86_64) return 1 ;;
3.9.*.fc19.i686*|3.9.*.fc19.x86_64) return 1 ;;
3.1[0123].*.fc18.i686*|3.1[0123].*.fc18.x86_64) return 1 ;;
3.1[01234].*.fc19.i686*|3.1[01234].*.fc19.x86_64) return 1 ;;
3.1[123].*.fc20.i686*|3.1[123].*.fc20.x86_64) return 1 ;;
3.14.*.fc21.i686*|3.14.*.fc21.x86_64) return 1 ;;
3.15.*rc6*.fc21.i686*|3.15.*rc6*.fc21.x86_64) return 1 ;;
3.16.*rc4*.fc21.i686*|3.16.*rc4*.fc21.x86_64) return 1 ;;
esac
}
#
# Some 32bit kernel cannot pass some erroring magic which forces
# thin-pool to be falling into Error state.
#
# Skip test on such kernels (see: https://bugzilla.redhat.com/1310661)
#
thin_pool_error_works_32() {
case "$(uname -r)" in
2.6.32-618.*.i686) return 1 ;;
2.6.32-623.*.i686) return 1 ;;
2.6.32-573.1[28].1.el6.i686) return 1 ;;
esac
}
thin_restore_needs_more_volumes() {
case $("$LVM_TEST_THIN_RESTORE_CMD" -V) in
# With older version of thin-tool we got slightly more compact metadata
0.[0-6]*|0.7.0*) return 0 ;;
0.8.5-2.el7) return 0 ;;
esac
return 1
}
udev_wait() {
pgrep udev >/dev/null || return 0
which udevadm &>/dev/null || return 0
if test -n "${1-}" ; then
udevadm settle --exit-if-exists="$1" || true
else
udevadm settle --timeout=15 || true
fi
}
# wait_for_sync <VG/LV>
wait_for_sync() {
local i
for i in {1..100} ; do
check in_sync "$@" && return
sleep .2
done
echo "Sync is taking too long - assume stuck"
echo t >/proc/sysrq-trigger 2>/dev/null
return 1
}
# Check if tests are running on 64bit architecture
can_use_16T() {
test "$(getconf LONG_BIT)" -eq 64
}
# Check if major.minor.revision' string is 'at_least'
version_at_least() {
local major
local minor
local revision
IFS=".-" read -r major minor revision <<< "$1"
shift
test -n "${1:-}" || return 0
test -n "$major" || return 1
test "$major" -gt "$1" && return 0
test "$major" -eq "$1" || return 1
test -n "${2:-}" || return 0
test -n "$minor" || return 1
test "$minor" -gt "$2" && return 0
test "$minor" -eq "$2" || return 1
test -n "${3:-}" || return 0
test "$revision" -ge "$3" 2>/dev/null || return 1
}
#
# Check wheter kernel [dm module] target exist
# at least in expected version
#
# [dm-]target-name major minor revision
#
# i.e. dm_target_at_least dm-thin-pool 1 0
target_at_least() {
rm -f debug.log strace.log
case "$1" in
dm-vdo) modprobe "kvdo" || true ;;
dm-*) modprobe "$1" || true ;;
esac
if test "$1" = dm-raid; then
case "$(uname -r)" in
3.12.0*) return 1 ;;
esac
fi
local version
version=$(dmsetup targets 2>/dev/null | grep "^${1##dm-} " 2>/dev/null)
version=${version##* v}
version_at_least "$version" "${@:2}" || {
echo "Found $1 version $version, but requested ${*:2}." >&2
return 1
}
}
# Check whether the kernel driver version is greater or equal
# to the specified version. This can be used to skip tests on
# kernels where they are known to not be supported.
#
# e.g. driver_at_least 4 33
#
driver_at_least() {
local version
version=$(dmsetup version | tail -1 2>/dev/null)
version=${version##*:}
version_at_least "$version" "$@" || {
echo "Found driver version $version, but requested" "$@" "." >&2
return 1
}
}
have_thin() {
lvm segtypes 2>/dev/null | grep thin$ >/dev/null || {
echo "Thin is not built-in." >&2
return 1
}
target_at_least dm-thin-pool "$@"
declare -a CONF=()
# disable thin_check if not present in system
if test -n "$LVM_TEST_THIN_CHECK_CMD" && test ! -x "$LVM_TEST_THIN_CHECK_CMD"; then
CONF[0]="global/thin_check_executable = \"\""
fi
if test -n "$LVM_TEST_THIN_DUMP_CMD" && test ! -x "$LVM_TEST_THIN_DUMP_CMD"; then
CONF[1]="global/thin_dump_executable = \"\""
fi
if test -n "$LVM_TEST_THIN_REPAIR_CMD" && test ! -x "$LVM_TEST_THIN_REPAIR_CMD"; then
CONF[2]="global/thin_repair_executable = \"\""
fi
if test ${#CONF[@]} -ne 0 ; then
echo "TEST WARNING: Reconfiguring" "${CONF[@]}"
lvmconf "${CONF[@]}"
fi
}
have_vdo() {
lvm segtypes 2>/dev/null | grep 'vdo$' >/dev/null || {
echo "VDO is not built-in." >&2
return 1
}
target_at_least dm-vdo "$@"
}
have_writecache() {
lvm segtypes 2>/dev/null | grep 'writecache$' >/dev/null || {
echo "writecache is not built-in." >&2
return 1
}
target_at_least dm-writecache "$@"
}
have_integrity() {
lvm segtypes 2>/dev/null | grep 'integrity$' >/dev/null || {
echo "integrity is not built-in." >&2
return 1
}
target_at_least dm-integrity "$@"
}
have_raid() {
target_at_least dm-raid "$@"
