X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Ftests%2Freplay-ost-single.sh;h=9764e6bd4073b7e82e2c71570848dfd5a3d72514;hp=bda77dfff0ec46ffb5973fce331a47653e768abf;hb=dc52a88cde1e7cea093b25fc9a15509fe0ac527a;hpb=191061ee668400324f4505cf498f1ee2d57e4962

diff --git a/lustre/tests/replay-ost-single.sh b/lustre/tests/replay-ost-single.sh
index bda77df..9764e6b 100755
--- a/lustre/tests/replay-ost-single.sh
+++ b/lustre/tests/replay-ost-single.sh
@@ -1,205 +1,487 @@
-#!/bin/sh
+#!/bin/bash
 
 set -e
 
-LUSTRE=${LUSTRE:-`dirname $0`/..}
+LUSTRE=${LUSTRE:-$(cd $(dirname $0)/..; echo $PWD)}
+SETUP=${SETUP:-""}
+CLEANUP=${CLEANUP:-""}
 . $LUSTRE/tests/test-framework.sh
-
 init_test_env $@
+. ${CONFIG:=$LUSTRE/tests/cfg/$NAME.sh}
+init_logging
 
-. ${CONFIG:=$LUSTRE/tests/cfg/lmv.sh}
-
-ostfailover_HOST=${ostfailover_HOST:-$ost_HOST}
-
-# Skip these tests
-ALWAYS_EXCEPT="5"
-# test 5 needs a larger fs than what local normally has
-
-gen_config() {
-    rm -f $XMLCONFIG
-    if [ "$MDSCOUNT" -gt 1 ]; then
-        add_lmv lmv1_svc
-        for mds in `mds_list`; do
-            MDSDEV=$TMP/${mds}-`hostname`
-            add_mds $mds --dev $MDSDEV --size $MDSSIZE  --lmv lmv1_svc
-        done
-        add_lov_to_lmv lov1 lmv1_svc --stripe_sz $STRIPE_BYTES \
-	    --stripe_cnt $STRIPES_PER_OBJ --stripe_pattern 0
-	MDS=lmv1
-    else
-        add_mds mds1 --dev $MDSDEV --size $MDSSIZE
-        add_lov lov1 mds1 --stripe_sz $STRIPE_BYTES \
-	    --stripe_cnt $STRIPES_PER_OBJ --stripe_pattern 0
-	MDS=mds1_svc
+# While we do not use OSTCOUNT=1 setup anymore,
+# ost1failover_HOST is used
+#ostfailover_HOST=${ostfailover_HOST:-$ost_HOST}
+#failover= must be defined in OST_MKFS_OPTIONS if ostfailover_HOST != ost_HOST
 
-    fi
+require_dsh_ost || exit 0
 
-    add_ost ost --lov lov1 --dev $OSTDEV --size $OSTSIZE --failover
-    if [ ! -z "$ostfailover_HOST" ]; then
-	 add_ostfailover ost --dev $OSTDEV --size $OSTSIZE
-    fi
-    add_client client $MDS --lov lov1 --path $MOUNT
-}
+# bug number for skipped test:
+ALWAYS_EXCEPT="$REPLAY_OST_SINGLE_EXCEPT"
+# UPDATE THE COMMENT ABOVE WITH BUG NUMBERS WHEN CHANGING ALWAYS_EXCEPT!
 
-cleanup() {
-    # make sure we are using the primary MDS, so the config log will
-    # be able to clean up properly.
-    activeost=`facet_active ost`
-    if [ $activeost != "ost" ]; then
-        fail ost
-    fi
-    zconf_umount `hostname` $MOUNT
-    for mds in `mds_list`; do
-	stop $mds ${FORCE} $MDSLCONFARGS
-    done
-    stop ost ${FORCE} --dump cleanup.log
-}
+# bug number for SLOW test:
+# time in minutes:                 40"
+[ "$SLOW" = "no" ] && EXCEPT_SLOW="5"
 
-if [ "$ONLY" == "cleanup" ]; then
-    sysctl -w portals.debug=0
-    cleanup
-    exit
+if [ $(facet_fstype $SINGLEMDS) = "zfs" ]; then
+# bug number for slow tests:                 LU-2887
+# time in minutes:                           32  12.5"
+	[ "$SLOW" = "no" ] && EXCEPT_SLOW+=" 8a  8b"
+	if [ $MDSCOUNT -gt 1 ]; then
+# bug number for skipped test:
+		ALWAYS_EXCEPT+=""
+	fi
 fi
 
 build_test_filter
 
-SETUP=${SETUP:-"setup"}
-CLEANUP=${CLEANUP:-"cleanup"}
+check_and_setup_lustre
+assert_DIR
+rm -rf $DIR/[df][0-9]*
 
