| #! /bin/bash |
| # FS QA Test No. 337 |
| # |
| # Corrupt the realtime rmapbt and see how the kernel and xfs_repair deal. |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2016, 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 "$tmp".* |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| |
| # real QA test starts here |
| _supported_os Linux |
| _supported_fs xfs |
| _require_realtime |
| _require_xfs_scratch_rmapbt |
| _require_test_program "punch-alternating" |
| _require_xfs_io_command "falloc" |
| _disable_dmesg_check |
| |
| rm -f "$seqres.full" |
| |
| echo "+ create scratch fs" |
| _scratch_mkfs | _filter_mkfs 2>$tmp.mkfs >/dev/null |
| . $tmp.mkfs |
| cat $tmp.mkfs > "$seqres.full" 2>&1 |
| |
| echo "+ mount fs image" |
| _scratch_mount |
| blksz="$(_get_block_size $SCRATCH_MNT)" |
| |
| # inode core size is at least 176 bytes; btree header is 56 bytes; |
| # rtrmap record is 32 bytes; and rtrmap key/pointer are 56 bytes. |
| i_ptrs=$(( (isize - 176) / 56 )) |
| bt_ptrs=$(( (blksz - 56) / 56 )) |
| bt_recs=$(( (blksz - 56) / 32 )) |
| |
| blocks=$((i_ptrs * bt_ptrs * bt_recs + 1)) |
| _require_fs_space $SCRATCH_MNT $(( (2 * blocks * blksz) * 5 / 4096 )) |
| len=$((blocks * blksz)) |
| |
| echo "+ make some files" |
| $XFS_IO_PROG -f -R -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f1 >> $seqres.full |
| $XFS_IO_PROG -f -R -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f2 >> $seqres.full |
| ./src/punch-alternating $SCRATCH_MNT/f1 >> "$seqres.full" |
| ./src/punch-alternating $SCRATCH_MNT/f2 >> "$seqres.full" |
| _scratch_unmount |
| |
| echo "+ check fs" |
| _scratch_xfs_repair -n >> $seqres.full 2>&1 || echo "xfs_repair should not fail" |
| |
| echo "+ corrupt image" |
| _scratch_xfs_db -x -c "sb" -c "addr rrmapino" -c "addr u3.rtrmapbt.ptrs[1]" \ |
| -c "stack" -c "blocktrash -x 4096 -y 4096 -n 8 -3 -z" \ |
| >> $seqres.full 2>&1 |
| |
| echo "+ mount image" |
| if _try_scratch_mount >> $seqres.full 2>&1; then |
| |
| echo "+ copy more" |
| $XFS_IO_PROG -f -R -c "pwrite -S 0x68 0 1" $SCRATCH_MNT/e3 >> $seqres.full 2>&1 |
| test -s ${SCRATCH_MNT}/f3 && echo "should not be able to copy with busted rtrmap btree" |
| _scratch_unmount |
| fi |
| |
| echo "+ repair fs" |
| _repair_scratch_fs >> $seqres.full 2>&1 |
| |
| echo "+ mount image (2)" |
| _scratch_mount |
| |
| echo "+ copy more (2)" |
| $XFS_IO_PROG -f -R -c "pwrite -S 0x68 0 1" $SCRATCH_MNT/e4 >> $seqres.full |
| |
| # success, all done |
| status=0 |
| exit |