mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Xiao Yang
ded188b860
On upstream kernel, running some tests which corrupt XFS on purpose
got the mismatched output. e.g. running xfs/087:
------------------------------------------------
+ check fs
+ corrupt image
+ mount image
-+ modify files
-broken: 1
+ repair fs
+ mount image (2)
------------------------------------------------
It is reasonable for corrupted XFS to be caught and rejected by mount
or read/write operation.
Fixes: 0828657542 ("xfs: fix blocktrash fuzzers")
Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
93 lines
2.4 KiB
Bash
Executable File
93 lines
2.4 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved.
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#
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# FS QA Test No. 337
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#
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# Corrupt the realtime rmapbt and see how the kernel and xfs_repair deal.
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#
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seq=`basename "$0"`
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seqres="$RESULT_DIR/$seq"
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -rf "$tmp".*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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_supported_os Linux
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_supported_fs xfs
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_require_realtime
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_require_xfs_scratch_rmapbt
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_require_test_program "punch-alternating"
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_require_xfs_io_command "falloc"
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_disable_dmesg_check
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rm -f "$seqres.full"
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echo "+ create scratch fs"
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_scratch_mkfs | _filter_mkfs 2>$tmp.mkfs >/dev/null
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. $tmp.mkfs
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cat $tmp.mkfs > "$seqres.full" 2>&1
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echo "+ mount fs image"
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_scratch_mount
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blksz="$(_get_block_size $SCRATCH_MNT)"
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# inode core size is at least 176 bytes; btree header is 56 bytes;
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# rtrmap record is 32 bytes; and rtrmap key/pointer are 56 bytes.
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i_ptrs=$(( (isize - 176) / 56 ))
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bt_ptrs=$(( (blksz - 56) / 56 ))
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bt_recs=$(( (blksz - 56) / 32 ))
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blocks=$((i_ptrs * bt_ptrs * bt_recs + 1))
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_require_fs_space $SCRATCH_MNT $(( (2 * blocks * blksz) * 5 / 4096 ))
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len=$((blocks * blksz))
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echo "+ make some files"
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$XFS_IO_PROG -f -R -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f1 >> $seqres.full
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$XFS_IO_PROG -f -R -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f2 >> $seqres.full
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./src/punch-alternating $SCRATCH_MNT/f1 >> "$seqres.full"
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./src/punch-alternating $SCRATCH_MNT/f2 >> "$seqres.full"
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_scratch_unmount
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echo "+ check fs"
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_scratch_xfs_repair -n >> $seqres.full 2>&1 || echo "xfs_repair should not fail"
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echo "+ corrupt image"
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_scratch_xfs_db -x -c "sb" -c "addr rrmapino" -c "addr u3.rtrmapbt.ptrs[1]" \
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-c "stack" -c "blocktrash -x 4096 -y 4096 -n 8 -3 -z" \
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>> $seqres.full 2>&1
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echo "+ mount image && copy more"
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if _try_scratch_mount >> $seqres.full 2>&1; then
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$XFS_IO_PROG -f -R -c "pwrite -S 0x68 0 1" $SCRATCH_MNT/e3 >> $seqres.full 2>&1
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test -s ${SCRATCH_MNT}/f3 && echo "should not be able to copy with busted rtrmap btree"
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_scratch_unmount
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fi
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echo "+ repair fs"
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_repair_scratch_fs >> $seqres.full 2>&1
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echo "+ mount image (2)"
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_scratch_mount
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echo "+ copy more (2)"
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$XFS_IO_PROG -f -R -c "pwrite -S 0x68 0 1" $SCRATCH_MNT/e4 >> $seqres.full
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# success, all done
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status=0
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exit
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