-setup() {
-    gen_config
+TDIR=$DIR/d0.${TESTSUITE}
+mkdir -p $TDIR
+$LFS setstripe $TDIR -i 0 -c 1
+$LFS getstripe $TDIR
 
-    start ost --reformat $OSTLCONFARGS
-    [ "$DAEMONFILE" ] && $LCTL debug_daemon start $DAEMONFILE $DAEMONSIZE
-    for mds in `mds_list`; do
-	start $mds --reformat $MDSLCONFARGS
-    done
-    grep " $MOUNT " /proc/mounts || zconf_mount `hostname` $MOUNT
+test_0a() {
+	zconf_umount $(hostname) $MOUNT -f
+	# needs to run during initial client->OST connection
+	#define OBD_FAIL_OST_ALL_REPLY_NET       0x211
+	do_facet ost1 "lctl set_param fail_loc=0x80000211"
+	zconf_mount $(hostname) $MOUNT && $LFS df $MOUNT || error "mount fail"
 }
+run_test 0a "target handle mismatch (bug 5317)"
 
-mkdir -p $DIR
-
-$SETUP
-
-test_0() {
-    fail ost
-    cp /etc/profile  $DIR/$tfile
-    sync
-    diff /etc/profile $DIR/$tfile
-    rm -f $DIR/$tfile
+test_0b() {
+	fail ost1
+	cp /etc/profile  $TDIR/$tfile
+	sync
+	diff /etc/profile $TDIR/$tfile
+	rm -f $TDIR/$tfile
 }
-run_test 0 "empty replay"
+run_test 0b "empty replay"
 
 test_1() {
-    date > $DIR/$tfile
-    fail ost
-    $CHECKSTAT -t file $DIR/$tfile || return 1
-    rm -f $DIR/$tfile
+	date > $TDIR/$tfile || error "error creating $TDIR/$tfile"
+	fail ost1
+	$CHECKSTAT -t file $TDIR/$tfile || error "check for file failed"
+	rm -f $TDIR/$tfile
 }
 run_test 1 "touch"
 
 test_2() {
-    for i in `seq 10`; do
-        echo "tag-$i" > $DIR/$tfile-$i
-    done 
-    fail ost
-    for i in `seq 10`; do
-      grep -q "tag-$i" $DIR/$tfile-$i || error "f2-$i"
-    done 
-    rm -f $DIR/$tfile-*
+	for i in $(seq 10); do
+		echo "tag-$i" > $TDIR/$tfile-$i ||
+			error "create $TDIR/$tfile-$i failed"
+	done
+	fail ost1
+	for i in $(seq 10); do
+		grep -q "tag-$i" $TDIR/$tfile-$i ||
+			error "grep $TDIR/$tfile-$i failed"
+	done
+	rm -f $TDIR/$tfile-*
 }
 run_test 2 "|x| 10 open(O_CREAT)s"
 
 test_3() {
-    verify=$ROOT/tmp/verify-$$
-    dd if=/dev/urandom bs=4096 count=1280 | tee $verify > $DIR/$tfile &
-    ddpid=$!
-    sync &
-    fail ost
-    wait $ddpid || return 1
-    cmp $verify $DIR/$tfile || return 2
-    rm -f $verify $DIR/$tfile
+	verify=$ROOT/tmp/verify-$$
+	dd if=/dev/urandom bs=4096 count=1280 | tee $verify > $TDIR/$tfile &
+	ddpid=$!
+	sync &
+	fail ost1
+	wait $ddpid || error "wait for dd failed"
+	cmp $verify $TDIR/$tfile || error "compare $verify $TDIR/$tfile failed"
+	rm -f $verify $TDIR/$tfile
 }
 run_test 3 "Fail OST during write, with verification"
 
 test_4() {
-    verify=$ROOT/tmp/verify-$$
-    dd if=/dev/urandom bs=4096 count=1280 | tee $verify > $DIR/$tfile
-    # invalidate cache, so that we're reading over the wire
-    for i in /proc/fs/lustre/ldlm/namespaces/OSC_*MNT*; do
-        echo -n clear > $i/lru_size
-    done
-    cmp $verify $DIR/$tfile &
-    cmppid=$!
-    fail ost
-    wait $cmppid || return 1
-    rm -f $verify $DIR/$tfile
+	verify=$ROOT/tmp/verify-$$
+	dd if=/dev/urandom bs=4096 count=1280 | tee $verify > $TDIR/$tfile
+	# invalidate cache, so that we're reading over the wire
+	cancel_lru_locks osc
+	cmp $verify $TDIR/$tfile &
+	cmppid=$!
+	fail ost1
+	wait $cmppid || error "wait on cmp failed"
+	rm -f $verify $TDIR/$tfile
 }
 run_test 4 "Fail OST during read, with verification"
 
