X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Ftests%2Fsanity.sh;h=320c39a8214fba3a5ba7aa48aa3c6abf1c93f40d;hp=08ee3e298f7b4ef22b6d8c5787eb1dce8823333f;hb=a2d5b2e83c0a512a3ea59698e8481621ab5856c2;hpb=047dfe489966c8816cbead1a3abbbb1564fdb7db

diff --git a/lustre/tests/sanity.sh b/lustre/tests/sanity.sh
old mode 100644
new mode 100755
index 08ee3e2..320c39a
--- a/lustre/tests/sanity.sh
+++ b/lustre/tests/sanity.sh
@@ -79,10 +79,10 @@ init_logging
 [ "$SLOW" = "no" ] && EXCEPT_SLOW="24D 27m 64b 68 71 115 300o"
 
 if [ $(facet_fstype $SINGLEMDS) = "zfs" ]; then
-	# bug number for skipped test: LU-4536 LU-1957 LU-2805
-	ALWAYS_EXCEPT="$ALWAYS_EXCEPT  65ic    180     184c"
-	#                                               4   13    (min)"
-	[ "$SLOW" = "no" ] && EXCEPT_SLOW="$EXCEPT_SLOW 51b 51ba"
+	# bug number for skipped test: LU-4536 LU-1957
+	ALWAYS_EXCEPT="$ALWAYS_EXCEPT  65ic    180"
+	#                                               13    (min)"
+	[ "$SLOW" = "no" ] && EXCEPT_SLOW="$EXCEPT_SLOW 51b"
 fi
 
 FAIL_ON_ERROR=false
@@ -1017,7 +1017,9 @@ test_24u() { # bug12192
 run_test 24u "create stripe file"
 
 page_size() {
-	getconf PAGE_SIZE
+	local size
+	size=$(getconf PAGE_SIZE 2>/dev/null)
+	echo -n ${size:-4096}
 }
 
 simple_cleanup_common() {
@@ -2022,6 +2024,7 @@ run_test 27C "check full striping across all OSTs"
 test_27D() {
 	[ $OSTCOUNT -lt 2 ] && skip "needs >= 2 OSTs" && return
 	[ -n "$FILESET" ] && skip "SKIP due to FILESET set" && return
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	local POOL=${POOL:-testpool}
 	local first_ost=0
 	local last_ost=$(($OSTCOUNT - 1))
@@ -2032,8 +2035,13 @@ test_27D() {
 	test_mkdir -p $DIR/$tdir
 	pool_add $POOL || error "pool_add failed"
 	pool_add_targets $POOL $ost_range || error "pool_add_targets failed"
-	llapi_layout_test -d$DIR/$tdir -p$POOL -o$OSTCOUNT ||
+
+	local skip27D
+	[ $(lustre_version_code $SINGLEMDS) -lt $(version_code 2.7.64) ] &&
+		skip27D = "-s 29"
+	llapi_layout_test -d$DIR/$tdir -p$POOL -o$OSTCOUNT $skip27D ||
 		error "llapi_layout_test failed"
+
 	cleanup_pools || error "cleanup_pools failed"
 }
 run_test 27D "validate llapi_layout API"
@@ -2119,7 +2127,8 @@ run_test 28 "create/mknod/mkdir with bad file types ============"
 
 test_29() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return 0
-	cancel_lru_locks mdc
+	sync; sleep 1; sync # flush out any dirty pages from previous tests
+	cancel_lru_locks
 	test_mkdir $DIR/d29
 	touch $DIR/d29/foo
 	log 'first d29'
@@ -2400,8 +2409,13 @@ test_31p() {
 run_test 31p "remove of open striped directory"
 
 cleanup_test32_mount() {
+	local rc=0
 	trap 0
-	$UMOUNT $DIR/$tdir/ext2-mountpoint
+	local loopdev=$(losetup -a | grep $EXT2_DEV | sed -ne 's/:.*$/p')
+	$UMOUNT $DIR/$tdir/ext2-mountpoint || rc=$?
+	losetup -d $loopdev || true
+	rm -rf $DIR/$tdir/ext2-mountpoint
+	return $rc
 }
 
 test_32a() {
@@ -2607,8 +2621,13 @@ test_32p() {
 run_test 32p "open d32p/symlink->tmp/symlink->lustre-root/$tfile"
 
 cleanup_testdir_mount() {
+	local rc=0
 	trap 0
-	$UMOUNT $DIR/$tdir
+	local loopdev=$(losetup -a | grep $EXT2_DEV | sed -ne 's/:.*$/p')
+	$UMOUNT $DIR/$tdir || rc=$?
+	losetup -d $loopdev || true
+	rm -rf $DIR/$tdir
+	return $rc
 }
 
 test_32q() {
@@ -2808,6 +2827,7 @@ cleanup_33f() {
 
 test_33f() {
 	[ $MDSCOUNT -lt 2 ] && skip "needs >= 2 MDTs" && return
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 
 	mkdir $DIR/$tdir
 	chmod go+rwx $DIR/$tdir
@@ -2830,6 +2850,15 @@ test_33f() {
 }
 run_test 33f "nonroot user can create, access, and remove a striped directory"
 
+test_33g() {
+	mkdir -p $DIR/$tdir/dir2
+
+	local err=$($RUNAS mkdir $DIR/$tdir/dir2 2>&1)
+	echo $err
+	[[ $err =~ "exists" ]] || error "Not exists error"
+}
+run_test 33g "nonroot user create already existing root created file"
+
 TEST_34_SIZE=${TEST_34_SIZE:-2000000000000}
 test_34a() {
 	rm -f $DIR/f34
@@ -3436,6 +3465,7 @@ test_39m() {
 run_test 39m "test atime and mtime before 1970"
 
 test_39n() { # LU-3832
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	local atime_diff=$(do_facet $SINGLEMDS \
 		lctl get_param -n mdd.*MDT0000*.atime_diff)
 	local atime0
@@ -3510,7 +3540,7 @@ test_39p() {
 run_test 39p "remote directory cached attributes updated after create ========"
 
 
-test_39p() { # LU-8041
+test_39q() { # LU-8041
 	local testdir=$DIR/$tdir
 	mkdir -p $testdir
 	multiop_bg_pause $testdir D_c || error "multiop failed"
@@ -3520,7 +3550,7 @@ test_39p() { # LU-8041
 	local atime=$(stat -c %X $testdir)
 	[ "$atime" -ne 0 ] || error "atime is zero"
 }
-run_test 39p "close won't zero out atime"
+run_test 39q "close won't zero out atime"
 
 test_40() {
 	dd if=/dev/zero of=$DIR/$tfile bs=4096 count=1
@@ -4024,6 +4054,7 @@ run_test 48e "Access to recreated parent subdir (should return errors)"
 
 test_49() { # LU-1030
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	remote_ost_nodsh && skip "remote OST with nodsh" && return
 	# get ost1 size - lustre-OST0000
 	ost1_size=$(do_facet ost1 $LFS df | grep ${ost1_svc} |
 		awk '{ print $4 }')
@@ -4075,87 +4106,75 @@ test_51a() {	# was test_51
 }
 run_test 51a "special situations: split htree with empty entry =="
 
-export NUMTEST=70000
+cleanup_print_lfs_df () {
+	trap 0
+	$LFS df
+	$LFS df -i
+}
+
 test_51b() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
-	local BASE=$DIR/d${base}.${TESTSUITE}
+	local dir=$DIR/$tdir
+
+	local nrdirs=$((65536 + 100))
 
 	# cleanup the directory
-	rm -fr $BASE
+	rm -fr $dir
 
-	test_mkdir -p -c1 $BASE
+	test_mkdir -p -c1 $dir
 
 	$LFS df
 	$LFS df -i
-	local mdtidx=$(printf "%04x" $($LFS getstripe -M $BASE))
+	local mdtidx=$(printf "%04x" $($LFS getstripe -M $dir))
 	local numfree=$(lctl get_param -n mdc.$FSNAME-MDT$mdtidx*.filesfree)
-	[[ $numfree -lt 21000 ]] &&
+	[[ $numfree -lt $nrdirs ]] &&
 		skip "not enough free inodes ($numfree) on MDT$mdtidx" &&
 		return
 
-	[[ $numfree -lt $NUMTEST ]] && NUMTEST=$(($numfree - 50)) &&
-		echo "reduced count to $NUMTEST due to inodes on MDT$mdtidx"
-
 	# need to check free space for the directories as well
 	local blkfree=$(lctl get_param -n mdc.$FSNAME-MDT$mdtidx*.kbytesavail)
-	numfree=$((blkfree / 4))
-	[[ $numfree -lt $NUMTEST ]] && NUMTEST=$((numfree - 50)) &&
-		echo "reduced count to $NUMTEST due to blocks on MDT$mdtidx"
-
-	createmany -d $BASE/d $NUMTEST && echo $NUMTEST > $BASE/fnum ||
-	{
-		$LFS df
-		$LFS df -i
-		echo "failed" > $BASE/fnum
-		error "failed to create $NUMTEST subdirs in MDT$mdtidx:$BASE"
-	}
-}
-run_test 51b "exceed 64k subdirectory nlink limit"
+	numfree=$(( blkfree / $(fs_inode_ksize) ))
+	[[ $numfree -lt $nrdirs ]] && skip "not enough blocks ($numfree)" &&
+		return
 
-test_51ba() { # LU-993
-	local BASE=$DIR/d${base}.${TESTSUITE}
-	# unlink all but 100 subdirectories, then check it still works
-	local LEFT=100
-	[ -f $BASE/fnum ] && local NUMPREV=$(cat $BASE/fnum) && rm $BASE/fnum
+	trap cleanup_print_lfsdf EXIT
 
-	[ "$NUMPREV" != "failed" ] && NUMTEST=$NUMPREV
-	local DELETE=$((NUMTEST - LEFT))
+	# create files
+	createmany -d $dir/d $nrdirs ||
+		error "failed to create $nrdirs subdirs in MDT$mdtidx:$dir"
 
-	# continue on to run this test even if 51b didn't finish,
-	# just to delete the many subdirectories created.
-	[ ! -d "${BASE}/d1" ] && skip "test_51b() not run" && return 0
+	# really created :
+	nrdirs=$(ls -U $dir | wc -l)
+
+	# unlink all but 100 subdirectories, then check it still works
+	local left=100
+	local delete=$((nrdirs - left))
+
+	$LFS df
+	$LFS df -i
 
 	# for ldiskfs the nlink count should be 1, but this is OSD specific
 	# and so this is listed for informational purposes only
-	echo "nlink before: $(stat -c %h $BASE), created before: $NUMTEST"
-	unlinkmany -d $BASE/d $DELETE
-	RC=$?
-
-	if [ $RC -ne 0 ]; then
-		if [ "$NUMPREV" == "failed" ]; then
-			skip "previous setup failed"
-			return 0
-		else
-			error "unlink of first $DELETE subdirs failed"
-			return $RC
-		fi
-	fi
+	echo "nlink before: $(stat -c %h $dir), created before: $nrdirs"
+	unlinkmany -d $dir/d $delete ||
+		error "unlink of first $delete subdirs failed"
 
-	echo "nlink between: $(stat -c %h $BASE)"
-	# trim the first line of ls output
-	local FOUND=$(($(ls -l ${BASE} | wc -l) - 1))
-	[ $FOUND -ne $LEFT ] &&
-		error "can't find subdirs: found only $FOUND/$LEFT"
+	echo "nlink between: $(stat -c %h $dir)"
+	local found=$(ls -U $dir | wc -l)
+	[ $found -ne $left ] &&
+		error "can't find subdirs: found only $found, expected $left"
 
-	unlinkmany -d $BASE/d $DELETE $LEFT ||
-		error "unlink of second $LEFT subdirs failed"
+	unlinkmany -d $dir/d $delete $left ||
+		error "unlink of second $left subdirs failed"
 	# regardless of whether the backing filesystem tracks nlink accurately
 	# or not, the nlink count shouldn't be more than "." and ".." here
-	local AFTER=$(stat -c %h $BASE)
-	[[ $AFTER -gt 2 ]] && error "nlink after: $AFTER > 2" ||
-		echo "nlink after: $AFTER"
+	local after=$(stat -c %h $dir)
+	[[ $after -gt 2 ]] && error "nlink after: $after > 2" ||
+		echo "nlink after: $after"
+
+	cleanup_print_lfs_df
 }
-run_test 51ba "verify nlink for many subdirectory cleanup"
+run_test 51b "exceed 64k subdirectory nlink limit on create, verify unlink"
 
 test_51d() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
@@ -4351,6 +4370,7 @@ find_loop_dev() {
 }
 
 cleanup_54c() {
+	local rc=0
 	loopdev="$DIR/loop54c"
 
 	trap 0
@@ -4425,30 +4445,47 @@ test_56a() {	# was test_56
 		error "$GETSTRIPE $DIR/$tdir: found $FILENUM, not $NUMFILES"
 	echo "$GETSTRIPE --recursive passed."
 
