| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # FS QA Test No. 341 |
| # |
| # Cross-link file block into rtrmapbt and see if repair fixes it. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick rmap realtime |
| |
| # Import common functions. |
| . ./common/filter |
| |
| # real QA test starts here |
| _supported_fs xfs |
| _require_realtime |
| _require_xfs_scratch_rmapbt |
| _require_test_program "punch-alternating" |
| _disable_dmesg_check |
| _require_xfs_io_command "falloc" |
| |
| rm -f "$seqres.full" |
| |
| echo "Format and mount" |
| _scratch_mkfs | _filter_mkfs 2>$tmp.mkfs >/dev/null |
| . $tmp.mkfs |
| cat $tmp.mkfs > "$seqres.full" 2>&1 |
| _scratch_mount |
| blksz="$(_get_block_size $SCRATCH_MNT)" |
| |
| rtextsz_blks=$((rtextsz / blksz)) |
| |
| # 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=$(( (isize - 176) / 56 )) |
| bt_recs=$(( (blksz - 56) / 32 )) |
| |
| blocks=$((i_ptrs * bt_recs + 1)) |
| len=$((blocks * rtextsz)) |
| |
| echo "Create 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 |
| $here/src/punch-alternating -i $((2 * rtextsz_blks)) -s $rtextsz_blks $SCRATCH_MNT/f1 >> "$seqres.full" |
| $here/src/punch-alternating -i $((2 * rtextsz_blks)) -s $rtextsz_blks $SCRATCH_MNT/f2 >> "$seqres.full" |
| echo garbage > $SCRATCH_MNT/f3 |
| ino=$(stat -c '%i' $SCRATCH_MNT/f3) |
| _scratch_unmount |
| |
| echo "Corrupt fs" |
| fsbno=$(_scratch_xfs_db -c "inode $ino" -c 'bmap' | grep 'flag 0' | head -n 1 | \ |
| sed -e 's/^.*startblock \([0-9]*\) .*$/\1/g') |
| |
| _scratch_xfs_db -x -c 'sb 0' -c 'addr rrmapino' \ |
| -c "write u3.rtrmapbt.ptrs[1] $fsbno" -c 'p' >> $seqres.full |
| _scratch_mount |
| |
| echo "Try to create more files" |
| $XFS_IO_PROG -f -R -c "pwrite -S 0x68 0 9999" $SCRATCH_MNT/f5 >> $seqres.full 2>&1 |
| test -e $SCRATCH_MNT/f5 && echo "should not have been able to write f5" |
| |
| echo "Repair fs" |
| _scratch_unmount 2>&1 | _filter_scratch |
| _repair_scratch_fs >> $seqres.full 2>&1 |
| |
| echo "Try to create more files (again)" |
| _scratch_mount |
| $XFS_IO_PROG -f -R -c "pwrite -S 0x68 0 9999" $SCRATCH_MNT/f4 >> $seqres.full |
| |
| # success, all done |
| status=0 |
| exit |