+iozone_bg () {
+    local args=$@
+
+    local tmppipe=$TMP/${TESTSUITE}.${TESTNAME}.pipe
+    mkfifo $tmppipe
+
+    echo "+ iozone $args"
+    iozone $args > $tmppipe &
+
+    local pid=$!
+
+    echo "tmppipe=$tmppipe"
+    echo iozone pid=$pid
+
+    # iozone exit code is 0 even if iozone is not completed
+    # need to check iozone output  on "complete"
+    local iozonelog=$TMP/${TESTSUITE}.iozone.log
+    rm -f $iozonelog
+    cat $tmppipe | while read line ; do
+        echo "$line"
+        echo "$line" >>$iozonelog
+    done;
+
+    local rc=0
+    wait $pid
+    rc=$?
+    if ! $(tail -1 $iozonelog | grep -q complete); then
+        echo iozone failed!
+        rc=1
+    fi
+    rm -f $tmppipe
+    rm -f $iozonelog
+    return $rc
+}
+
 test_5() {
-    IOZONE_OPTS="-i 0 -i 1 -i 2 -+d -r 64 -s 1g"
-    iozone $IOZONE_OPTS -f $DIR/$tfile &
-    PID=$!
-    
-    sleep 10
-    fail ost
-    wait $PID || return 1
-    rm -f $DIR/$tfile
+	if [ -z "$(which iozone 2> /dev/null)" ]; then
+		skip_env "iozone missing"
+		return 0
+	fi
+
+	# striping is -c 1, get min of available
+	local minavail=$(lctl get_param -n osc.*[oO][sS][cC][-_]*.kbytesavail |
+		sort -n | head -n1)
+	local size=$(( minavail * 3/4 ))
+	local GB=1048576  # 1048576KB == 1GB
+
+	if (( size > GB )); then
+		size=$GB
+	fi
+	# no random I/O (-i 2) as it's very slow with ZFS
+	local iozone_opts="-i 0 -i 1 -+d -r 4 -s $size -f $TDIR/$tfile"
+
+	iozone_bg $iozone_opts &
+	local pid=$!
+
+	echo iozone bg pid=$pid
+
+	sleep 8
+	fail ost1
+	local rc=0
+	wait $pid || error "wait on iozone failed"
+	rc=$?
+	log "iozone rc=$rc"
+	rm -f $TDIR/$tfile
+	wait_delete_completed_mds
+	[ $rc -eq 0 ] || error "iozone failed"
+	return $rc
 }
 run_test 5 "Fail OST during iozone"
 
 kbytesfree() {
-   awk '{total+=$1} END {print total}' /proc/fs/lustre/osc/OSC_*MNT*/kbytesfree
+   calc_osc_kbytes kbytesfree
 }
 