-        # test lfs getstripe with file instead of dir
+	# test lfs getstripe with file instead of dir
 	FILENUM=$($GETSTRIPE $DIR/$tdir/file1 | grep -c obdidx)
 	[[ $FILENUM -eq 1 ]] ||
 		error "$GETSTRIPE $DIR/$tdir/file1: found $FILENUM, not 1"
 	echo "$GETSTRIPE file1 passed."
 
-        #test lfs getstripe with --verbose
+	#test lfs getstripe with --verbose
 	[[ $($GETSTRIPE --verbose $DIR/$tdir |
 		grep -c lmm_magic) -eq $NUMFILES ]] ||
 		error "$GETSTRIPE --verbose $DIR/$tdir: want $NUMFILES"
 	[[ $($GETSTRIPE $DIR/$tdir | grep -c lmm_magic) -eq 0 ]] ||
-		rror "$GETSTRIPE $DIR/$tdir: showed lmm_magic"
+		error "$GETSTRIPE $DIR/$tdir: showed lmm_magic"
+
+	#test lfs getstripe with -v prints lmm_fid
+	[[ $($GETSTRIPE -v $DIR/$tdir | grep -c lmm_fid) -eq $NUMFILES ]] ||
+		error "$GETSTRIPE -v $DIR/$tdir: want $NUMFILES lmm_fid: lines"
+	[[ $($GETSTRIPE $DIR/$tdir | grep -c lmm_fid) -eq 0 ]] ||
+		error "$GETSTRIPE $DIR/$tdir: showed lmm_fid"
 	echo "$GETSTRIPE --verbose passed."
 
-        #test lfs getstripe with --obd
-        $GETSTRIPE --obd wrong_uuid $DIR/$tdir 2>&1 |
+	#check for FID information
+	local fid1=$($GETSTRIPE --fid $DIR/$tdir/file1)
+	local fid2=$($GETSTRIPE --verbose $DIR/$tdir/file1 |
+		       awk '/lmm_fid: / { print $2 }')
+	local fid3=$($LFS path2fid $DIR/$tdir/file1)
+	[ "$fid1" != "$fid2" ] &&
+		error "getstripe --fid $fid1 != getstripe --verbose $fid2"
+	[ "$fid1" != "$fid3" ] &&
+		error "getstripe --fid $fid1 != lfs path2fid $fid3"
+	echo "$GETSTRIPE --fid passed."
+
+	#test lfs getstripe with --obd
+	$GETSTRIPE --obd wrong_uuid $DIR/$tdir 2>&1 |
 		grep -q "unknown obduuid" ||
 		error "$GETSTRIPE --obd wrong_uuid should return error message"
 
 	[[ $OSTCOUNT -lt 2 ]] &&
-                skip_env "skipping other $GETSTRIPE --obd test" && return
+		skip_env "skipping other $GETSTRIPE --obd test" && return
 
-        OSTIDX=1
-        OBDUUID=$(ostuuid_from_index $OSTIDX)
+	OSTIDX=1
+	OBDUUID=$(ostuuid_from_index $OSTIDX)
 	FILENUM=$($GETSTRIPE -ir $DIR/$tdir | grep "^$OSTIDX\$" | wc -l)
 	FOUND=$($GETSTRIPE -r --obd $OBDUUID $DIR/$tdir | grep obdidx | wc -l)
 	[[ $FOUND -eq $FILENUM ]] ||
@@ -4461,6 +4498,26 @@ test_56a() {	# was test_56
 }
 run_test 56a "check $GETSTRIPE"
 
+test_56b() {
+	test_mkdir $DIR/$tdir
+	NUMDIRS=3
+	for i in $(seq 1 $NUMDIRS); do
+		test_mkdir $DIR/$tdir/dir$i
+	done
+
+	# test lfs getdirstripe default mode is non-recursion, which is
+	# different from lfs getstripe
+	dircnt=$($LFS getdirstripe $DIR/$tdir | grep -c lmv_stripe_count)
+	[[ $dircnt -eq 1 ]] ||
+		error "$LFS getdirstripe: found $dircnt, not 1"
+	dircnt=$($LFS getdirstripe --recursive $DIR/$tdir |
+		grep -c lmv_stripe_count)
+	[[ $dircnt -eq $((NUMDIRS + 1)) ]] ||
+		error "$LFS getdirstripe --recursive: found $dircnt, \
+			not $((NUMDIRS + 1))"
+}
+run_test 56b "check $LFS getdirstripe"
+
 NUMFILES=3
 NUMDIRS=3
 setup_56() {
@@ -4774,7 +4831,7 @@ run_test 56s "check lfs find -stripe-count works"
 
 test_56t() { # LU-611
 	TDIR=$DIR/${tdir}t
-	setup_56 $NUMFILES $NUMDIRS "-s 512k"
+	setup_56 $NUMFILES $NUMDIRS "--stripe-size 512k"
 
 	$SETSTRIPE -S 256k $TDIR/$tfile.{0,1,2,3}
 
@@ -5329,14 +5386,14 @@ test_60d() {
 
 	# verify "lctl mark" is even working"
 	MESSAGE="test message ID $RANDOM $$"
-	$LCTL mark "$HOSTNAME $MESSAGE" || error "$LCTL mark failed"
+	$LCTL mark "$MESSAGE" || error "$LCTL mark failed"
 	dmesg | grep -q "$MESSAGE" || error "didn't find debug marker in log"
 
 	lctl set_param printk=0 || error "set lnet.printk failed"
 	lctl get_param -n printk | grep emerg || error "lnet.printk dropped emerg"
 	MESSAGE="new test message ID $RANDOM $$"
 	# Assume here that libcfs_debug_mark_buffer() uses D_WARNING
-	$LCTL mark "$HOSTNAME $MESSAGE" || error "$LCTL mark failed"
+	$LCTL mark "$MESSAGE" || error "$LCTL mark failed"
 	dmesg | grep -q "$MESSAGE" && error "D_WARNING wasn't masked" || true
 
 	lctl set_param -n printk="$SAVEPRINTK"
@@ -5345,6 +5402,7 @@ run_test 60d "test printk console message masking"
 
 test_60e() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	touch $DIR/$tfile
 #define OBD_FAIL_MDS_LLOG_CREATE_FAILED2  0x15b
 	do_facet mds1 lctl set_param fail_loc=0x15b
@@ -5577,34 +5635,59 @@ test_65k() { # bug11679
 	[[ $OSTCOUNT -lt 2 ]] && skip_env "too few OSTs" && return
 	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 
-    echo "Check OST status: "
-    local MDS_OSCS=`do_facet $SINGLEMDS lctl dl |
-              awk '/[oO][sS][cC].*md[ts]/ { print $4 }'`
+	local disable_precreate=true
+	[ $(lustre_version_code $SINGLEMDS) -le $(version_code 2.8.54) ] &&
+		disable_precreate=false
 
-    for OSC in $MDS_OSCS; do
-        echo $OSC "is activate"
-        do_facet $SINGLEMDS lctl --device %$OSC activate
-    done
+	echo "Check OST status: "
+	local MDS_OSCS=$(do_facet $SINGLEMDS lctl dl |
+		awk '/[oO][sS][cC].*md[ts]/ { print $4 }')
 
-    mkdir -p $DIR/$tdir
-    for INACTIVE_OSC in $MDS_OSCS; do
-        echo "Deactivate: " $INACTIVE_OSC
-        do_facet $SINGLEMDS lctl --device %$INACTIVE_OSC deactivate
-        for STRIPE_OSC in $MDS_OSCS; do
-            OST=`osc_to_ost $STRIPE_OSC`
-            IDX=`do_facet $SINGLEMDS lctl get_param -n lov.*md*.target_obd |
-                 awk -F: /$OST/'{ print $1 }' | head -n 1`
-
-            [ -f $DIR/$tdir/$IDX ] && continue
-            echo "$SETSTRIPE -i $IDX -c 1 $DIR/$tdir/$IDX"
-            $SETSTRIPE -i $IDX -c 1 $DIR/$tdir/$IDX
-            RC=$?
-            [ $RC -ne 0 ] && error "setstripe should have succeeded"
-        done
-        rm -f $DIR/$tdir/*
-        echo $INACTIVE_OSC "is Activate."
-        do_facet $SINGLEMDS lctl --device  %$INACTIVE_OSC activate
-    done
+	for OSC in $MDS_OSCS; do
+		echo $OSC "is active"
+		do_facet $SINGLEMDS lctl --device %$OSC activate
+	done
+
+	for INACTIVE_OSC in $MDS_OSCS; do
+		local ost=$(osc_to_ost $INACTIVE_OSC)
+		local ostnum=$(do_facet $SINGLEMDS lctl get_param -n \
+			       lov.*md*.target_obd |
+			       awk -F: /$ost/'{ print $1 }' | head -n 1)
+
+		mkdir -p $DIR/$tdir
+		$SETSTRIPE -i $ostnum -c 1 $DIR/$tdir
+		createmany -o $DIR/$tdir/$tfile.$ostnum. 1000
+
+		echo "Deactivate: " $INACTIVE_OSC
+		do_facet $SINGLEMDS lctl --device %$INACTIVE_OSC deactivate
+
+		local count=$(do_facet $SINGLEMDS "lctl get_param -n \
+			      osp.$ost*MDT0000.create_count")
+		local max_count=$(do_facet $SINGLEMDS "lctl get_param -n \
+				  osp.$ost*MDT0000.max_create_count")
+		$disable_precreate &&
+			do_facet $SINGLEMDS "lctl set_param -n \
+				osp.$ost*MDT0000.max_create_count=0"
+
+		for idx in $(seq 0 $((OSTCOUNT - 1))); do
+			[ -f $DIR/$tdir/$idx ] && continue
+			echo "$SETSTRIPE -i $idx -c 1 $DIR/$tdir/$idx"
+			$SETSTRIPE -i $idx -c 1 $DIR/$tdir/$idx ||
+				error "setstripe $idx should succeed"
+			rm -f $DIR/$tdir/$idx || error "rm $idx failed"
+		done
+		unlinkmany $DIR/$tdir/$tfile.$ostnum. 1000
+		rmdir $DIR/$tdir
+
+		do_facet $SINGLEMDS "lctl set_param -n \
+			osp.$ost*MDT0000.max_create_count=$max_count"
+		do_facet $SINGLEMDS "lctl set_param -n \
+			osp.$ost*MDT0000.create_count=$count"
+		do_facet $SINGLEMDS lctl --device  %$INACTIVE_OSC activate
+		echo $INACTIVE_OSC "is Activate"
+
+		wait_osc_import_state mds ost$ostnum FULL
+	done
 }
 run_test 65k "validate manual striping works properly with deactivated OSCs"
 
@@ -5616,6 +5699,12 @@ test_65l() { # bug 12836
 }
 run_test 65l "lfs find on -1 stripe dir ========================"
 
+test_65m() {
+	$RUNAS $SETSTRIPE -c 2 $MOUNT && error "setstripe should fail"
+	true
+}
+run_test 65m "normal user can't set filesystem default stripe"
+
 # bug 2543 - update blocks count on client
 test_66() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
@@ -5901,8 +5990,8 @@ set_inode_slab_tunables() {
 
 test_76() { # Now for bug 20433, added originally in bug 1443
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
-	local SLAB_SETTINGS=`get_inode_slab_tunables`
-	local CPUS=`getconf _NPROCESSORS_ONLN`
+	local SLAB_SETTINGS=$(get_inode_slab_tunables)
+	local CPUS=$(getconf _NPROCESSORS_ONLN 2>/dev/null)
 	# we cannot set limit below 1 which means 1 inode in each
 	# per-cpu cache is still allowed
 	set_inode_slab_tunables "1 1 0"
@@ -5919,7 +6008,7 @@ test_76() { # Now for bug 20433, added originally in bug 1443
 	AFTER_INODES=$(num_inodes)
 	echo "after inodes: $AFTER_INODES"
 	local wait=0
-	while [[ $((AFTER_INODES-1*CPUS)) -gt $BEFORE_INODES ]]; do
+	while [[ $((AFTER_INODES-1*${CPUS:-1})) -gt $BEFORE_INODES ]]; do
 		sleep 2
 		AFTER_INODES=$(num_inodes)
 		wait=$((wait+2))
@@ -6105,6 +6194,11 @@ run_test 77j "client only supporting ADLER32"
 rm -f $F77_TMP
 unset F77_TMP
 
