+cleanup_106() {
+ trap 0
+ umount_client $DIR2
+ debugrestore
+}
+
+test_106() { # LU-1789
+ [[ $(lustre_version_code $SINGLEMDS) -ge $(version_code 2.3.50) ]] ||
+ { skip "Need MDS version at least 2.3.50"; return 0; }
+
+#define OBD_FAIL_MDC_LIGHTWEIGHT 0x805
+ $LCTL set_param fail_loc=0x805
+
+ debugsave
+ trap cleanup_106 EXIT
+
+ # enable lightweight flag on mdc connection
+ mount_client $DIR2
+
+ local MDS_NEXP=$(do_facet $SINGLEMDS \
+ lctl get_param -n mdt.${mds1_svc}.num_exports |
+ cut -d' ' -f2)
+ $LCTL set_param fail_loc=0
+
+ touch $DIR2/$tfile || error "failed to create empty file"
+ replay_barrier $SINGLEMDS
+
+ $LCTL set_param debug=console
+ $LCTL clear
+ facet_failover $SINGLEMDS
+
+ # lightweight connection must be evicted
+ touch -c $DIR2/$tfile || true
+ $LCTL dk $TMP/lustre-log-$TESTNAME.log
+ evicted=`awk '/This client was evicted by .*MDT0000/ {
+ print;
+ }' $TMP/lustre-log-$TESTNAME.log`
+ [ -z "$evicted" ] && error "lightweight client not evicted by mds"
+
+ # and all operations performed by lightweight client should be
+ # synchronous, so the file created before mds restart should be there
+ $CHECKSTAT -t file $DIR/$tfile || error "file not present"
+ rm -f $DIR/$tfile
+
+ cleanup_106
+}
+run_test 106 "lightweight connection support"
+
+test_107 () {
+ local CLIENT_PID
+ local close_pid
+
+ mkdir -p $DIR/$tdir
+ # OBD_FAIL_MDS_REINT_NET_REP 0x119
+ do_facet $SINGLEMDS lctl set_param fail_loc=0x119
+ multiop $DIR/$tdir D_c &
+ close_pid=$!
+ mkdir $DIR/$tdir/dir_106 &
+ CLIENT_PID=$!
+ do_facet $SINGLEMDS lctl set_param fail_loc=0
+ fail $SINGLEMDS
+
+ wait $CLIENT_PID || rc=$?
+ checkstat -t dir $DIR/$tdir/dir_106 || return 1
+
+ kill -USR1 $close_pid
+ wait $close_pid || return 2
+
+ return $rc
+}
+run_test 107 "drop reint reply, then restart MDT"
+
+test_110a () {
+ [ $MDSCOUNT -lt 2 ] && skip "needs >= 2 MDTs" && return 0
+ local remote_dir=$DIR/$tdir/remote_dir
+ local MDTIDX=1
+
+ mkdir -p $DIR/$tdir
+ drop_request "$LFS mkdir -i $MDTIDX $remote_dir" ||
+ error "lfs mkdir failed"
+ local diridx=$($GETSTRIPE -M $remote_dir)
+ [ $diridx -eq $MDTIDX ] || error "$diridx != $MDTIDX"
+
+ rm -rf $DIR/$tdir || error "rmdir failed"
+}
+run_test 110a "create remote directory: drop client req"
+
+test_110b () {
+ [ $MDSCOUNT -lt 2 ] && skip "needs >= 2 MDTs" && return 0
+ local remote_dir=$DIR/$tdir/remote_dir
+ local MDTIDX=1
+
+ mkdir -p $DIR/$tdir
+ drop_reint_reply "$LFS mkdir -i $MDTIDX $remote_dir" ||
+ error "lfs mkdir failed"
+
+ diridx=$($GETSTRIPE -M $remote_dir)
+ [ $diridx -eq $MDTIDX ] || error "$diridx != $MDTIDX"
+
+ rm -rf $DIR/$tdir || error "rmdir failed"
+}
+run_test 110b "create remote directory: drop Master rep"
+
+test_110c () {
+ [ $MDSCOUNT -lt 2 ] && skip "needs >= 2 MDTs" && return 0
+ local remote_dir=$DIR/$tdir/remote_dir
+ local MDTIDX=1
+
+ mkdir -p $DIR/$tdir
+ drop_update_reply $((MDTIDX + 1)) "$LFS mkdir -i $MDTIDX $remote_dir" ||
+ error "lfs mkdir failed"
+
+ diridx=$($GETSTRIPE -M $remote_dir)
+ [ $diridx -eq $MDTIDX ] || error "$diridx != $MDTIDX"
+
+ rm -rf $DIR/$tdir || error "rmdir failed"
+}
+run_test 110c "create remote directory: drop update rep on slave MDT"
+
+test_110d () {
+ [ $MDSCOUNT -lt 2 ] && skip "needs >= 2 MDTs" && return 0
+ local remote_dir=$DIR/$tdir/remote_dir
+ local MDTIDX=1
+
+ mkdir -p $DIR/$tdir
+ $LFS mkdir -i $MDTIDX $remote_dir || error "lfs mkdir failed"
+
+ drop_request "rm -rf $remote_dir" || error "rm remote dir failed"
+
+ rm -rf $DIR/$tdir || error "rmdir failed"
+
+ return 0
+}
+run_test 110d "remove remote directory: drop client req"
+
+test_110e () {
+ [ $MDSCOUNT -lt 2 ] && skip "needs >= 2 MDTs" && return 0
+ local remote_dir=$DIR/$tdir/remote_dir
+ local MDTIDX=1
+
+ mkdir -p $DIR/$tdir
+ $LFS mkdir -i $MDTIDX $remote_dir || error "lfs mkdir failed"
+ drop_reint_reply "rm -rf $remote_dir" || error "rm remote dir failed"
+
+ rm -rf $DIR/$tdir || error "rmdir failed"
+
+ return 0
+}
+run_test 110e "remove remote directory: drop master rep"
+
+test_110f () {
+ [ $MDSCOUNT -lt 2 ] && skip "needs >= 2 MDTs" && return 0
+ local remote_dir=$DIR/$tdir/remote_dir
+ local MDTIDX=1
+
+ mkdir -p $DIR/$tdir
+ $LFS mkdir -i $MDTIDX $remote_dir || error "lfs mkdir failed"
+ drop_update_reply $MDTIDX "rm -rf $remote_dir" ||
+ error "rm remote dir failed"
+
+ rm -rf $DIR/$tdir || error "rmdir failed"
+}
+run_test 110f "remove remote directory: drop slave rep"
+
+# LU-2844 mdt prepare fail should not cause umount oops
+test_111 ()
+{
+ [[ $(lustre_version_code $SINGLEMDS) -ge $(version_code 2.3.62) ]] ||
+ { skip "Need MDS version at least 2.3.62"; return 0; }
+
+ local mdsdev=$(mdsdevname ${SINGLEMDS//mds/})
+#define OBD_FAIL_MDS_CHANGELOG_INIT 0x151
+ do_facet $SINGLEMDS lctl set_param fail_loc=0x151
+ stop $SINGLEMDS || error "stop MDS failed"
+ start $SINGLEMDS $mdsdev && error "start MDS should fail"
+ do_facet $SINGLEMDS lctl set_param fail_loc=0
+ start $SINGLEMDS $mdsdev || error "start MDS failed"
+}
+run_test 111 "mdd setup fail should not cause umount oops"
+
+complete $SECONDS