do_facet $SINGLEMDS "lctl set_param fail_loc=0x115"
clear_failloc $SINGLEMDS $((TIMEOUT * 2)) &
multiop_bg_pause $DIR/$tfile OS_c || return 1
do_facet $SINGLEMDS "lctl set_param fail_loc=0x115"
clear_failloc $SINGLEMDS $((TIMEOUT * 2)) &
multiop_bg_pause $DIR/$tfile OS_c || return 1