+cleanup_test_78() {
+	trap 0
+	rm -f $DIR/$tfile
+}
+
 test_78() { # bug 10901
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
 	remote_ost || { skip_env "local OST" && return; }
@@ -6134,6 +6228,8 @@ test_78() { # bug 10901
 	[[ $SMALLESTOST -lt 10240 ]] &&
 		skip "too small OSTSIZE, useless to run large O_DIRECT test" && return 0
 
+	trap cleanup_test_78 EXIT
+
 	[[ $F78SIZE -gt $((SMALLESTOST * $OSTCOUNT / 1024 - 80)) ]] &&
 		F78SIZE=$((SMALLESTOST * $OSTCOUNT / 1024 - 80))
 
@@ -6146,7 +6242,7 @@ test_78() { # bug 10901
 		$DIRECTIO rdwr $DIR/$tfile 0 $FSIZE 1048576||error "rdwr failed"
 	done
 
-	rm -f $DIR/$tfile
+	cleanup_test_78
 }
 run_test 78 "handle large O_DIRECT writes correctly ============"
 
@@ -6628,6 +6724,9 @@ run_test 101e "check read-ahead for small read(1k) for small files(500k)"
 test_101f() {
 	which iozone || { skip "no iozone installed" && return; }
 
+	local old_debug=$($LCTL get_param debug)
+	$LCTL set_param debug="reada mmap"
+
 	# create a test file
 	iozone -i 0 -+n -r 1m -s 128m -w -f $DIR/$tfile > /dev/null 2>&1
 
@@ -6641,10 +6740,12 @@ test_101f() {
 	iozone -i 1 -+n -r 32k -s 128m -B -f $DIR/$tfile > /dev/null 2>&1
 
 	echo checking missing pages
+	$LCTL get_param llite.*.read_ahead_stats
 	local miss=$($LCTL get_param -n llite.*.read_ahead_stats |
 			get_named_value 'misses' | cut -d" " -f1 | calc_total)
 
-	[ $miss -lt 3 ] || error "misses too much pages!"
+	$LCTL set_param debug=$old_debug
+	[ $miss -lt 3 ] || error "misses too much pages ('$miss')!"
 	rm -f $DIR/$tfile
 }
 run_test 101f "check mmap read performance"
@@ -7223,6 +7324,7 @@ test_103a() {
 	[ -z "$(which setfacl 2>/dev/null)" ] &&
 		skip_env "could not find setfacl" && return
 	$GSS && skip "could not run under gss" && return
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 
 	gpasswd -a daemon bin				# LU-5641
 	do_facet $SINGLEMDS gpasswd -a daemon bin	# LU-5641
@@ -7245,6 +7347,15 @@ test_103a() {
 	run_acl_subtest misc || error  "misc test failed"
 	echo "performing permissions..."
 	run_acl_subtest permissions || error "permissions failed"
+	# LU-1482 mdd: Setting xattr are properly checked with and without ACLs
+	if [ $(lustre_version_code $SINGLEMDS) -gt $(version_code 2.8.55) -o \
+	     \( $(lustre_version_code $SINGLEMDS) -lt $(version_code 2.6) -a \
+	     $(lustre_version_code $SINGLEMDS) -ge $(version_code 2.5.29) \) ]
+	then
+		echo "performing permissions xattr..."
+		run_acl_subtest permissions_xattr ||
+			error "permissions_xattr failed"
+	fi
 	echo "performing setfacl..."
 	run_acl_subtest setfacl || error  "setfacl test failed"
 
@@ -7283,6 +7394,7 @@ test_103a() {
 run_test 103a "acl test ========================================="
 
 test_103b() {
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
         local noacl=false
         local MDT_DEV=$(mdsdevname ${SINGLEMDS//mds/})
         local mountopts=$MDS_MOUNT_OPTS
@@ -7617,9 +7729,10 @@ test_116a() { # was previously test_116()
 	echo "Wrote ${DIFF}KB to smaller OST $MINI1"
 	DIFF2=$(($MAXV1 - ${AVAIL[$MAXI1]}))
 	echo "Wrote ${DIFF2}KB to larger OST $MAXI1"
-	FILL=$(($DIFF2 * 100 / $DIFF - 100))
-	[ $DIFF -gt 0 ] &&
+	if [[ $DIFF -gt 0 ]]; then
+		FILL=$(($DIFF2 * 100 / $DIFF - 100))
 		echo "Wrote ${FILL}% more data to larger OST $MAXI1"
+	fi
 
 	# Figure out which files were written where
 	UUID=$(lctl get_param -n lov.${FSNAME}-clilov-*.target_obd |
@@ -7632,9 +7745,10 @@ test_116a() { # was previously test_116()
 	echo $UUID
 	MAXC=$($GETSTRIPE --ost $UUID $DIR/$tdir | grep $DIR | wc -l)
 	echo "$MAXC files created on larger OST $MAXI1"
-	FILL=$(($MAXC * 100 / $MINC - 100))
-	[[ $MINC -gt 0 ]] &&
+	if [[ $MINC -gt 0 ]]; then
+		FILL=$(($MAXC * 100 / $MINC - 100))
 		echo "Wrote ${FILL}% more files to larger OST $MAXI1"
+	fi
 	[[ $MAXC -gt $MINC ]] ||
 		error_ignore LU-9 "stripe QOS didn't balance free space"
 	simple_cleanup_common
@@ -8140,6 +8254,7 @@ run_test 119d "The DIO path should try to send a new rpc once one is completed"
 
 test_120a() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	test_mkdir -p $DIR/$tdir
         [ -z "`lctl get_param -n mdc.*.connect_flags | grep early_lock_cancel`" ] && \
                skip "no early lock cancel on server" && return 0
@@ -8171,6 +8286,7 @@ run_test 120a "Early Lock Cancel: mkdir test"
 
 test_120b() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
         test_mkdir $DIR/$tdir
         [ -z "$(lctl get_param -n mdc.*.connect_flags | grep early_lock_cancel)" ] && \
                skip "no early lock cancel on server" && return 0
@@ -8198,6 +8314,7 @@ run_test 120b "Early Lock Cancel: create test"
 
 test_120c() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	test_mkdir -c1 $DIR/$tdir
 	[ -z "$(lctl get_param -n mdc.*.connect_flags | grep early_lock_cancel)" ] && \
 	       skip "no early lock cancel on server" && return 0
@@ -8228,6 +8345,7 @@ run_test 120c "Early Lock Cancel: link test"
 
 test_120d() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	test_mkdir -p -c1 $DIR/$tdir
 	[ -z "$(lctl get_param -n mdc.*.connect_flags | grep early_lock_cancel)" ] && \
 	       skip "no early lock cancel on server" && return 0
@@ -8258,6 +8376,7 @@ test_120e() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
 	! $($LCTL get_param -n mdc.*.connect_flags | grep -q early_lock_can) &&
 		skip "no early lock cancel on server" && return 0
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	local dlmtrace_set=false
 
 	test_mkdir -p -c1 $DIR/$tdir
@@ -8299,6 +8418,7 @@ test_120f() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
         [ -z "`lctl get_param -n mdc.*.connect_flags | grep early_lock_cancel`" ] && \
                skip "no early lock cancel on server" && return 0
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
         test_mkdir -p -c1 $DIR/$tdir
         lru_resize_disable mdc
         lru_resize_disable osc
@@ -8337,6 +8457,7 @@ test_120g() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
         [ -z "`lctl get_param -n mdc.*.connect_flags | grep early_lock_cancel`" ] && \
                skip "no early lock cancel on server" && return 0
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
         lru_resize_disable mdc
         lru_resize_disable osc
         count=10000
@@ -8853,9 +8974,9 @@ test_129() {
 		return
 	fi
 	remote_mds_nodsh && skip "remote MDS with nodsh" && return
-	ENOSPC=28
-	EFBIG=27
-	has_warning=0
+	local ENOSPC=28
+	local EFBIG=27
+	local has_warning=0
 
 	rm -rf $DIR/$tdir
 	mkdir -p $DIR/$tdir
@@ -8887,7 +9008,7 @@ test_129() {
 			check_mds_dmesg '"has reached"' ||
 				error_exit "has reached message should be output"
 
-			[ $has_warning ] ||
+			[ $has_warning -eq 0 ] &&
 				error_exit "warning message should be output"
 
 			I=$(stat -c%s "$DIR/$tdir")
@@ -9304,12 +9425,14 @@ test_133a() {
 	# verify mdt stats first.
 	mkdir ${testdir} || error "mkdir failed"
 	check_stats $SINGLEMDS "mkdir" 1
-	touch ${testdir}/${tfile} || "touch failed"
+	touch ${testdir}/${tfile} || error "touch failed"
 	check_stats $SINGLEMDS "open" 1
 	check_stats $SINGLEMDS "close" 1
-	mknod ${testdir}/${tfile}-pipe p || "mknod failed"
-	check_stats $SINGLEMDS "mknod" 1
-	rm -f ${testdir}/${tfile}-pipe || "pipe remove failed"
+	[ $(lustre_version_code $SINGLEMDS) -ge $(version_code 2.8.54) ] && {
+		mknod ${testdir}/${tfile}-pipe p || error "mknod failed"
+		check_stats $SINGLEMDS "mknod" 2
+	}
+	rm -f ${testdir}/${tfile}-pipe || error "pipe remove failed"
 	check_stats $SINGLEMDS "unlink" 1
 	rm -f ${testdir}/${tfile} || error "file remove failed"
 	check_stats $SINGLEMDS "unlink" 2
@@ -9338,7 +9461,7 @@ test_133b() {
 	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	local testdir=$DIR/${tdir}/stats_testdir
 	mkdir -p ${testdir} || error "mkdir failed"
-	touch ${testdir}/${tfile} || "touch failed"
+	touch ${testdir}/${tfile} || error "touch failed"
 	cancel_lru_locks mdc
 
 	# clear stats.
@@ -9602,6 +9725,8 @@ test_133f() {
 run_test 133f "Check for LBUGs/Oopses/unreadable files in /proc"
 
 test_133g() {
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
+	remote_ost_nodsh && skip "remote OST with nodsh" && return
 	# Second verifying writability.
 	find $proc_dirs \
 		-type f \
@@ -9635,6 +9760,7 @@ test_133g() {
 run_test 133g "Check for Oopses on bad io area writes/reads in /proc"
 
 test_134a() {
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	[[ $(lustre_version_code $SINGLEMDS) -lt $(version_code 2.7.54) ]] &&
 		skip "Need MDS version at least 2.7.54" && return
 
@@ -9643,7 +9769,7 @@ test_134a() {
 
 	local nsdir="ldlm.namespaces.*-MDT0000-mdc-*"
 	local unused=$($LCTL get_param -n $nsdir.lock_unused_count)
-	[ $unused -eq 0 ] || "$unused locks are not cleared"
+	[ $unused -eq 0 ] || error "$unused locks are not cleared"
 
 	local nr=1000
 	createmany -o $DIR/$tdir/f $nr ||
@@ -9670,6 +9796,7 @@ test_134a() {
 run_test 134a "Server reclaims locks when reaching lock_reclaim_threshold"
 
 test_134b() {
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	[[ $(lustre_version_code $SINGLEMDS) -lt $(version_code 2.7.54) ]] &&
 		skip "Need MDS version at least 2.7.54" && return
 
@@ -9711,9 +9838,9 @@ run_test 134b "Server rejects lock request when reaching lock_limit_mb"
 
 test_140() { #bug-17379
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
-        test_mkdir -p $DIR/$tdir || error "Creating dir $DIR/$tdir"
-        cd $DIR/$tdir || error "Changing to $DIR/$tdir"
-        cp /usr/bin/stat . || error "Copying stat to $DIR/$tdir"
+	test_mkdir -p $DIR/$tdir || error "Creating dir $DIR/$tdir"
+	cd $DIR/$tdir || error "Changing to $DIR/$tdir"
+	cp $(which stat) . || error "Copying stat to $DIR/$tdir"
 
 	# VFS limits max symlink depth to 5(4KSTACK) or 7(8KSTACK) or 8
 	# For kernel > 3.5, bellow only tests consecutive symlink (MAX 40)
@@ -10061,17 +10188,17 @@ test_154A() {
 	[[ $(lustre_version_code $SINGLEMDS) -lt $(version_code 2.4.1) ]] &&
 		skip "Need MDS version at least 2.4.1" && return
 
