--- /dev/null
+#! /bin/bash
+# FS QA Test No. 058
+#
+# Ensure that xfs_db fuzz command works as advertised.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2017, Oracle and/or its affiliates. All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#-----------------------------------------------------------------------
+
+seq=`basename "$0"`
+seqres="$RESULT_DIR/$seq"
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1 # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -rf "$tmp".*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/fuzzy
+
+# real QA test starts here
+_supported_os Linux
+_supported_fs xfs
+_require_scratch_nocheck
+_require_command "$XFS_DB_PROG" "xfs_db"
+_require_xfs_db_command "fuzz"
+
+rm -f "$seqres.full"
+
+echo "Format"
+_scratch_mkfs | _filter_mkfs 2>$tmp.mkfs >> "$seqres.full"
+source $tmp.mkfs
+
+do_xfs_db()
+{
+ local cmd=$1
+ if [ $_fs_has_crcs -eq 0 ]; then
+ echo "Allowing $cmd of corrupted data with good CRC"
+ fi
+ _scratch_xfs_db -x -c 'sb 0' -c "$*"
+}
+
+# Make sure that each fuzz verb works. For the firstbit/middlebit/lastbit
+# tests, we depend on 'ones' having set the field to all ones.
+field="fdblocks"
+do_xfs_db write -d ${field} 0
+SCRATCH_XFS_LIST_FUZZ_VERBS= _scratch_xfs_list_fuzz_verbs | while read verb; do
+ test "${verb}" = "random" && continue
+ echo "Test verb ${verb}"
+ do_xfs_db fuzz -d ${field} ${verb}
+done
+
+echo "Test verb random"
+before="$(_scratch_xfs_get_metadata_field "${field}" 'sb 0')"
+do_xfs_db fuzz -d ${field} random >> $seqres.full
+after="$(_scratch_xfs_get_metadata_field "${field}" 'sb 0')"
+test "${before}" != "${after}" && echo "${field} changed"
+
+echo "Done"
+# success, all done
+status=0
+exit
--- /dev/null
+QA output created by 058
+Format
+Allowing write of corrupted data with good CRC
+fdblocks = 0
+Test verb zeroes
+Allowing fuzz of corrupted data with good CRC
+fdblocks = 0
+Test verb ones
+Allowing fuzz of corrupted data with good CRC
+fdblocks = 18446744073709551615
+Test verb firstbit
+Allowing fuzz of corrupted data with good CRC
+fdblocks = 9223372036854775807
+Test verb middlebit
+Allowing fuzz of corrupted data with good CRC
+fdblocks = 9223372034707292159
+Test verb lastbit
+Allowing fuzz of corrupted data with good CRC
+fdblocks = 9223372034707292158
+Test verb add
+Allowing fuzz of corrupted data with good CRC
+fdblocks = 9223372034707294175
+Test verb sub
+Allowing fuzz of corrupted data with good CRC
+fdblocks = 9223372034707292158
+Test verb random
+fdblocks changed
+Done