 test_6() {
-    f=$DIR/$tfile
-    rm -f $f
-    sync && sleep 2 && sync	# wait for delete thread
-    before=`kbytesfree`
-    dd if=/dev/urandom bs=4096 count=1280 of=$f
-#define OBD_FAIL_MDS_REINT_NET_REP       0x119
-    do_facet mds "sysctl -w lustre.fail_loc=0x80000119"
-    sync
-    sleep 1					# ensure we have a fresh statfs
-    after_dd=`kbytesfree`
-    log "before: $before after_dd: $after_dd"
-    (( $before > $after_dd )) || return 1
-    rm -f $f
-    fail ost
-    $CHECKSTAT -t file $f && return 2 || true
-    sync
-    # let the delete happen
-    sleep 2
-    after=`kbytesfree`
-    log "before: $before after: $after"
-    (( $before <= $after + 40 )) || return 3	# take OST logs into account
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return 0
+
+	local f=$TDIR/$tfile
+	sync && sleep 5 && sync  # wait for delete thread
+
+	# wait till space is returned, following
+	# (( $before > $after_dd)) test counting on that
+	wait_mds_ost_sync || error "first wait_mds_ost_sync failed"
+	wait_destroy_complete || error "first wait_destroy_complete failed"
+
+	local before=$(kbytesfree)
+	dd if=/dev/urandom bs=4096 count=1280 of=$f || error "dd failed"
+	$LFS getstripe $f || error "$LFS getstripe $f failed"
+	local stripe_index=$(lfs getstripe -i $f)
+
+	sync
+	sleep 2 # ensure we have a fresh statfs
+	sync
+
+	#define OBD_FAIL_MDS_REINT_NET_REP       0x119
+	do_facet $SINGLEMDS "lctl set_param fail_loc=0x80000119"
+
+	# retry till statfs returns useful results
+	local after_dd=$(kbytesfree)
+	local i=0
+	while (( $before <= $after_dd && $i < 20 )); do
+		sync
+		sleep 1
+		let ++i
+		after_dd=$(kbytesfree)
+	done
+
+	log "before: $before after_dd: $after_dd took $i seconds"
+	(( $before > $after_dd )) ||
+		error "space grew after dd: before:$before after_dd:$after_dd"
+	rm -f $f
+	fail ost$((stripe_index + 1))
+	wait_recovery_complete ost$((stripe_index + 1)) ||
+		error "OST$((stripe_index + 1)) recovery not completed"
+	$CHECKSTAT -t file $f && return 2 || true
+	sync
+	# let the delete happen
+	wait_mds_ost_sync || error "second wait_mds_ost_sync failed"
+	wait_delete_completed || error "second wait_delete_completed failed"
+	local after=$(kbytesfree)
+	log "before: $before after: $after"
+	(( $before <= $after + $(fs_log_size) )) ||
+		error "$before > $after + logsize $(fs_log_size)"
 }
 run_test 6 "Fail OST before obd_destroy"
 
 test_7() {
-    f=$DIR/$tfile
-    rm -f $f
-    sync && sleep 2 && sync	# wait for delete thread
-    before=`kbytesfree`
-    dd if=/dev/urandom bs=4096 count=1280 of=$f
-    sync
-    after_dd=`kbytesfree`
-    log "before: $before after_dd: $after_dd"
-    (( $before > $after_dd )) || return 1
-    replay_barrier ost
-    rm -f $f
-    fail ost
-    $CHECKSTAT -t file $f && return 2 || true
-    sync
-    # let the delete happen
-    sleep 2
-    after=`kbytesfree`
-    log "before: $before after: $after"
-    (( $before <= $after + 40 )) || return 3	# take OST logs into account
+	local f=$TDIR/$tfile
+	sync && sleep 5 && sync	# wait for delete thread
+
+	# wait till space is returned, following
+	# (( $before > $after_dd)) test counting on that
+	wait_mds_ost_sync || error "wait_mds_ost_sync failed"
+	wait_destroy_complete || error "wait_destroy_complete failed"
+
+	local before=$(kbytesfree)
+	dd if=/dev/urandom bs=4096 count=1280 of=$f ||
+		error "dd to file failed: $?"
+
+	sync
+	local after_dd=$(kbytesfree)
+	local i=0
+	while (( $before <= $after_dd && $i < 10 )); do
+		sync
+		sleep 1
+		let ++i
+		after_dd=$(kbytesfree)
+	done
+
+	log "before: $before after_dd: $after_dd took $i seconds"
+	(( $before > $after_dd )) ||
+		error "space grew after dd: before:$before after_dd:$after_dd"
+	replay_barrier ost1
+	rm -f $f
+	fail ost1
+	wait_recovery_complete ost1 || error "OST recovery not done"
+	$CHECKSTAT -t file $f && return 2 || true
+	sync
+	# let the delete happen
+	wait_mds_ost_sync || error "wait_mds_ost_sync failed"
+	wait_delete_completed || error "wait_delete_completed failed"
+	local after=$(kbytesfree)
+	log "before: $before after: $after"
+	(( $before <= $after + $(fs_log_size) )) ||
+		 error "$before > $after + logsize $(fs_log_size)"
 }
 run_test 7 "Fail OST before obd_destroy"
 