-	touch $DIR/$tfile
-	local FID=$($LFS path2fid $DIR/$tfile)
-	[ -z "$FID" ] && error "path2fid unable to get $DIR/$tfile FID"
+	local tf=$DIR/$tfile
+	touch $tf
 
-	# check that we get the same pathname back
-	local FOUND=$($LFS fid2path $MOUNT "$FID")
-	[ -z "$FOUND" ] && error "fid2path unable to get $FID path"
-	[ "$FOUND" != "$DIR/$tfile" ] &&
-		error "fid2path(path2fid($DIR/$tfile)) = $FOUND != $DIR/$tfile"
+	local fid=$($LFS path2fid $tf)
+	[ -z "$fid" ] && error "path2fid unable to get $tf FID"
 
-	rm -rf $DIR/$tfile
+	# check that we get the same pathname back
+	local found=$($LFS fid2path $MOUNT "$fid")
+	[ -z "$found" ] && error "fid2path unable to get '$fid' path"
+	[ "$found" == "$tf" ] ||
+		error "fid2path($fid=path2fid($tf)) = $found != $tf"
 }
 run_test 154A "lfs path2fid and fid2path basic checks"
 
@@ -10160,6 +10287,7 @@ test_154c() {
 run_test 154c "lfs path2fid and fid2path multiple arguments"
 
 test_154d() {
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	[[ $(lustre_version_code $SINGLEMDS) -lt $(version_code 2.5.53) ]] &&
 		skip "Need MDS version at least 2.5.53" && return
 
@@ -10348,67 +10476,114 @@ test_155_big_load() {
     true
 }
 
+save_writethrough() {
+	local facets=$(get_facets OST)
+
+	save_lustre_params $facets "obdfilter.*.writethrough_cache_enable" > $1
+	save_lustre_params $facets "osd-*.*.writethrough_cache_enable" >> $1
+}
+
 test_155a() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	local p="$TMP/$TESTSUITE-$TESTNAME.parameters"
+	save_writethrough $p
+
 	set_cache read on
 	set_cache writethrough on
 	test_155_small_load
+	restore_lustre_params < $p
+	rm -f $p
 }
 run_test 155a "Verify small file correctness: read cache:on write_cache:on"
 
 test_155b() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	local p="$TMP/$TESTSUITE-$TESTNAME.parameters"
+	save_writethrough $p
+
 	set_cache read on
 	set_cache writethrough off
 	test_155_small_load
+	restore_lustre_params < $p
+	rm -f $p
 }
 run_test 155b "Verify small file correctness: read cache:on write_cache:off"
 
 test_155c() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	local p="$TMP/$TESTSUITE-$TESTNAME.parameters"
+	save_writethrough $p
+
 	set_cache read off
 	set_cache writethrough on
 	test_155_small_load
+	restore_lustre_params < $p
+	rm -f $p
 }
 run_test 155c "Verify small file correctness: read cache:off write_cache:on"
 
 test_155d() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	local p="$TMP/$TESTSUITE-$TESTNAME.parameters"
+	save_writethrough $p
+
 	set_cache read off
 	set_cache writethrough off
 	test_155_small_load
+	restore_lustre_params < $p
+	rm -f $p
 }
 run_test 155d "Verify small file correctness: read cache:off write_cache:off"
 
 test_155e() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	local p="$TMP/$TESTSUITE-$TESTNAME.parameters"
+	save_writethrough $p
+
 	set_cache read on
 	set_cache writethrough on
 	test_155_big_load
+	restore_lustre_params < $p
+	rm -f $p
 }
 run_test 155e "Verify big file correctness: read cache:on write_cache:on"
 
 test_155f() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	local p="$TMP/$TESTSUITE-$TESTNAME.parameters"
+	save_writethrough $p
+
 	set_cache read on
 	set_cache writethrough off
 	test_155_big_load
+	restore_lustre_params < $p
+	rm -f $p
 }
 run_test 155f "Verify big file correctness: read cache:on write_cache:off"
 
 test_155g() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	local p="$TMP/$TESTSUITE-$TESTNAME.parameters"
+	save_writethrough $p
+
 	set_cache read off
 	set_cache writethrough on
 	test_155_big_load
+	restore_lustre_params < $p
+	rm -f $p
 }
 run_test 155g "Verify big file correctness: read cache:off write_cache:on"
 
 test_155h() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	local p="$TMP/$TESTSUITE-$TESTNAME.parameters"
+	save_writethrough $p
+
 	set_cache read off
 	set_cache writethrough off
 	test_155_big_load
+	restore_lustre_params < $p
+	rm -f $p
 }
 run_test 155h "Verify big file correctness: read cache:off write_cache:off"
 
@@ -10419,12 +10594,14 @@ test_156() {
 	local BEFORE
 	local AFTER
 	local file="$DIR/$tfile"
+	local p="$TMP/$TESTSUITE-$TESTNAME.parameters"
 
 	[ "$(facet_fstype ost1)" = "zfs" -a \
 	   $(lustre_version_code ost1 -lt $(version_code 2.6.93)) ] &&
 		skip "LU-1956/LU-2261: stats not implemented on OSD ZFS" &&
 		return
 
+	save_writethrough $p
 	roc_hit_init
 
 	log "Turn on read and write cache"
@@ -10553,10 +10730,18 @@ test_156() {
 	fi
 
 	rm -f $file
+	restore_lustre_params < $p
+	rm -f $p
 }
 run_test 156 "Verification of tunables"
 
 #Changelogs
+cleanup_changelog () {
+	trap 0
+	echo "Deregistering changelog client $CL_USER"
+	do_facet $SINGLEMDS $LCTL --device $MDT0 changelog_deregister $CL_USER
+}
+
 err17935 () {
 	if [[ $MDSCOUNT -gt 1 ]]; then
 		error_ignore bz17935 $*
@@ -10597,10 +10782,12 @@ test_160a() {
 
 	local CL_USERS="mdd.$MDT0.changelog_users"
 	local GET_CL_USERS="do_facet $SINGLEMDS $LCTL get_param -n $CL_USERS"
-	USER=$(do_facet $SINGLEMDS $LCTL --device $MDT0 changelog_register -n)
-	echo "Registered as changelog user $USER"
-	$GET_CL_USERS | grep -q $USER ||
-		error "User $USER not found in changelog_users"
+	CL_USER=$(do_facet $SINGLEMDS $LCTL --device $MDT0 \
+		changelog_register -n)
+	echo "Registered as changelog user $CL_USER"
+	trap cleanup_changelog EXIT
+	$GET_CL_USERS | grep -q $CL_USER ||
+		error "User $CL_USER not found in changelog_users"
 
 	# change something
 	test_mkdir -p $DIR/$tdir/pics/2008/zachy
@@ -10644,9 +10831,9 @@ test_160a() {
 	[ "$fidc" == "$fidf" ] ||
 		err17935 "pfid in changelog $fidc != dir fid $fidf"
 
-	USER_REC1=$($GET_CL_USERS | awk "\$1 == \"$USER\" {print \$2}")
-	$LFS changelog_clear $MDT0 $USER $(($USER_REC1 + 5))
-	USER_REC2=$($GET_CL_USERS | awk "\$1 == \"$USER\" {print \$2}")
+	USER_REC1=$($GET_CL_USERS | awk "\$1 == \"$CL_USER\" {print \$2}")
+	$LFS changelog_clear $MDT0 $CL_USER $(($USER_REC1 + 5))
+	USER_REC2=$($GET_CL_USERS | awk "\$1 == \"$CL_USER\" {print \$2}")
 	echo "verifying user clear: $(( $USER_REC1 + 5 )) == $USER_REC2"
 	[ $USER_REC2 == $(($USER_REC1 + 5)) ] ||
 		err17935 "user index expected $(($USER_REC1 + 5)) is $USER_REC2"
@@ -10661,7 +10848,7 @@ test_160a() {
 	# LU-3446 changelog index reset on MDT restart
 	local MDT_DEV=$(mdsdevname ${SINGLEMDS//mds/})
 	CUR_REC1=$($GET_CL_USERS | head -n1 | cut -f3 -d' ')
-	$LFS changelog_clear $MDT0 $USER 0
+	$LFS changelog_clear $MDT0 $CL_USER 0
 	stop $SINGLEMDS || error "Fail to stop MDT."
 	start $SINGLEMDS $MDT_DEV $MDS_MOUNT_OPTS || error "Fail to start MDT."
 	CUR_REC2=$($GET_CL_USERS | head -n1 | cut -f3 -d' ')
@@ -10670,19 +10857,19 @@ test_160a() {
 		err17935 "current index should be $CUR_REC1 is $CUR_REC2"
 
 	echo "verifying user deregister"
-	do_facet $SINGLEMDS $LCTL --device $MDT0 changelog_deregister $USER
-	$GET_CL_USERS | grep -q $USER &&
-		error "User $USER still in changelog_users"
+	cleanup_changelog
+	$GET_CL_USERS | grep -q $CL_USER &&
+		error "User $CL_USER still in changelog_users"
 
 	USERS=$(( $($GET_CL_USERS | wc -l) - 2 ))
-	if [ $USERS -eq 0 ]; then
+	if [ $CL_USER -eq 0 ]; then
 		LAST_REC1=$($GET_CL_USERS | head -n1 | cut -f3 -d' ')
 		touch $DIR/$tdir/chloe
 		LAST_REC2=$($GET_CL_USERS | head -n1 | cut -f3 -d' ')
 		echo "verify changelogs are off: $LAST_REC1 == $LAST_REC2"
 		[ $LAST_REC1 == $LAST_REC2 ] || error "changelogs not off"
 	else
-		echo "$USERS other changelog users; can't verify off"
+		echo "$CL_USER other changelog users; can't verify off"
 	fi
 }
 run_test 160a "changelog sanity"
@@ -10695,10 +10882,12 @@ test_160b() { # LU-3587
 
 	local CL_USERS="mdd.$MDT0.changelog_users"
 	local GET_CL_USERS="do_facet $SINGLEMDS $LCTL get_param -n $CL_USERS"
-	USER=$(do_facet $SINGLEMDS $LCTL --device $MDT0 changelog_register -n)
-	echo "Registered as changelog user $USER"
-	$GET_CL_USERS | grep -q $USER ||
-		error "User $USER not found in changelog_users"
+	CL_USER=$(do_facet $SINGLEMDS $LCTL --device $MDT0 \
+		changelog_register -n)
+	echo "Registered as changelog user $CL_USER"
+	trap cleanup_changelog EXIT
+	$GET_CL_USERS | grep -q $CL_USER ||
+		error "User $CL_USER not found in changelog_users"
 
 	local LONGNAME1=$(str_repeat a 255)
 	local LONGNAME2=$(str_repeat b 255)
@@ -10710,11 +10899,8 @@ test_160b() { # LU-3587
 	mv $LONGNAME1 $LONGNAME2
 
 	$LFS changelog $MDT0 | grep RENME
-
-	echo "deregistering $USER"
-	do_facet $SINGLEMDS $LCTL --device $MDT0 changelog_deregister $USER
-
 	rm -f $LONGNAME2
+	cleanup_changelog
 }
 run_test 160b "Verify that very long rename doesn't crash in changelog"
 
@@ -10731,8 +10917,9 @@ test_160c() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
 
 	# Registration step
-	local USER=$(do_facet $SINGLEMDS $LCTL --device $MDT0 \
+	CL_USER=$(do_facet $SINGLEMDS $LCTL --device $MDT0 \
 		changelog_register -n)
+	trap cleanup_changelog EXIT
 
 	rm -rf $DIR/$tdir
 	mkdir -p $DIR/$tdir
@@ -10744,11 +10931,10 @@ test_160c() {
 	$LFS changelog $MDT0
 	TRUNCS=$($LFS changelog $MDT0 | tail -5 | grep -c "TRUNC")
 	[ $TRUNCS -eq 1 ] || err17935 "TRUNC changelog mask count $TRUNCS != 1"
-	$LFS changelog_clear $MDT0 $USER 0
+	$LFS changelog_clear $MDT0 $CL_USER 0
 
 	# Deregistration step
-	echo "deregistering $USER"
-	do_facet $SINGLEMDS $LCTL --device $MDT0 changelog_deregister $USER
+	cleanup_changelog
 }
 run_test 160c "verify that changelog log catch the truncate event"
 
