xfs: test allocation group metadata corruption checking and repair

[xfstests-dev.git] / tests / xfs / 088

diff --git a/tests/xfs/088 b/tests/xfs/088
new file mode 100755 (executable)
index 0000000..e171ba9
--- /dev/null
+++ b/tests/xfs/088
@@ -0,0 +1,146 @@
+#! /bin/bash
+# FS QA Test No. 088
+#
+# Create and populate an XFS filesystem, corrupt the AGFL, then see how
+# the kernel and xfs_repair deal with it.
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2015 Oracle, Inc.  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 -f $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/attr
+. ./common/populate
+
+# real QA test starts here
+_supported_fs xfs
+_supported_os Linux
+
+_require_scratch
+test -n "${FORCE_FUZZ}" || _require_scratch_xfs_crc
+_require_attrs
+_require_xfs_db_blocktrash_z_command
+test -z "${FUZZ_ARGS}" && FUZZ_ARGS="-n 8 -3"
+
+rm -f $seqres.full
+TESTDIR="${SCRATCH_MNT}/scratchdir"
+TESTFILE="${TESTDIR}/testfile"
+
+echo "+ create scratch fs"
+_scratch_mkfs_xfs > /dev/null
+
+echo "+ mount fs image"
+_scratch_mount
+blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")"
+
+echo "+ make some files"
+mkdir -p "${TESTDIR}"
+for x in `seq 1 1024`; do
+       touch "${SCRATCH_MNT}/junk.${x}"
+       inode="$(stat -c '%i' "${SCRATCH_MNT}/junk.${x}")"
+       if [ "$x" -gt 512 ] && [ "$((inode % 64))" -eq 0 ]; then
+               mv "${SCRATCH_MNT}/junk.${x}" "${TESTFILE}.1"
+               break
+       fi
+done
+for x in `seq 2 64`; do
+       touch "${TESTFILE}.${x}"
+done
+inode="$(stat -c '%i' "${TESTFILE}.1")"
+agcount="$(xfs_info "${SCRATCH_MNT}" | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')"
+umount "${SCRATCH_MNT}"
+
+echo "+ check fs"
+_scratch_xfs_repair -n >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"
+
+echo "+ corrupt image"
+for ag in $(seq 1 $((agcount - 1))) 0; do
+       $XFS_DB_PROG -x -c "agfl ${ag}" -c "agfl ${ag}" -c "stack" -c "blocktrash -x 32 -o +64 -y 4096 -z ${FUZZ_ARGS}" "${SCRATCH_DEV}" >> $seqres.full 2>&1
+done
+
+# Try to append to files; this should fail
+echo "+ mount image"
+_scratch_mount
+
+echo "+ modify files"
+for x in `seq 1 64`; do
+       $XFS_IO_PROG -f -c "pwrite -S 0x62 0 ${blksz}" "${TESTFILE}.${x}" >> $seqres.full
+done
+umount "${SCRATCH_MNT}"
+
+echo "+ repair fs"
+_scratch_xfs_repair >> $seqres.full 2>&1
+
+echo "+ mount image"
+_scratch_mount
+
+echo "+ chattr -R -i"
+chattr -R -f -i "${SCRATCH_MNT}/"
+
+echo "+ check files"
+broken=0
+for x in `seq 1 64`; do
+       test -s "${TESTFILE}.${x}" || broken=1
+done
+echo "broken: ${broken}"
+
+# Try appending again, now that we've fixed the fs
+echo "+ modify files (2)"
+for x in `seq 1 64`; do
+       $XFS_IO_PROG -f -c "pwrite -S 0x62 ${blksz} ${blksz}" "${TESTFILE}.${x}" >> $seqres.full
+done
+umount "${SCRATCH_MNT}"
+
+echo "+ repair fs"
+_scratch_xfs_repair >> $seqres.full 2>&1
+
+echo "+ mount image"
+_scratch_mount
+
+echo "+ chattr -R -i"
+chattr -R -f -i "${SCRATCH_MNT}/"
+
+echo "+ check files (2)"
+broken=0
+for x in `seq 1 64`; do
+       test -s "${TESTFILE}.${x}" || broken=1
+done
+echo "broken: ${broken}"
+umount "${SCRATCH_MNT}"
+
+echo "+ check fs (2)"
+_scratch_xfs_repair -n >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"
+
+status=0
+exit