# some kernels have broken mdraid bitmaps, don't use them!
# may oops kernel, we know for sure all FC24 are currently broken
# in general any 4.1, 4.2 is likely useless unless patched
case "$(uname -r)" in
4.[12].*fc24*) return 1 ;;
esac
}
have_raid4 () {
local r=0
have_raid 1 8 0 && r=1
have_raid 1 9 1 && r=0
return $r
}
have_cache() {
lvm segtypes 2>/dev/null | grep ' cache-pool$' >/dev/null || {
echo "Cache is not built-in." >&2
return 1
}
target_at_least dm-cache "$@"
declare -a CONF=()
# disable cache_check if not present in system
if test -n "$LVM_TEST_CACHE_CHECK_CMD" -a ! -x "$LVM_TEST_CACHE_CHECK_CMD" ; then
CONF[0]="global/cache_check_executable = \"\""
fi
if test -n "$LVM_TEST_CACHE_DUMP_CMD" -a ! -x "$LVM_TEST_CACHE_DUMP_CMD" ; then
CONF[1]="global/cache_dump_executable = \"\""
fi
if test -n "$LVM_TEST_CACHE_REPAIR_CMD" -a ! -x "$LVM_TEST_CACHE_REPAIR_CMD" ; then
CONF[2]="global/cache_repair_executable = \"\""
fi
if test ${#CONF[@]} -ne 0 ; then
echo "TEST WARNING: Reconfiguring" "${CONF[@]}"
lvmconf "${CONF[@]}"
fi
}
have_tool_at_least() {
local version
version=$("$1" -V 2>/dev/null)
version=${version%%-*}
shift
version_at_least "$version" "$@"
}
# check if lvm shell is build-in (needs readline)
have_readline() {
echo version | lvm &>/dev/null
}
have_multi_core() {
which nproc &>/dev/null || return 0
[ "$(nproc)" -ne 1 ]
}
dmsetup_wrapped() {
udev_wait
dmsetup "$@"
}
awk_parse_init_count_in_lvmpolld_dump() {
printf '%s' \
\
$'BEGINFILE { x=0; answ=0 }' \
$'{' \
$'if (/.*{$/) { x++ }' \
$'else if (/.*}$/) { x-- }' \
$'else if ( x == 2 && $1 ~ "[[:space:]]*"vkey) { value=substr($2, 2); value=substr(value, 1, length(value) - 1); }' \
$'if ( x == 2 && value == vvalue && $1 ~ /[[:space:]]*init_requests_count/) { answ=$2 }' \
$'if (answ > 0) { exit 0 }' \
$'}' \
$'END { printf "%d", answ }'
}
check_lvmpolld_init_rq_count() {
local ret
ret=$(awk -v vvalue="$2" -v vkey="${3:-lvname}" -F= "$(awk_parse_init_count_in_lvmpolld_dump)" lvmpolld_dump.txt)
test "$ret" -eq "$1" || {
die "check_lvmpolld_init_rq_count failed. Expected $1, got $ret"
}
}
wait_pvmove_lv_ready() {
# given sleep .1 this is about 60 secs of waiting
local retries=${2-300}
if [ -e LOCAL_LVMPOLLD ]; then
local lvid=""
while : ; do
test "$retries" -le 0 && die "Waiting for lvmpolld timed out"
test -n "$lvid" || {
# wait till wanted LV really appears
lvid=$(get lv_field "${1//-//}" vg_uuid,lv_uuid -a 2>/dev/null) && {
lvid=${lvid//\ /}
lvid=${lvid//-/}
}
}
test -z "$lvid" || {
lvmpolld_dump > lvmpolld_dump.txt
check_lvmpolld_init_rq_count 1 "$lvid" lvid && break;
}
sleep .1
retries=$((retries-1))
done
else
while : ; do
test "$retries" -le 0 && die "Waiting for pvmove LV to get activated has timed out"
dmsetup info -c -o tables_loaded "$1" >out 2>/dev/null|| true;
not grep Live out >/dev/null || break
sleep .1
retries=$((retries-1))
done
fi
# Adding settle here, to avoid remove, before processing of 'add' is finished
# (masking systemd-udevd issue)
udevadm settle --timeout=2 || true
}
# Holds device open with sleep which automatically expires after given timeout
# Prints PID of running holding sleep process in background
hold_device_open() {
local vgname=$1
local lvname=$2
local sec=${3-20} # default 20sec
sleep "$sec" < "$DM_DEV_DIR/$vgname/$lvname" >/dev/null 2>&1 &
SLEEP_PID=$!
# wait till device is openned
for i in $(seq 1 50) ; do
if test "$(dmsetup info --noheadings -c -o open "$vgname"-"$lvname")" -ne 0 ; then
echo "$SLEEP_PID"
return
fi
sleep .1
done
die "$vgname-$lvname expected to be openned, but it's not!"
}
# return total memory size in kB units
total_mem() {
local a
local b
while IFS=":" read -r a b ; do
case "$a" in MemTotal*) echo "${b%% kB}" ; break ;; esac
done < /proc/meminfo
}
kernel_at_least() {
version_at_least "$(uname -r)" "$@"
}
test "${LVM_TEST_AUX_TRACE-0}" = "0" || set -x
test -f DEVICES && devs=$(< DEVICES)
if test "$1" = "dmsetup" ; then
shift
dmsetup_wrapped "$@"
else
"$@"
fi
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