@@ -10764,21 +10950,22 @@ test_160d() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
 
 	# Registration step
-	local USER=$(do_facet mds1 $LCTL --device $MDT0 \
+	CL_USER=$(do_facet mds1 $LCTL --device $MDT0 \
 		changelog_register -n)
 
+	trap cleanup_changelog EXIT
 	mkdir -p $DIR/$tdir/migrate_dir
-	$LFS changelog_clear $MDT0 $USER 0
+	$LFS changelog_clear $MDT0 $CL_USER 0
 
 	$LFS migrate -m 1 $DIR/$tdir/migrate_dir || error "migrate fails"
 	$LFS changelog $MDT0
 	MIGRATES=$($LFS changelog $MDT0 | tail -5 | grep -c "MIGRT")
-	$LFS changelog_clear $MDT0 $USER 0
+	$LFS changelog_clear $MDT0 $CL_USER 0
 	[ $MIGRATES -eq 1 ] ||
 		error "MIGRATE changelog mask count $MIGRATES != 1"
 
 	# Deregistration step
-	do_facet mds1 $LCTL --device $MDT0 changelog_deregister $USER
+	cleanup_changelog
 }
 run_test 160d "verify that changelog log catch the migrate event"
 
@@ -10885,8 +11072,10 @@ test_161c() {
 
 	# define CLF_RENAME_LAST 0x0001
 	# rename overwrite a target having nlink = 1 (changelog flag 0x1)
-	local USER=$(do_facet $SINGLEMDS $LCTL --device $MDT0 \
+	CL_USER=$(do_facet $SINGLEMDS $LCTL --device $MDT0 \
 		changelog_register -n)
+
+	trap cleanup_changelog EXIT
 	rm -rf $DIR/$tdir
 	mkdir -p $DIR/$tdir
 	touch $DIR/$tdir/foo_161c
@@ -10895,10 +11084,8 @@ test_161c() {
 	$LFS changelog $MDT0 | grep RENME
 	local flags=$($LFS changelog $MDT0 | grep RENME | tail -1 | \
 		cut -f5 -d' ')
-	$LFS changelog_clear $MDT0 $USER 0
+	$LFS changelog_clear $MDT0 $CL_USER 0
 	if [ x$flags != "x0x1" ]; then
-		do_facet $SINGLEMDS $LCTL --device $MDT0 changelog_deregister \
-			$USER
 		error "flag $flags is not 0x1"
 	fi
 	echo "rename overwrite a target having nlink = 1," \
@@ -10911,10 +11098,8 @@ test_161c() {
 	mv -f $DIR/$tdir/foo_161c $DIR/$tdir/bar_161c
 	$LFS changelog $MDT0 | grep RENME
 	flags=$($LFS changelog $MDT0 | grep RENME | tail -1 | cut -f5 -d' ')
-	$LFS changelog_clear $MDT0 $USER 0
+	$LFS changelog_clear $MDT0 $CL_USER 0
 	if [ x$flags != "x0x0" ]; then
-		do_facet $SINGLEMDS $LCTL --device $MDT0 changelog_deregister \
-			$USER
 		error "flag $flags is not 0x0"
 	fi
 	echo "rename overwrite a target having nlink > 1," \
@@ -10925,10 +11110,8 @@ test_161c() {
 	mv -f $DIR/$tdir/foo_161c $DIR/$tdir/foo2_161c
 	$LFS changelog $MDT0 | grep RENME
 	flags=$($LFS changelog $MDT0 | grep RENME | tail -1 | cut -f5 -d' ')
-	$LFS changelog_clear $MDT0 $USER 0
+	$LFS changelog_clear $MDT0 $CL_USER 0
 	if [ x$flags != "x0x0" ]; then
-		do_facet $SINGLEMDS $LCTL --device $MDT0 changelog_deregister \
-			$USER
 		error "flag $flags is not 0x0"
 	fi
 	echo "rename doesn't overwrite a target," \
@@ -10939,10 +11122,8 @@ test_161c() {
 	rm -f $DIR/$tdir/foo2_161c
 	$LFS changelog $MDT0 | grep UNLNK
 	flags=$($LFS changelog $MDT0 | grep UNLNK | tail -1 | cut -f5 -d' ')
-	$LFS changelog_clear $MDT0 $USER 0
+	$LFS changelog_clear $MDT0 $CL_USER 0
 	if [ x$flags != "x0x1" ]; then
-		do_facet $SINGLEMDS $LCTL --device $MDT0 changelog_deregister \
-			$USER
 		error "flag $flags is not 0x1"
 	fi
 	echo "unlink a file having nlink = 1," \
@@ -10953,15 +11134,13 @@ test_161c() {
 	rm -f $DIR/$tdir/foobar_161c
 	$LFS changelog $MDT0 | grep UNLNK
 	flags=$($LFS changelog $MDT0 | grep UNLNK | tail -1 | cut -f5 -d' ')
-	$LFS changelog_clear $MDT0 $USER 0
+	$LFS changelog_clear $MDT0 $CL_USER 0
 	if [ x$flags != "x0x0" ]; then
-		do_facet $SINGLEMDS $LCTL --device $MDT0 changelog_deregister \
-			$USER
 		error "flag $flags is not 0x0"
 	fi
 	echo "unlink a file having nlink > 1," \
 		"changelog record has flags of $flags"
-	do_facet $SINGLEMDS $LCTL --device $MDT0 changelog_deregister $USER
+	cleanup_changelog
 }
 run_test 161c "check CL_RENME[UNLINK] changelog record flags"
 
@@ -11449,6 +11628,8 @@ test_184b() {
 run_test 184b "Forbidden layout swap (will generate errors)"
 
 test_184c() {
+	local cmpn_arg=$(cmp -n 2>&1 | grep "invalid option")
+	[ -n "$cmpn_arg" ] && skip_env "cmp does not support -n" && return
 	check_swap_layouts_support && return 0
 
 	local dir0=$DIR/$tdir/$testnum
@@ -11881,10 +12062,11 @@ jobstats_set() {
 }
 
 cleanup_205() {
+	trap 0
 	do_facet $SINGLEMDS \
 		$LCTL set_param mdt.*.job_cleanup_interval=$OLD_INTERVAL
 	[ $OLD_JOBENV != $JOBENV ] && jobstats_set $OLD_JOBENV
-	do_facet $SINGLEMDS lctl --device $MDT0 changelog_deregister $CL_USER
+	cleanup_changelog
 }
 
 test_205() { # Job stats
@@ -12448,16 +12630,16 @@ run_test 222a "AGL for ls should not trigger CLIO lock failure ================"
 
 test_222b () {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
-       rm -rf $DIR/$tdir
-       test_mkdir -p $DIR/$tdir
-       $SETSTRIPE -c 1 -i 0 $DIR/$tdir
-       createmany -o $DIR/$tdir/$tfile 10
-       cancel_lru_locks mdc
-       cancel_lru_locks osc
-       #define OBD_FAIL_LDLM_AGL_DELAY           0x31a
-       $LCTL set_param fail_loc=0x31a
-       rm -r $DIR/$tdir || "AGL for rmdir failed"
-       $LCTL set_param fail_loc=0
+	rm -rf $DIR/$tdir
+	test_mkdir -p $DIR/$tdir
+	$SETSTRIPE -c 1 -i 0 $DIR/$tdir
+	createmany -o $DIR/$tdir/$tfile 10
+	cancel_lru_locks mdc
+	cancel_lru_locks osc
+	#define OBD_FAIL_LDLM_AGL_DELAY           0x31a
+	$LCTL set_param fail_loc=0x31a
+	rm -r $DIR/$tdir || error "AGL for rmdir failed"
+	$LCTL set_param fail_loc=0
 }
 run_test 222b "AGL for rmdir should not trigger CLIO lock failure ============="
 
@@ -12501,6 +12683,12 @@ run_test 224b "Don't panic on bulk IO failure"
 
 test_224c() { # LU-6441
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
+
+	local p="$TMP/$TESTSUITE-$TESTNAME.parameters"
+	save_writethrough $p
+	set_cache writethrough on
+
 	local pages_per_rpc=$($LCTL get_param \
 				osc.*.max_pages_per_rpc)
 	local at_max=$($LCTL get_param -n at_max)
@@ -12518,10 +12706,11 @@ test_224c() { # LU-6441
 		error "conf_param timeout=5 failed"
 
 	#define OBD_FAIL_PTLRPC_CLIENT_BULK_CB3   0x520
-	$LCTL set_param fail_loc=0x520
+	do_facet ost1 $LCTL set_param fail_loc=0x520
+	$LFS setstripe -c 1 -i 0 $DIR/$tfile
 	dd if=/dev/zero of=$DIR/$tfile bs=8MB count=1
 	sync
-	$LCTL set_param fail_loc=0
+	do_facet ost1 $LCTL set_param fail_loc=0
 
 	set_conf_param_and_check client "$test_at" "$param_at" $at_max ||
 		error "conf_param at_max=$at_max failed"
@@ -12529,6 +12718,8 @@ test_224c() { # LU-6441
 		$timeout || error "conf_param timeout=$timeout failed"
 
 	$LCTL set_param -n $pages_per_rpc
+	restore_lustre_params < $p
+	rm -f $p
 }
 run_test 224c "Don't hang if one of md lost during large bulk RPC"
 
@@ -13182,7 +13373,7 @@ test_230f() {
 
 	# a should be migrated to MDT1, since no other links on MDT0
 	$LFS migrate -m 1 $DIR/$tdir/migrate_dir ||
-		error "migrate dir fails"
+		error "#1 migrate dir fails"
 	mdt_index=$($LFS getstripe -M $DIR/$tdir/migrate_dir)
 	[ $mdt_index == 1 ] || error "migrate_dir is not on MDT1"
 	mdt_index=$($LFS getstripe -M $DIR/$tdir/migrate_dir/a)
@@ -13190,12 +13381,12 @@ test_230f() {
 
 	# a should stay on MDT1, because it is a mulitple link file
 	$LFS migrate -m 0 $DIR/$tdir/migrate_dir ||
-		error "migrate dir fails"
+		error "#2 migrate dir fails"
 	mdt_index=$($LFS getstripe -M $DIR/$tdir/migrate_dir/a)
 	[ $mdt_index == 1 ] || error "a is not on MDT1"
 
 	$LFS migrate -m 1 $DIR/$tdir/migrate_dir ||
-		error "migrate dir fails"
+		error "#3 migrate dir fails"
 
 	a_fid=$($LFS path2fid $DIR/$tdir/migrate_dir/a)
 	ln_fid=$($LFS path2fid $DIR/$tdir/other_dir/ln1)
@@ -13206,7 +13397,7 @@ test_230f() {
 
 	# a should be migrated to MDT0, since no other links on MDT1
 	$LFS migrate -m 0 $DIR/$tdir/migrate_dir ||
-		error "migrate dir fails"
+		error "#4 migrate dir fails"
 	mdt_index=$($LFS getstripe -M $DIR/$tdir/migrate_dir/a)
 	[ $mdt_index == 0 ] || error "a is not on MDT0"
 
@@ -13488,6 +13679,7 @@ test_239() {
 run_test 239 "osp_sync test"
 
 test_239a() { #LU-5297
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	touch $DIR/$tfile
 	#define OBD_FAIL_OSP_CHECK_INVALID_REC     0x2100
 	do_facet $SINGLEMDS $LCTL set_param fail_loc=0x2100
@@ -13497,6 +13689,7 @@ test_239a() { #LU-5297
 run_test 239a "process invalid osp sync record correctly"
 
 test_239b() { #LU-5297
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	touch $DIR/$tfile1
 	#define OBD_FAIL_OSP_CHECK_ENOMEM     0x2101
 	do_facet $SINGLEMDS $LCTL set_param fail_loc=0x2101
@@ -13511,6 +13704,7 @@ run_test 239b "process osp sync record with ENOMEM error correctly"
 
 test_240() {
 	[ $MDSCOUNT -lt 2 ] && skip "needs >= 2 MDTs" && return
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 
 	mkdir -p $DIR/$tdir
 
@@ -13565,6 +13759,7 @@ test_241b() {
 run_test 241b "dio vs dio"
 
 test_242() {
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	mkdir -p $DIR/$tdir
 	touch $DIR/$tdir/$tfile
 
@@ -13620,6 +13815,7 @@ test_245() {
 run_test 245 "check mdc connection flag/data: multiple modify RPCs"
 
 test_246() { # LU-7371
+	remote_ost_nodsh && skip "remote OST with nodsh" && return
 	[ $(lustre_version_code ost1) -lt $(version_code 2.7.62) ] &&
 		skip "Need OST version >= 2.7.62" && return 0
 	do_facet ost1 $LCTL set_param fail_val=4095
@@ -13716,6 +13912,69 @@ test_247e() {
 }
 run_test 247e "mount .. as fileset"
 
