3 # Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
5 # Functions useful for xfs_repair tests
13 # set values for off/len variables provided by db
14 eval `xfs_db -r -c "$struct" -c stack $SCRATCH_DEV | perl -ne '
15 if (/byte offset (\d+), length (\d+)/) {
16 print "offset=$1\nlength=$2\n"; exit
18 if [ -z "$offset" -o -z "$length" ]; then
19 echo "cannot calculate offset ($offset) or length ($length)"
22 length=`expr $length / 512`
23 src/devzero -v $value -b 1 -n $length -o $offset $SCRATCH_DEV \
24 | perl -npe 's/\d\.\d\dKb/X.XXKb/g'
31 /- agno = / && next; # remove each AG line (variable number)
32 s/(pointer to) (\d+)/\1 INO/;
33 s/(sb root inode value) (\d+)( \(NULLFSINO\))?/\1 INO/;
34 s/(realtime bitmap inode) (\d+)( \(NULLFSINO\))?/\1 INO/;
35 s/(realtime summary inode) (\d+)( \(NULLFSINO\))?/\1 INO/;
36 s/(inconsistent with calculated value) (\d+)/\1 INO/;
37 s/\.+(found)/\1/g; # remove "searching" output
39 s/(bad length -{0,1}\d+ for ag. 0, should be) (\d+)/\1 LENGTH/;
40 s/(bad length # -{0,1}\d+ for ag. 0, should be) (\d+)/\1 LENGTH/;
41 s/(bad agbno) (\d+)/\1 AGBNO/g;
42 s/(max =) (\d+)/\1 MAX/g;
44 s/(on inode) (\d+)/\1 INO/g;
45 s/(imap claims a free inode) (\d+)/\1 INO/;
46 s/(imap claims in-use inode) (\d+)/\1 INO/;
47 s/(cleared root inode) (\d+)/\1 INO/;
48 s/(resetting inode) (\d+)/\1 INO/;
49 s/(disconnected dir inode) (\d+)/\1 INO/;
51 s/internal log/<TYPEOF> log/g;
52 s/external log on \S+/<TYPEOF> log/g;
53 # realtime subvol - remove this whole line if it appears
54 s/ - generate realtime summary info and bitmap...\n//g;
60 fgrep -v records # lose records in/out lines
63 # do some controlled corrupting & ensure repair recovers us
69 _zero_position $value "$structure"
70 _scratch_xfs_repair 2>&1 | _filter_repair
71 # some basic sanity checks...
75 dd if=/bin/sh of=$SCRATCH_MNT/sh 2>&1 |_filter_dd #open,write
77 dd if=$SCRATCH_MNT/sh of=/dev/null 2>&1 |_filter_dd #read
78 rm -f $SCRATCH_MNT/sh #unlink
79 umount $SCRATCH_MNT #umount
82 # make sure this script returns success