blob: ce8c1bfae332bbcab7f6ef833d9fc9680d396a9e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2014 Filipe Manana. All Rights Reserved.
#
# FS QA Test No. btrfs/034
#
# Test for a btrfs incremental send data corruption issue due to
# bad detection of file holes.
#
. ./common/preamble
_begin_fstest auto quick send prealloc
tmp=`mktemp -d`
# Override the default cleanup function.
_cleanup()
{
rm -fr $tmp
}
. ./common/filter
_supported_fs btrfs
_require_scratch
_require_xfs_io_command "falloc"
_scratch_mkfs >/dev/null 2>&1
_scratch_mount
# Create a file such that its file extent items span at least 3 btree leafs.
# This is necessary to trigger a btrfs incremental send bug where file hole
# detection was not correct, leading to data corruption by overriding latest
# data regions of a file with zeroes.
$XFS_IO_PROG -f -c "truncate 104857600" $SCRATCH_MNT/foo
for ((i = 0; i < 940; i++))
do
OFFSET=$((32768 + i * 8192))
LEN=$((OFFSET + 8192))
$XFS_IO_PROG -c "falloc -k $OFFSET $LEN" $SCRATCH_MNT/foo
$XFS_IO_PROG -c "pwrite -S 0xf0 $OFFSET 4096" \
$SCRATCH_MNT/foo | _filter_xfs_io
done
_btrfs subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1
$XFS_IO_PROG -c "truncate 3882008" $SCRATCH_MNT/foo
_btrfs subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2
_btrfs send -f $tmp/1.snap $SCRATCH_MNT/mysnap1
_btrfs send -f $tmp/2.snap -p $SCRATCH_MNT/mysnap1 \
$SCRATCH_MNT/mysnap2
md5sum $SCRATCH_MNT/foo | _filter_scratch
md5sum $SCRATCH_MNT/mysnap1/foo | _filter_scratch
md5sum $SCRATCH_MNT/mysnap2/foo | _filter_scratch
_scratch_unmount
_check_btrfs_filesystem $SCRATCH_DEV
_scratch_mkfs >/dev/null 2>&1
_scratch_mount
_btrfs receive -f $tmp/1.snap $SCRATCH_MNT
md5sum $SCRATCH_MNT/mysnap1/foo | _filter_scratch
_btrfs receive -f $tmp/2.snap $SCRATCH_MNT
md5sum $SCRATCH_MNT/mysnap2/foo | _filter_scratch
_scratch_unmount
_check_btrfs_filesystem $SCRATCH_DEV
status=0
exit
|