+test_248() {
+	local fast_read_sav=$($LCTL get_param -n llite.*.fast_read 2>/dev/null)
+	[ -z "$fast_read_sav" ] && skip "no fast read support" && return
+
+	# create a large file for fast read verification
+	dd if=/dev/zero of=$DIR/$tfile bs=1M count=128 > /dev/null 2>&1
+
+	# make sure the file is created correctly
+	$CHECKSTAT -s $((128*1024*1024)) $DIR/$tfile ||
+		{ rm -f $DIR/$tfile; skip "file creation error" && return; }
+
+	echo "Test 1: verify that fast read is 4 times faster on cache read"
+
+	# small read with fast read enabled
+	$LCTL set_param -n llite.*.fast_read=1
+	local t_fast=$(dd if=$DIR/$tfile of=/dev/null bs=4k 2>&1 |
+		awk '/copied/ { print $6 }')
+
+	# small read with fast read disabled
+	$LCTL set_param -n llite.*.fast_read=0
+	local t_slow=$(dd if=$DIR/$tfile of=/dev/null bs=4k 2>&1 |
+		awk '/copied/ { print $6 }')
+
+	# verify that fast read is 4 times faster for cache read
+	[ $(bc <<< "4 * $t_fast < $t_slow") -eq 1 ] ||
+		error_not_in_vm "fast read was not 4 times faster: " \
+			   "$t_fast vs $t_slow"
+
+	echo "Test 2: verify the performance between big and small read"
+	$LCTL set_param -n llite.*.fast_read=1
+
+	# 1k non-cache read
+	cancel_lru_locks osc
+	local t_1k=$(dd if=$DIR/$tfile of=/dev/null bs=1k 2>&1 |
+		awk '/copied/ { print $6 }')
+
+	# 1M non-cache read
+	cancel_lru_locks osc
+	local t_1m=$(dd if=$DIR/$tfile of=/dev/null bs=1k 2>&1 |
+		awk '/copied/ { print $6 }')
+
+	# verify that big IO is not 4 times faster than small IO
+	[ $(bc <<< "4 * $t_1k >= $t_1m") -eq 1 ] ||
+		error_not_in_vm "bigger IO is way too fast: $t_1k vs $t_1m"
+
+	$LCTL set_param -n llite.*.fast_read=$fast_read_sav
+	rm -f $DIR/$tfile
+}
+run_test 248 "fast read verification"
+
+test_249() { # LU-7890
+	rm -f $DIR/$tfile
+	$SETSTRIPE -c 1 $DIR/$tfile
+
+	[ $(lustre_version_code $SINGLEMDS) -lt $(version_code 2.8.53) ] &&
+	skip "Need at least version 2.8.54"
+
+	# Offset 2T == 4k * 512M
+	dd if=/dev/zero of=$DIR/$tfile bs=4k count=1 seek=512M ||
+		error "dd to 2T offset failed"
+}
+run_test 249 "Write above 2T file size"
+
 test_250() {
 	[ "$(facet_fstype ost$(($($GETSTRIPE -i $DIR/$tfile) + 1)))" = "zfs" ] \
 	 && skip "no 16TB file size limit on ZFS" && return
@@ -13755,6 +14014,8 @@ test_252() {
 	local num
 	local gen
 
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
+	remote_ost_nodsh && skip "remote OST with nodsh" && return
 	if [ "$(facet_fstype ost1)" != "ldiskfs" -o \
 	     "$(facet_fstype mds1)" != "ldiskfs" ]; then
 		skip "can only run lr_reader on ldiskfs target"
@@ -13798,6 +14059,129 @@ test_252() {
 }
 run_test 252 "check lr_reader tool"
 
+test_253_fill_ost() {
+	local size_mb #how many MB should we write to pass watermark
+	local lwm=$3  #low watermark
+	local free_10mb #10% of free space
+
+	free_kb=$($LFS df $MOUNT | grep $1 | awk '{ print $4 }')
+	size_mb=$((free_kb / 1024 - lwm))
+	free_10mb=$((free_kb / 10240))
+	#If 10% of free space cross low watermark use it
+	if (( free_10mb > size_mb )); then
+		size_mb=$free_10mb
+	else
+		#At least we need to store 1.1 of difference between
+		#free space and low watermark
+		size_mb=$((size_mb + size_mb / 10))
+	fi
+	if (( lwm <= $((free_kb / 1024)) )) || [ ! -f $DIR/$tdir/1 ]; then
+		dd if=/dev/zero of=$DIR/$tdir/1 bs=1M count=$size_mb \
+			 oflag=append conv=notrunc
+	fi
+
+	sleep_maxage
+
+	free_kb=$($LFS df $MOUNT | grep $1 | awk '{ print $4 }')
+	echo "OST still has $((free_kb / 1024)) mbytes free"
+}
+
+test_253() {
+	local ostidx=0
+	local rc=0
+
+	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
+	remote_mgs_nodsh && skip "remote MGS with nodsh" && return
+
+	local ost_name=$($LFS osts | grep ${ostidx}": " | \
+		awk '{print $2}' | sed -e 's/_UUID$//')
+	# on the mdt's osc
+	local mdtosc_proc1=$(get_mdtosc_proc_path $SINGLEMDS $ost_name)
+	do_facet $SINGLEMDS $LCTL get_param -n \
+		osp.$mdtosc_proc1.reserved_mb_high ||
+		{ skip  "remote MDS does not support reserved_mb_high" &&
+		  return; }
+
+	rm -rf $DIR/$tdir
+	wait_mds_ost_sync
+	wait_delete_completed
+	mkdir $DIR/$tdir
+
+	local last_wm_h=$(do_facet $SINGLEMDS $LCTL get_param -n \
+			osp.$mdtosc_proc1.reserved_mb_high)
+	local last_wm_l=$(do_facet $SINGLEMDS $LCTL get_param -n \
+			osp.$mdtosc_proc1.reserved_mb_low)
+	echo "prev high watermark $last_wm_h, prev low watermark $last_wm_l"
+
+	do_facet mgs $LCTL pool_new $FSNAME.$TESTNAME ||
+		error "Pool creation failed"
+	do_facet mgs $LCTL pool_add $FSNAME.$TESTNAME $ost_name ||
+		error "Adding $ost_name to pool failed"
+
+	# Wait for client to see a OST at pool
+	wait_update $HOSTNAME "$LCTL get_param -n
+		lov.$FSNAME-*.pools.$TESTNAME | sort -u |
+		grep $ost_name" "$ost_name""_UUID" $((TIMEOUT/2)) ||
+		error "Client can not see the pool"
+	$SETSTRIPE $DIR/$tdir -i $ostidx -c 1 -p $FSNAME.$TESTNAME ||
+		error "Setstripe failed"
+
+	dd if=/dev/zero of=$DIR/$tdir/0 bs=1M count=10
+	local blocks=$($LFS df $MOUNT | grep $ost_name | awk '{ print $4 }')
+	echo "OST still has $((blocks/1024)) mbytes free"
+
+	local new_lwm=$((blocks/1024-10))
+	do_facet $SINGLEMDS $LCTL set_param \
+			osp.$mdtosc_proc1.reserved_mb_high=$((new_lwm+5))
+	do_facet $SINGLEMDS $LCTL set_param \
+			osp.$mdtosc_proc1.reserved_mb_low=$new_lwm
+
+	test_253_fill_ost $ost_name $mdtosc_proc1 $new_lwm
+
+	#First enospc could execute orphan deletion so repeat.
+	test_253_fill_ost $ost_name $mdtosc_proc1 $new_lwm
+
+	local oa_status=$(do_facet $SINGLEMDS $LCTL get_param -n \
+			osp.$mdtosc_proc1.prealloc_status)
+	echo "prealloc_status $oa_status"
+
+	dd if=/dev/zero of=$DIR/$tdir/2 bs=1M count=1 &&
+		error "File creation should fail"
+	#object allocation was stopped, but we still able to append files
+	dd if=/dev/zero of=$DIR/$tdir/1 bs=1M seek=6 count=5 oflag=append ||
+		error "Append failed"
+	rm -f $DIR/$tdir/1 $DIR/$tdir/0 $DIR/$tdir/r*
+
+	wait_delete_completed
+
+	sleep_maxage
+
+	for i in $(seq 10 12); do
+		dd if=/dev/zero of=$DIR/$tdir/$i bs=1M count=1 2>/dev/null ||
+			error "File creation failed after rm";
+	done
+
+	oa_status=$(do_facet $SINGLEMDS $LCTL get_param -n \
+			osp.$mdtosc_proc1.prealloc_status)
+	echo "prealloc_status $oa_status"
+
+	if (( oa_status != 0 )); then
+		error "Object allocation still disable after rm"
+	fi
+	do_facet $SINGLEMDS $LCTL set_param \
+			osp.$mdtosc_proc1.reserved_mb_high=$last_wm_h
+	do_facet $SINGLEMDS $LCTL set_param \
+			osp.$mdtosc_proc1.reserved_mb_low=$last_wm_l
+
+
+	do_facet mgs $LCTL pool_remove $FSNAME.$TESTNAME $ost_name ||
+		error "Remove $ost_name from pool failed"
+	do_facet mgs $LCTL pool_destroy $FSNAME.$TESTNAME ||
+		error "Pool destroy fialed"
+}
+run_test 253 "Check object allocation limit"
+
 test_254() {
 	local cl_user
 
@@ -13839,6 +14223,241 @@ test_254() {
 }
 run_test 254 "Check changelog size"
 
