4 # Create and populate an XFS filesystem, corrupt the bmbt, then see how
5 # the kernel and xfs_repair deal with it.
7 #-----------------------------------------------------------------------
8 # Copyright (c) 2015 Oracle, Inc. All Rights Reserved.
10 # This program is free software; you can redistribute it and/or
11 # modify it under the terms of the GNU General Public License as
12 # published by the Free Software Foundation.
14 # This program is distributed in the hope that it would be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program; if not, write the Free Software Foundation,
21 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #-----------------------------------------------------------------------
26 seqres=$RESULT_DIR/$seq
27 echo "QA output created by $seq"
31 status=1 # failure is the default!
32 trap "_cleanup; exit \$status" 0 1 2 3 15
40 # get standard environment, filters and checks
46 # real QA test starts here
51 test -n "${FORCE_FUZZ}" || _require_scratch_xfs_crc
53 _require_xfs_db_blocktrash_z_command
54 test -z "${FUZZ_ARGS}" && FUZZ_ARGS="-n 8 -3"
58 echo "+ create scratch fs"
59 _scratch_mkfs_xfs > /dev/null
61 echo "+ mount fs image"
63 blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")"
64 nr="$((blksz * 2 / 16))"
66 echo "+ make some files"
67 $XFS_IO_PROG -f -c "pwrite -S 0x62 0 $((blksz * nr))" -c 'fsync' "${SCRATCH_MNT}/bigfile" >> $seqres.full
68 for i in $(seq 1 2 ${nr}); do
69 $XFS_IO_PROG -f -c "fpunch $((i * blksz)) ${blksz}" "${SCRATCH_MNT}/bigfile" >> $seqres.full
71 inode="$(stat -c '%i' "${SCRATCH_MNT}/bigfile")"
72 umount "${SCRATCH_MNT}"
75 _scratch_xfs_repair -n >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"
77 echo "+ corrupt image"
78 $XFS_DB_PROG -x -c "inode ${inode}" -c "addr u.bmbt.ptrs[1]" -c "addr u3.bmbt.ptrs[1]" -c "stack" -c "blocktrash -x 32 -y $((blksz * 8)) -z ${FUZZ_ARGS}" "${SCRATCH_DEV}" >> $seqres.full
84 before="$(stat -c '%b' "${SCRATCH_MNT}/bigfile")"
85 $XFS_IO_PROG -f -c "pwrite -S 0x62 ${blksz} ${blksz}" -c 'fsync' "${SCRATCH_MNT}/bigfile" >> $seqres.full 2> /dev/null
86 after="$(stat -c '%b' "${SCRATCH_MNT}/bigfile")"
87 test "${before}" -eq "${after}" || _fail "pwrite should fail on corrupt bmbt"
88 umount "${SCRATCH_MNT}"
91 _scratch_xfs_repair >> $seqres.full 2>&1
93 echo "+ mount image (2)"
97 chattr -R -f -i "${SCRATCH_MNT}/"
99 echo "+ modify files (2)"
100 touch "${SCRATCH_MNT}/bigfile"
101 before="$(stat -c '%b' "${SCRATCH_MNT}/bigfile")"
102 $XFS_IO_PROG -f -c "pwrite -S 0x62 ${blksz} ${blksz}" -c 'fsync' "${SCRATCH_MNT}/bigfile" >> $seqres.full 2> /dev/null
103 after="$(stat -c '%b' "${SCRATCH_MNT}/bigfile")"
104 test "${before}" -ne "${after}" || _fail "pwrite failed after fixing corrupt bmbt"
105 umount "${SCRATCH_MNT}"
107 echo "+ check fs (2)"
108 _scratch_xfs_repair -n >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"