2016-09-29 19:23:55 -07:00
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#! /bin/bash
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2018-06-09 11:35:45 +10:00
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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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2016-10-08 14:02:04 +08:00
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# FS QA Test No. 341
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2016-09-29 19:23:55 -07:00
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#
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# Cross-link file block into rtrmapbt and see if repair fixes it.
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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 "$tmp".*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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_supported_os Linux
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_supported_fs xfs
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_require_realtime
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_require_xfs_scratch_rmapbt
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_require_test_program "punch-alternating"
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_disable_dmesg_check
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rm -f "$seqres.full"
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echo "Format and mount"
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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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_scratch_mount
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2017-01-04 17:04:48 -08:00
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blksz="$(_get_block_size $SCRATCH_MNT)"
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2016-09-29 19:23:55 -07:00
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# inode core size is at least 176 bytes; btree header is 56 bytes;
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# rtrmap record is 32 bytes; and rtrmap key/pointer are 56 bytes.
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i_ptrs=$(( (isize - 176) / 56 ))
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bt_recs=$(( (blksz - 56) / 32 ))
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blocks=$((i_ptrs * bt_recs + 1))
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len=$((blocks * rtextsz))
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echo "Create some files"
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$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 >> $seqres.full
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2019-10-21 21:35:46 +08:00
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$here/src/punch-alternating $SCRATCH_MNT/f1 >> "$seqres.full"
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$here/src/punch-alternating $SCRATCH_MNT/f2 >> "$seqres.full"
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2016-09-29 19:23:55 -07:00
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echo garbage > $SCRATCH_MNT/f3
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ino=$(stat -c '%i' $SCRATCH_MNT/f3)
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_scratch_unmount
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echo "Corrupt fs"
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fsbno=$(_scratch_xfs_db -c "inode $ino" -c 'bmap' | \
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sed -e 's/^.*startblock \([0-9]*\) .*$/\1/g')
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_scratch_xfs_db -x -c 'sb 0' -c 'addr rrmapino' \
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-c "write u3.rtrmapbt.ptrs[1] $fsbno" -c 'p' >> $seqres.full
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_scratch_mount
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echo "Try to create more files"
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$XFS_IO_PROG -f -R -c "pwrite -S 0x68 0 9999" $SCRATCH_MNT/f5 >> $seqres.full 2>&1
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test -e $SCRATCH_MNT/f5 && echo "should not have been able to write f5"
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echo "Repair fs"
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_scratch_unmount 2>&1 | _filter_scratch
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_repair_scratch_fs >> $seqres.full 2>&1
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echo "Try to create more files (again)"
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_scratch_mount
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$XFS_IO_PROG -f -R -c "pwrite -S 0x68 0 9999" $SCRATCH_MNT/f4 >> $seqres.full
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# success, all done
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status=0
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exit
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