+ladvise_no_type()
+{
+	local type=$1
+	local file=$2
+
+	lfs ladvise -a invalid $file 2>&1 | grep "Valid types" |
+		awk -F: '{print $2}' | grep $type > /dev/null
+	if [ $? -ne 0 ]; then
+		return 0
+	fi
+	return 1
+}
+
+ladvise_no_ioctl()
+{
+	local file=$1
+
+	lfs ladvise -a willread $file > /dev/null 2>&1
+	if [ $? -eq 0 ]; then
+		return 1
+	fi
+
+	lfs ladvise -a willread $file 2>&1 |
+		grep "Inappropriate ioctl for device" > /dev/null
+	if [ $? -eq 0 ]; then
+		return 0
+	fi
+	return 1
+}
+
+ladvise_willread_performance()
+{
+	local repeat=10
+	local average_cache=0
+	local average_ladvise=0
+
+	for ((i = 1; i <= $repeat; i++)); do
+		echo "Iter $i/$repeat: reading without willread hint"
+		cancel_lru_locks osc
+		do_nodes $(comma_list $(osts_nodes)) \
+			"echo 3 > /proc/sys/vm/drop_caches"
+		local speed_origin=$($READS -f $DIR/$tfile -s $size \
+			-b 4096 -n $((size / 4096)) -t 60 |
+			sed -e '/^$/d' -e 's#.*s, ##' -e 's#MB/s##')
+
+		echo "Iter $i/$repeat: Reading again without willread hint"
+		cancel_lru_locks osc
+		local speed_cache=$($READS -f $DIR/$tfile -s $size \
+			-b 4096 -n $((size / 4096)) -t 60 |
+			sed -e '/^$/d' -e 's#.*s, ##' -e 's#MB/s##')
+
+		echo "Iter $i/$repeat: reading with willread hint"
+		cancel_lru_locks osc
+		do_nodes $(comma_list $(osts_nodes)) \
+			"echo 3 > /proc/sys/vm/drop_caches"
+		lfs ladvise -a willread $DIR/$tfile ||
+			error "Ladvise failed"
+		local speed_ladvise=$($READS -f $DIR/$tfile -s $size \
+			-b 4096 -n $((size / 4096)) -t 60 |
+			sed -e '/^$/d' -e 's#.*s, ##' -e 's#MB/s##')
+
+		local cache_speedup=$(echo "scale=2; \
+			($speed_cache-$speed_origin)/$speed_origin*100" | bc)
+		cache_speedup=$(echo ${cache_speedup%.*})
+		echo "Iter $i/$repeat: cache speedup: $cache_speedup%"
+		average_cache=$((average_cache + cache_speedup))
+
+		local ladvise_speedup=$(echo "scale=2; \
+			($speed_ladvise-$speed_origin)/$speed_origin*100" | bc)
+		ladvise_speedup=$(echo ${ladvise_speedup%.*})
+		echo "Iter $i/$repeat: ladvise speedup: $ladvise_speedup%"
+		average_ladvise=$((average_ladvise + ladvise_speedup))
+	done
+	average_cache=$((average_cache / repeat))
+	average_ladvise=$((average_ladvise / repeat))
+
+	if [ $average_cache -lt 20 ]; then
+		echo "Speedup with cache is less than 20% ($average_cache%),"\
+			"skipping check of speedup with willread:"\
+			"$average_ladvise%"
+		return 0
+	fi
+
+	local lowest_speedup=$((average_cache / 2))
+	[ $average_ladvise -gt $lowest_speedup ] ||
+		error_not_in_vm "Speedup with willread is less than " \
+			   "$lowest_speedup%, got $average_ladvise%"
+	echo "Speedup with willread ladvise: $average_ladvise%"
+	echo "Speedup with cache: $average_cache%"
+}
+
+test_255a() {
+	lfs setstripe -c -1 -i 0 $DIR/$tfile || error "$tfile failed"
+
+	ladvise_no_type willread $DIR/$tfile &&
+		skip "willread ladvise is not supported" && return
+
+	ladvise_no_ioctl $DIR/$tfile &&
+		skip "ladvise ioctl is not supported" && return
+
+	[ $(lustre_version_code ost1) -lt $(version_code 2.8.54) ] &&
+		skip "lustre < 2.8.54 does not support ladvise " && return
+
+	local size_mb=100
+	local size=$((size_mb * 1048576))
+	dd if=/dev/zero of=$DIR/$tfile bs=1048576 count=$size_mb ||
+		error "dd to $DIR/$tfile failed"
+
+	lfs ladvise -a willread $DIR/$tfile ||
+		error "Ladvise failed with no range argument"
+
+	lfs ladvise -a willread -s 0 $DIR/$tfile ||
+		error "Ladvise failed with no -l or -e argument"
+
+	lfs ladvise -a willread -e 1 $DIR/$tfile ||
+		error "Ladvise failed with only -e argument"
+
+	lfs ladvise -a willread -l 1 $DIR/$tfile ||
+		error "Ladvise failed with only -l argument"
+
+	lfs ladvise -a willread -s 2 -e 1 $DIR/$tfile &&
+		error "End offset should not be smaller than start offset"
+
+	lfs ladvise -a willread -s 2 -e 2 $DIR/$tfile &&
+		error "End offset should not be equal to start offset"
+
+	lfs ladvise -a willread -s $size -l 1 $DIR/$tfile ||
+		error "Ladvise failed with overflowing -s argument"
+
+	lfs ladvise -a willread -s 1 -e $((size + 1)) $DIR/$tfile ||
+		error "Ladvise failed with overflowing -e argument"
+
+	lfs ladvise -a willread -s 1 -l $size $DIR/$tfile ||
+		error "Ladvise failed with overflowing -l argument"
+
+	lfs ladvise -a willread -l 1 -e 2 $DIR/$tfile &&
+		error "Ladvise succeeded with conflicting -l and -e arguments"
+
+	echo "Synchronous ladvise should wait"
+	local delay=4
+#define OBD_FAIL_OST_LADVISE_PAUSE	 0x237
+	do_nodes $(comma_list $(osts_nodes)) \
+		$LCTL set_param fail_val=$delay fail_loc=0x237
+
+	local start_ts=$SECONDS
+	lfs ladvise -a willread $DIR/$tfile ||
+		error "Ladvise failed with no range argument"
+	local end_ts=$SECONDS
+	local inteval_ts=$((end_ts - start_ts))
+
+	if [ $inteval_ts -lt $(($delay - 1)) ]; then
+		error "Synchronous advice didn't wait reply"
+	fi
+
+	echo "Asynchronous ladvise shouldn't wait"
+	local start_ts=$SECONDS
+	lfs ladvise -a willread -b $DIR/$tfile ||
+		error "Ladvise failed with no range argument"
+	local end_ts=$SECONDS
+	local inteval_ts=$((end_ts - start_ts))
+
+	if [ $inteval_ts -gt $(($delay / 2)) ]; then
+		error "Asynchronous advice blocked"
+	fi
+
+	do_nodes $(comma_list $(osts_nodes)) $LCTL set_param fail_loc=0
+	ladvise_willread_performance
+}
+run_test 255a "check 'lfs ladvise -a willread'"
+
+facet_meminfo() {
+	local facet=$1
+	local info=$2
+
+	do_facet $facet "cat /proc/meminfo | grep ^${info}:" | awk '{print $2}'
+}
+
+test_255b() {
+	lfs setstripe -c -1 -i 0 $DIR/$tfile
+
+	ladvise_no_type dontneed $DIR/$tfile &&
+		skip "dontneed ladvise is not supported" && return
+
+	ladvise_no_ioctl $DIR/$tfile &&
+		skip "ladvise ioctl is not supported" && return
+
+	[ $(lustre_version_code ost1) -lt $(version_code 2.8.54) ] &&
+		skip "lustre < 2.8.54 does not support ladvise" && return
+
+	[ "$(facet_fstype ost1)" = "zfs" ] &&
+		skip "zfs-osd does not support dontneed advice" && return
+
+	local size_mb=100
+	local size=$((size_mb * 1048576))
+	# In order to prevent disturbance of other processes, only check 3/4
+	# of the memory usage
+	local kibibytes=$((size_mb * 1024 * 3 / 4))
+
+	dd if=/dev/zero of=$DIR/$tfile bs=1048576 count=$size_mb ||
+		error "dd to $DIR/$tfile failed"
+
+	local total=$(facet_meminfo ost1 MemTotal)
+	echo "Total memory: $total KiB"
+
+	do_facet ost1 "sync && echo 3 > /proc/sys/vm/drop_caches"
+	local before_read=$(facet_meminfo ost1 Cached)
+	echo "Cache used before read: $before_read KiB"
+
+	lfs ladvise -a willread $DIR/$tfile ||
+		error "Ladvise willread failed"
+	local after_read=$(facet_meminfo ost1 Cached)
+	echo "Cache used after read: $after_read KiB"
+
+	lfs ladvise -a dontneed $DIR/$tfile ||
+		error "Ladvise dontneed again failed"
+	local no_read=$(facet_meminfo ost1 Cached)
+	echo "Cache used after dontneed ladvise: $no_read KiB"
+
+	if [ $total -lt $((before_read + kibibytes)) ]; then
+		echo "Memory is too small, abort checking"
+		return 0
+	fi
+
+	if [ $((before_read + kibibytes)) -gt $after_read ]; then
+		error "Ladvise willread should use more memory" \
+			"than $kibibytes KiB"
+	fi
+
+	if [ $((no_read + kibibytes)) -gt $after_read ]; then
+		error "Ladvise dontneed should release more memory" \
+			"than $kibibytes KiB"
+	fi
+}
+run_test 255b "check 'lfs ladvise -a dontneed'"
+
 test_256() {
 	local cl_user
 	local cat_sl
@@ -13903,6 +14522,37 @@ test_256() {
 }
 run_test 256 "Check llog delete for empty and not full state"
 
+test_257() {
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
+	[[ $(lustre_version_code $SINGLEMDS) -lt $(version_code 2.8.55) ]] &&
+		skip "Need MDS version at least 2.8.55" && return
+
+	test_mkdir -p $DIR/$tdir
+
+	setfattr -n trusted.name1 -v value1 $DIR/$tdir ||
+		error "setfattr -n trusted.name1=value1 $DIR/$tdir failed"
+	stat $DIR/$tdir
+
+#define OBD_FAIL_MDS_XATTR_REP			0x161
+	local mdtidx=$($LFS getstripe -M $DIR/$tdir)
+	local facet=mds$((mdtidx + 1))
+	set_nodes_failloc $(facet_active_host $facet) 0x80000161
+	getfattr -n trusted.name1 $DIR/$tdir 2> /dev/null
+
+	stop $facet || error "stop MDS failed"
+	start $facet $(mdsdevname $((mdtidx + 1))) $MDS_MOUNT_OPTS ||
+		error "start MDS fail"
+}
+run_test 257 "xattr locks are not lost"
+
+test_260() {
+#define OBD_FAIL_MDC_CLOSE               0x806
+	$LCTL set_param fail_loc=0x80000806
+	touch $DIR/$tfile
+
+}
+run_test 260 "Check mdc_close fail"
+
 cleanup_test_300() {
 	trap 0
 	umask $SAVE_UMASK
@@ -14510,6 +15160,7 @@ run_test 300o "unlink big sub stripe(> 65000 subdirs)"
 test_300p() {
 	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
 	[ $MDSCOUNT -lt 2 ] && skip "needs >= 2 MDTs" && return
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 
 	mkdir -p $DIR/$tdir
 
@@ -14619,6 +15270,196 @@ test_310c() {
 }
 run_test 310c "open-unlink remote file with multiple links"
 
