blob: 285bcf65512594b55c1575c2cdbbe09c07441f91 (
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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
#!/bin/bash
#
# loop through all of our bad images and make sure fsck repairs them properly
#
# It's GPL, same as everything else in this tree.
#
here=`pwd`
TEST_DEV=
TEST_MNT=
RESULT="fsck-tests-results.txt"
_fail()
{
echo "$*" | tee -a $RESULT
exit 1
}
run_check()
{
echo "############### $@" >> $RESULT 2>&1
"$@" >> $RESULT 2>&1 || _fail "failed: $@"
}
rm -f $RESULT
# test rely on corrupting blocks tool
run_check make btrfs-corrupt-block
# Some broken filesystem images are kept as .img files, created by the tool
# btrfs-image, and others are kept as .tar.xz files that contain raw filesystem
# image (the backing file of a loop device, as a sparse file). The reason for
# keeping some as tarballs of raw images is that for these cases btrfs-image
# isn't able to preserve all the (bad) filesystem structure for some reason.
for i in $(find $here/tests/fsck-tests -name '*.img' -o -name '*.tar.xz' | sort)
do
echo " [TEST] $(basename $i)"
echo "testing image $i" >> $RESULT
extension=${i#*.}
if [ $extension == "img" ]; then
run_check $here/btrfs-image -r $i test.img
else
run_check tar xJf $i
fi
$here/btrfs check test.img >> $RESULT 2>&1
[ $? -eq 0 ] && _fail "btrfs check should have detected corruption"
run_check $here/btrfs check --repair test.img
run_check $here/btrfs check test.img
done
if [ -z $TEST_DEV ] || [ -z $TEST_MNT ];then
echo " [NOTRUN] extent tree rebuild"
exit 0
fi
# test whether fsck can rebuild a corrupted extent tree
test_extent_tree_rebuild()
{
echo " [TEST] extent tree rebuild"
$here/mkfs.btrfs -f $TEST_DEV >> /dev/null 2>&1 || _fail "fail to mkfs"
run_check mount $TEST_DEV $TEST_MNT
cp -aR /lib/modules/`uname -r`/ $TEST_MNT 2>&1
for i in `seq 1 100`;do
$here/btrfs sub snapshot $TEST_MNT \
$TEST_MNT/snapaaaaaaa_$i >& /dev/null
done
run_check umount $TEST_DEV
# get extent root bytenr
extent_root_bytenr=`$here/btrfs-debug-tree -r $TEST_DEV | grep extent | awk '{print $7}'`
if [ -z $extent_root_bytenr ];then
_fail "fail to get extent root bytenr"
fi
# corrupt extent root node block
run_check $here/btrfs-corrupt-block -l $extent_root_bytenr \
-b 4096 $TEST_DEV
$here/btrfs check $TEST_DEV >& /dev/null && \
_fail "btrfs check should detect failure"
run_check $here/btrfs check --init-extent-tree $TEST_DEV
run_check $here/btrfs check $TEST_DEV
}
test_extent_tree_rebuild
|