-equals_msg test complete, cleaning up
-$CLEANUP
+test_8a() {
+	[[ $(lustre_version_code $SINGLEMDS) -ge $(version_code 2.3.0) ]] ||
+		{ skip "Need MDS version at least 2.3.0"; return; }
+	verify=$ROOT/tmp/verify-$$
+	dd if=/dev/urandom of=$verify bs=4096 count=1280 ||
+		error "Create verify file failed"
+	#define OBD_FAIL_OST_DQACQ_NET 0x230
+	do_facet ost1 "lctl set_param fail_loc=0x230"
+	dd if=$verify of=$TDIR/$tfile bs=4096 count=1280 oflag=sync &
+	ddpid=$!
+	sleep $TIMEOUT  # wait for the io to become redo io
+	if ! ps -p $ddpid  > /dev/null 2>&1; then
+		error "redo io finished incorrectly"
+	fi
+	do_facet ost1 "lctl set_param fail_loc=0"
+	wait $ddpid || true
+	cancel_lru_locks osc
+	cmp $verify $TDIR/$tfile || error "compare $verify $TDIR/$tfile failed"
+	rm -f $verify $TDIR/$tfile
+	message=$(dmesg | grep "redo for recoverable error -115")
+	[ -z "$message" ] || error "redo error messages found in dmesg"
+}
+run_test 8a "Verify redo io: redo io when get -EINPROGRESS error"
+
+test_8b() {
+	[[ $(lustre_version_code $SINGLEMDS) -ge $(version_code 2.3.0) ]] ||
+		{ skip "Need MDS version at least 2.3.0"; return; }
+	verify=$ROOT/tmp/verify-$$
+	dd if=/dev/urandom of=$verify bs=4096 count=1280 ||
+		error "Create verify file failed"
+	#define OBD_FAIL_OST_DQACQ_NET 0x230
+	do_facet ost1 "lctl set_param fail_loc=0x230"
+	dd if=$verify of=$TDIR/$tfile bs=4096 count=1280 oflag=sync &
+	ddpid=$!
+	sleep $TIMEOUT  # wait for the io to become redo io
+	fail ost1
+	do_facet ost1 "lctl set_param fail_loc=0"
+	wait $ddpid || error "dd did not complete"
+	cancel_lru_locks osc
+	cmp $verify $TDIR/$tfile || error "compare $verify $TDIR/$tfile failed"
+	rm -f $verify $TDIR/$tfile
+}
+run_test 8b "Verify redo io: redo io should success after recovery"
+
+test_8c() {
+	[[ $(lustre_version_code $SINGLEMDS) -ge $(version_code 2.3.0) ]] ||
+		{ skip "Need MDS version at least 2.3.0"; return; }
+	verify=$ROOT/tmp/verify-$$
+	dd if=/dev/urandom of=$verify bs=4096 count=1280 ||
+		error "Create verify file failed"
+	#define OBD_FAIL_OST_DQACQ_NET 0x230
+	do_facet ost1 "lctl set_param fail_loc=0x230"
+	dd if=$verify of=$TDIR/$tfile bs=4096 count=1280 oflag=sync &
+	ddpid=$!
+	sleep $TIMEOUT  # wait for the io to become redo io
+	ost_evict_client
+	# allow recovery to complete
+	sleep $((TIMEOUT + 2))
+	do_facet ost1 "lctl set_param fail_loc=0"
+	wait $ddpid
+	cancel_lru_locks osc
+	cmp $verify $TDIR/$tfile && error "compare files should fail"
+	rm -f $verify $TDIR/$tfile
+}
+run_test 8c "Verify redo io: redo io should fail after eviction"
+
+test_8d() {
+	[[ $(lustre_version_code $SINGLEMDS) -ge $(version_code 2.3.0) ]] ||
+		{ skip "Need MDS version at least 2.3.0"; return; }
+	#define OBD_FAIL_MDS_DQACQ_NET 0x187
+	do_facet $SINGLEMDS "lctl set_param fail_loc=0x187"
+	# test the non-intent create path
+	mcreate $TDIR/$tfile &
+	cpid=$!
+	sleep $TIMEOUT
+	if ! ps -p $cpid  > /dev/null 2>&1; then
+		error "mknod finished incorrectly"
+	fi
+	do_facet $SINGLEMDS "lctl set_param fail_loc=0"
+	wait $cpid || error "mcreate did not complete"
+	stat $TDIR/$tfile || error "mknod failed"
+
+	rm $TDIR/$tfile
+
+	#define OBD_FAIL_MDS_DQACQ_NET 0x187
+	do_facet $SINGLEMDS "lctl set_param fail_loc=0x187"
+	# test the intent create path