+#LU-4825
+test_311() {
+	[ $(lustre_version_code $SINGLEMDS) -lt $(version_code 2.8.54) ] &&
+		skip "lustre < 2.8.54 does not contain LU-4825 fix" && return
+	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+
+	local old_iused=$($LFS df -i | grep OST0000 | awk '{ print $3 }')
+
+	mkdir -p $DIR/$tdir
+	$SETSTRIPE -i 0 -c 1 $DIR/$tdir
+	createmany -o $DIR/$tdir/$tfile. 1000
+
+	# statfs data is not real time, let's just calculate it
+	old_iused=$((old_iused + 1000))
+
+	local count=$(do_facet $SINGLEMDS "lctl get_param -n \
+			osp.*OST0000*MDT0000.create_count")
+	local max_count=$(do_facet $SINGLEMDS "lctl get_param -n \
+				osp.*OST0000*MDT0000.max_create_count")
+	for idx in $(seq $MDSCOUNT); do
+		do_facet mds$idx "lctl set_param -n \
+			osp.*OST0000*MDT000?.max_create_count=0"
+	done
+
+	$SETSTRIPE -i 0 $DIR/$tdir/$tfile || error "setstripe failed"
+	local index=$($GETSTRIPE -i $DIR/$tdir/$tfile)
+	[ $index -ne 0 ] || error "$tfile stripe index is 0"
+
+	unlinkmany $DIR/$tdir/$tfile. 1000
+
+	for idx in $(seq $MDSCOUNT); do
+		do_facet mds$idx "lctl set_param -n \
+			osp.*OST0000*MDT000?.max_create_count=$max_count"
+		do_facet mds$idx "lctl set_param -n \
+			osp.*OST0000*MDT000?.create_count=$count"
+	done
+
+	local new_iused
+	for i in $(seq 120); do
+		new_iused=$($LFS df -i | grep OST0000 | awk '{ print $3 }')
+		[ $((old_iused - new_iused)) -gt 800 ] && break
+		sleep 1
+	done
+
+	echo "waited $i sec, old Iused $old_iused, new Iused $new_iused"
+	[ $((old_iused - new_iused)) -gt 800 ] ||
+		error "objs not destroyed after unlink"
+}
+run_test 311 "disable OSP precreate, and unlink should destroy objs"
+
+zfs_oid_to_objid()
+{
+	local ost=$1
+	local objid=$2
+
+	local vdevdir=$(dirname $(facet_vdevice $ost))
+	local cmd="$ZDB -e -p $vdevdir -dddd $(facet_device $ost)"
+	local zfs_zapid=$(do_facet $ost $cmd |
+			  grep -w "/O/0/d$((objid%32))" -C 5 |
+			  awk '/Object/{getline; print $1}')
+	local zfs_objid=$(do_facet $ost $cmd $zfs_zapid |
+			  awk "/$objid = /"'{printf $3}')
+
+	echo $zfs_objid
+}
+
+zfs_object_blksz() {
+	local ost=$1
+	local objid=$2
+
+	local vdevdir=$(dirname $(facet_vdevice $ost))
+	local cmd="$ZDB -e -p $vdevdir -dddd $(facet_device $ost)"
+	local blksz=$(do_facet $ost $cmd $objid |
+		      awk '/dblk/{getline; printf $4}')
+
+	case "${blksz: -1}" in
+		k|K) blksz=$((${blksz:0:$((${#blksz} - 1))}*1024)) ;;
+		m|M) blksz=$((${blksz:0:$((${#blksz} - 1))}*1024*1024)) ;;
+		*) ;;
+	esac
+
+	echo $blksz
+}
+
+test_312() { # LU-4856
+	[ $(facet_fstype ost1) = "zfs" ] ||
+		{ skip "the test only applies to zfs" && return; }
+
+	local max_blksz=$(do_facet ost1 \
+			  $ZFS get -p recordsize $(facet_device ost1) |
+			  awk '!/VALUE/{print $3}')
+
+	# to make life a little bit easier
+	$LFS mkdir -c 1 -i 0 $DIR/$tdir
+	$LFS setstripe -c 1 -i 0 $DIR/$tdir
+
+	local tf=$DIR/$tdir/$tfile
+	touch $tf
+	local oid=$($LFS getstripe $tf | awk '/obdidx/{getline; print $2}')
+
+	# Get ZFS object id
+	local zfs_objid=$(zfs_oid_to_objid ost1 $oid)
+
+	# block size change by sequential over write
+	local blksz
+	for ((bs=4096; bs <= max_blksz; bs <<= 2)); do
+		dd if=/dev/zero of=$tf bs=$bs count=1 oflag=sync conv=notrunc
+
+		blksz=$(zfs_object_blksz ost1 $zfs_objid)
+		[ $blksz -eq $bs ] || error "blksz error: $blksz, expected: $bs"
+	done
+	rm -f $tf
+
+	# block size change by sequential append write
+	dd if=/dev/zero of=$tf bs=4K count=1 oflag=sync conv=notrunc
+	oid=$($LFS getstripe $tf | awk '/obdidx/{getline; print $2}')
+	zfs_objid=$(zfs_oid_to_objid ost1 $oid)
+
+	for ((count = 1; count < $((max_blksz / 4096)); count *= 2)); do
+		dd if=/dev/zero of=$tf bs=4K count=$count seek=$count \
+			oflag=sync conv=notrunc
+
+		blksz=$(zfs_object_blksz ost1 $zfs_objid)
+		blksz=$((blksz / 8192)) # in 2*4K unit
+		[ $blksz -eq $count ] ||
+			error "blksz error(in 8k): $blksz, expected: $count"
+	done
+	rm -f $tf
+
+	# random write
+	touch $tf
+	oid=$($LFS getstripe $tf | awk '/obdidx/{getline; print $2}')
+	zfs_objid=$(zfs_oid_to_objid ost1 $oid)
+
+	dd if=/dev/zero of=$tf bs=8K count=1 oflag=sync conv=notrunc
+	blksz=$(zfs_object_blksz ost1 $zfs_objid)
+	[ $blksz -eq 8192 ] || error "blksz error: $blksz, expected: 8k"
+
+	dd if=/dev/zero of=$tf bs=64K count=1 oflag=sync conv=notrunc seek=128
+	blksz=$(zfs_object_blksz ost1 $zfs_objid)
+	[ $blksz -eq 65536 ] || error "blksz error: $blksz, expected: 64k"
+
+	dd if=/dev/zero of=$tf bs=1M count=1 oflag=sync conv=notrunc
+	blksz=$(zfs_object_blksz ost1 $zfs_objid)
+	[ $blksz -eq 65536 ] || error "rewrite error: $blksz, expected: 64k"
+}
+run_test 312 "make sure ZFS adjusts its block size by write pattern"
+
+test_399() { # LU-7655 for OST fake write
+	# turn off debug for performance testing
+	local saved_debug=$($LCTL get_param -n debug)
+	$LCTL set_param debug=0
+
+	$SETSTRIPE -c 1 -i 0 $DIR/$tfile
+
+	# get ost1 size - lustre-OST0000
+	local ost1_avail_size=$($LFS df | awk /${ost1_svc}/'{ print $4 }')
+	local blocks=$((ost1_avail_size/2/1024)) # half avail space by megabytes
+	[ $blocks -gt 1000 ] && blocks=1000 # 1G in maximum
+
+	local start_time=$(date +%s.%N)
+	dd if=/dev/zero of=$DIR/$tfile bs=1M count=$blocks oflag=sync ||
+		error "real dd writing error"
+	local duration=$(bc <<< "$(date +%s.%N) - $start_time")
+	rm -f $DIR/$tfile
+
+	# define OBD_FAIL_OST_FAKE_WRITE	0x238
+	do_facet ost1 $LCTL set_param fail_loc=0x238
+
+	local start_time=$(date +%s.%N)
+	dd if=/dev/zero of=$DIR/$tfile bs=1M count=$blocks oflag=sync ||
+		error "fake dd writing error"
+	local duration_fake=$(bc <<< "$(date +%s.%N) - $start_time")
+
+	# verify file size
+	cancel_lru_locks osc
+	$CHECKSTAT -t file -s $((blocks * 1024 * 1024)) $DIR/$tfile ||
+		error "$tfile size not $blocks MB"
+
+	do_facet ost1 $LCTL set_param fail_loc=0
+
+	echo "fake write $duration_fake vs. normal write $duration in seconds"
+	[ $(bc <<< "$duration_fake < $duration") -eq 1 ] ||
+		error_not_in_vm "fake write is slower"
+
+	$LCTL set_param -n debug="$saved_debug"
+	rm -f $DIR/$tfile
+}
+run_test 399 "fake write should not be slower than normal write"
+
 test_400a() { # LU-1606, was conf-sanity test_74
 	local extra_flags=''
 	local out=$TMP/$tfile
@@ -14679,6 +15520,9 @@ test_400b() { # LU-1606, LU-5011
 run_test 400b "packaged headers can be compiled"
 
 test_401a() { #LU-7437
+	local printf_arg=$(find -printf 2>&1 | grep "unrecognized:")
+	[ -n "$printf_arg" ] && skip_env "find does not support -printf" &&
+		return
 	#count the number of parameters by "list_param -R"
 	local params=$($LCTL list_param -R '*' 2>/dev/null | wc -l)
 	#count the number of parameters by listing proc files
@@ -14768,6 +15612,7 @@ test_401d() {
 run_test 401d "Verify 'lctl set_param' accepts values containing '='"
 
 test_402() {
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	$LFS setdirstripe -i 0 $DIR/$tdir || error "setdirstripe -i 0 failed"
 #define OBD_FAIL_MDS_FLD_LOOKUP 0x15c
 	do_facet mds1 "lctl set_param fail_loc=0x8000015c"
@@ -14806,6 +15651,7 @@ test_403() {
 run_test 403 "i_nlink should not drop to zero due to aliasing"
 
 test_404() { # LU-6601
+	remote_mds_nodsh && skip "remote MDS with nodsh" && return
 	local mosps=$(do_facet $SINGLEMDS $LCTL dl |
 		awk '/osp .*-osc-MDT/ { print $4}')
 
@@ -14831,6 +15677,119 @@ test_404() { # LU-6601
 }
 run_test 404 "validate manual {de}activated works properly for OSPs"
 
+test_405() {
+	[ $(lustre_version_code $SINGLEMDS) -lt $(version_code 2.6.92) ] &&
+		skip "Layout swap lock is not supported" && return
+
+	check_swap_layouts_support && return 0
+
+	test_mkdir -p $DIR/$tdir
+	swap_lock_test -d $DIR/$tdir ||
+		error "One layout swap locked test failed"
+}
+run_test 405 "Various layout swap lock tests"
+
+test_406() {
+	[ $MDSCOUNT -lt 2 ] && skip "needs >= 2 MDTs" && return
+	[ $OSTCOUNT -lt 2 ] && skip "needs >= 2 OSTs" && return
+	[ -n "$FILESET" ] && skip "SKIP due to FILESET set" && return
+	[ $PARALLEL == "yes" ] && skip "skip parallel run" && return
+	[ $(lustre_version_code $SINGLEMDS) -lt $(version_code 2.8.50) ] &&
+		skip "Need MDS version at least 2.8.50" && return
+
+	local def_stripenr=$($GETSTRIPE -c $MOUNT)
+	local def_stripe_size=$($GETSTRIPE -S $MOUNT)
+	local def_stripe_offset=$($GETSTRIPE -i $MOUNT)
+	local def_pool=$($GETSTRIPE -p $MOUNT)
+
+	local test_pool=$TESTNAME
+	pool_add $test_pool || error "pool_add failed"
+	pool_add_targets $test_pool 0 $(($OSTCOUNT - 1)) 1 ||
+		error "pool_add_targets failed"
+
+	# parent set default stripe count only, child will stripe from both
+	# parent and fs default
+	$SETSTRIPE -c 1 -i 1 -S $((def_stripe_size * 2)) -p $test_pool $MOUNT ||
+		error "setstripe $MOUNT failed"
+	$LFS mkdir -c $MDSCOUNT $DIR/$tdir || error "mkdir $tdir failed"
+	$SETSTRIPE -c $OSTCOUNT $DIR/$tdir || error "setstripe $tdir failed"
+	for i in $(seq 10); do
+		local f=$DIR/$tdir/$tfile.$i
+		touch $f || error "touch failed"
+		local count=$($GETSTRIPE -c $f)
+		[ $count -eq $OSTCOUNT ] ||
+			error "$f stripe count $count != $OSTCOUNT"
+		local offset=$($GETSTRIPE -i $f)
+		[ $offset -eq 1 ] || error "$f stripe offset $offset != 1"
+		local size=$($GETSTRIPE -S $f)
+		[ $size -eq $((def_stripe_size * 2)) ] ||
+			error "$f stripe size $size != $((def_stripe_size * 2))"
+		local pool=$($GETSTRIPE -p $f)
+		[ $pool == $test_pool ] || error "$f pool $pool != $test_pool"
+	done
+
+	# change fs default striping, delete parent default striping, now child
+	# will stripe from new fs default striping only
+	$SETSTRIPE -c 1 -S $def_stripe_size -i 0 $MOUNT ||
+		error "change $MOUNT default stripe failed"
+	$SETSTRIPE -c 0 $DIR/$tdir || error "delete $tdir default stripe failed"
+	for i in $(seq 11 20); do
+		local f=$DIR/$tdir/$tfile.$i
+		touch $f || error "touch $f failed"
+		local count=$($GETSTRIPE -c $f)
+		[ $count -eq 1 ] || error "$f stripe count $count != 1"
+		local offset=$($GETSTRIPE -i $f)
+		[ $offset -eq 0 ] || error "$f stripe offset $offset != 0"
+		local size=$($GETSTRIPE -S $f)
+		[ $size -eq $def_stripe_size ] ||
+			error "$f stripe size $size != $def_stripe_size"
+		local pool=$($GETSTRIPE -p $f)
+		[ "#$pool" == "#" ] || error "$f pool $pool is set"
+
+	done
+
+	unlinkmany $DIR/$tdir/$tfile. 1 20
+
+	# restore FS default striping
+	if [ -z $def_pool ]; then
+		$SETSTRIPE -c $def_stripenr -S $def_stripe_size \
+			-i $def_stripe_offset $MOUNT ||
+			error "restore default striping failed"
+	else
+		$SETSTRIPE -c $def_stripenr -S $def_stripe_size -p $def_pool \
+			-i $def_stripe_offset $MOUNT ||
+			error "restore default striping with $def_pool failed"
+	fi
+
+	local f=$DIR/$tdir/$tfile
+	pool_remove_all_targets $test_pool $f
+	pool_remove $test_pool $f
+}
+run_test 406 "DNE support fs default striping"
+
+test_407() {
+	[ $MDSCOUNT -lt 2 ] && skip "needs >= 2 MDTs" && return
+
+	[[ $(lustre_version_code $SINGLEMDS) -lt $(version_code 2.8.55) ]] &&
+		skip "Need MDS version at least 2.8.55" && return
+
+	$LFS mkdir -i 0 -c 1 $DIR/$tdir.0 ||
+		error "$LFS mkdir -i 0 -c 1 $tdir.0 failed"
+	$LFS mkdir -i 1 -c 1 $DIR/$tdir.1 ||
+		error "$LFS mkdir -i 1 -c 1 $tdir.1 failed"
+	touch $DIR/$tdir.0/$tfile.0 || error "touch $tdir.0/$tfile.0 failed"
+
+	#define OBD_FAIL_DT_TXN_STOP	0x2019
+	for idx in $(seq $MDSCOUNT); do
+		do_facet mds$idx "lctl set_param fail_loc=0x2019"
+	done
+	$LFS mkdir -c 2 $DIR/$tdir && error "$LFS mkdir -c 2 $tdir should fail"
+	mv $DIR/$tdir.0/$tfile.0 $DIR/$tdir.1/$tfile.1 &&
+		error "mv $tdir.0/$tfile.0 $tdir.1/$tfile.1 should fail"
+	true
+}
+run_test 407 "transaction fail should cause operation fail"
+
 #
 # tests that do cleanup/setup should be run at the end
 #