+	openfile -f O_RDWR:O_CREAT $TDIR/$tfile &
+	cpid=$!
+	sleep $TIMEOUT
+	if ! ps -p $cpid > /dev/null 2>&1; then
+		error "open finished incorrectly"
+	fi
+	do_facet $SINGLEMDS "lctl set_param fail_loc=0"
+	wait $cpid || error "openfile failed"
+	stat $TDIR/$tfile || error "open failed"
+}
+run_test 8d "Verify redo creation on -EINPROGRESS"
+
+test_8e() {
+	[[ $(lustre_version_code $SINGLEMDS) -ge $(version_code 2.3.0) ]] ||
+		{ skip "Need MDS version at least 2.3.0"; return; }
+	sleep 1 # ensure we have a fresh statfs
+	#define OBD_FAIL_OST_STATFS_EINPROGRESS 0x231
+	do_facet ost1 "lctl set_param fail_loc=0x231"
+	$LFS df $MOUNT &
+	dfpid=$!
+	sleep $TIMEOUT
+	if ! ps -p $dfpid  > /dev/null 2>&1; then
+		do_facet ost1 "lctl set_param fail_loc=0"
+		error "df shouldn't have completed!"
+	fi
+}
+run_test 8e "Verify that ptlrpc resends request on -EINPROGRESS"
+
+test_9() {
+	[ $(lustre_version_code ost1) -ge $(version_code 2.6.54) ] ||
+		{ skip "Need OST version at least 2.6.54"; return; }
+	$LFS setstripe -i 0 -c 1 $DIR/$tfile || error "setstripe failed"
+
+	# LU-1573 - Add duplicate write to generate grants
+	dd if=/dev/zero of=$DIR/$tfile count=1 bs=1M > /dev/null ||
+		error "First write failed"
+	replay_barrier ost1
+	# do IO
+	dd if=/dev/zero of=$DIR/$tfile count=1 bs=1M > /dev/null ||
+		error "failed to write"
+	# failover, replay and resend replayed waiting request
+	#define OBD_FAIL_TGT_REPLAY_DELAY2       0x714
+	do_facet ost1 $LCTL set_param fail_loc=0x00000714
+	do_facet ost1 $LCTL set_param fail_val=$TIMEOUT
+	fail ost1
+	do_facet ost1 $LCTL set_param fail_loc=0
+	do_facet ost1 "dmesg | tail -n 100" |
+		sed -n '/no req deadline/,$ p' | grep -q 'Already past' &&
+		return 1
+	return 0
+}
+run_test 9 "Verify that no req deadline happened during recovery"
+
+test_10() {
+	rm -f $TDIR/$tfile
+
+	dd if=/dev/zero of=$TDIR/$tfile count=10 || error "dd failed"
+
+	#define OBD_FAIL_OSC_DELAY_IO            0x414
+	$LCTL set_param fail_val=60 fail_loc=0x414
+	cancel_lru_locks OST0000-osc &
+	sleep 2
+	facet_failover ost1 || error "failover: $?"
+
+	#define OBD_FAIL_LDLM_GRANT_CHECK        0x32a
+	$LCTL set_param fail_loc=0x32a
+	stat $TDIR/$tfile
+
+	wait
+}
+run_test 10 "conflicting PW & PR locks on a client"
+
+test_12() {
+	[ $FAILURE_MODE != "HARD" ] &&
+		skip "Test needs FAILURE_MODE HARD" && return 0
+	remote_ost || { skip "need remote OST" && return 0; }
+
+	local tmp=$TMP/$tdir
+	local dir=$DIR/$tdir
+	declare -a pids
+
+
+	mkdir -p $tmp || error "can't create $tmp"
+	mkdir -p $dir || error "can't create $dir"
+
+	$LFS setstripe -c 1 -i 0 $dir
+
+	for i in `seq 1 10`; do mkdir $dir/d$i; done
+
+	#define OBD_FAIL_OST_DELAY_TRANS        0x245
+	do_facet ost1 "$LCTL set_param fail_loc=0x245" ||
+		error "can't set fail_loc"
+
+	for i in `seq 1 10`;
+	do
+		createmany -o $dir/d$i/$(openssl rand -base64 12) 500 &
+		pids+=($!)
+	done
+	echo "Waiting createmany pids"
+	wait ${pids[@]}
+
+	ls -lR $dir > $tmp/ls_r_out 2>&1&
+	local ls_pid=$!
+
+	facet_failover ost1
+
+	echo "starting wait for ls -l"
+	wait $ls_pid
+	grep "?\|No such file or directory" $tmp/ls_r_out &&
+		error "Found file without object on OST"
+	rm -rf $tmp
+	rm -rf $dir
+}
+run_test 12 "check stat after OST failover"
+
+complete $SECONDS
+check_and_cleanup_lustre
+exit_status