2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
5 # Functions useful for xfs_repair tests
12 # set values for off/len variables provided by db
13 eval `xfs_db -r -c "$struct" -c stack $SCRATCH_DEV | perl -ne '
14 if (/byte offset (\d+), length (\d+)/) {
15 print "offset=$1\nlength=$2\n"; exit
17 if [ -z "$offset" -o -z "$length" ]; then
18 echo "cannot calculate offset ($offset) or length ($length)"
21 length=`expr $length / 512`
22 $here/src/devzero -v $value -b 1 -n $length -o $offset $SCRATCH_DEV \
23 | perl -npe 's/\d\.\d\dKb/X.XXKb/g'
30 /- agno = / && next; # remove each AG line (variable number)
31 s/(pointer to) (\d+)/\1 INO/;
32 s/(sb root inode value) (\d+)( \(NULLFSINO\))?/\1 INO/;
33 s/(realtime bitmap inode) (\d+)( \(NULLFSINO\))?/\1 INO/;
34 s/(realtime summary inode) (\d+)( \(NULLFSINO\))?/\1 INO/;
35 s/(inconsistent with calculated value) (\d+)/\1 INO/;
36 s/\.+(found)/\1/g; # remove "searching" output
38 s/(bad length -{0,1}\d+ for ag. 0, should be) (\d+)/\1 LENGTH/;
39 s/(bad length # -{0,1}\d+ for ag. 0, should be) (\d+)/\1 LENGTH/;
40 s/(bad agbno) (\d+)/\1 AGBNO/g;
41 s/(max =) (\d+)/\1 MAX/g;
43 s/(on inode) (\d+)/\1 INO/g;
44 s/(imap claims a free inode) (\d+)/\1 INO/;
45 s/(imap claims in-use inode) (\d+)/\1 INO/;
46 s/(cleared root inode) (\d+)/\1 INO/;
47 s/(resetting inode) (\d+)/\1 INO/;
48 s/(disconnected dir inode) (\d+)/\1 INO/;
50 s/internal log/<TYPEOF> log/g;
51 s/external log on \S+/<TYPEOF> log/g;
52 # realtime subvol - remove this whole line if it appears
53 s/ - generate realtime summary info and bitmap...\n//g;
55 # new xfs repair output filters
57 s/\s+- creating \d+ worker thread\(s\)\n//g;
58 s/\s+- reporting progress in intervals of \d+ minutes\n//g;
59 s/\s+- \d+:\d\d:\d\d:.*\n//g;
60 # 3.1.0 extra accounting output
61 /^agf_/ && next; # remove agf counts
62 /^agi_/ && next; # remove agi counts
63 /^sb_/ && next; # remove sb counts
64 /^agi unlinked/ && next; # remove agi unlinked bucket warning
65 # crc enabled filesystem output
66 /XFS_CORRUPTION_ERROR/ && next;
68 /^Metadata corruption detected/ && next;
69 /^Metadata CRC error detected/ && next;
70 /^agfl has bad CRC/ && next;
71 /^bad CRC for inode/ && next;
72 # finobt enabled filesystem output
73 s/(inode chunk) (\d+)\/(\d+)/AGNO\/INO/;
74 # sunit/swidth reset messages
75 s/^(Note - .*) were copied.*/\1 fields have been reset./;
76 s/^(Please) reset (with .*) if necessary/\1 set \2/;
77 # And make them generic so we dont depend on geometry
78 s/(stripe unit) \(.*\) (and width) \(.*\)/\1 (SU) \2 (SW)/;
80 s/(superblock) (\d+)/\1 AGNO/;
81 s/(AG \#)(\d+)/\1AGNO/;
82 s/(reset bad sb for ag) (\d+)/\1 AGNO/;
83 s/(unknown block state, ag )(\d+)(, block )(\d+)/\1AGNO\3AGBNO/;
84 /^Note - quota info will be regenerated on next quota mount.$/ && next;
88 # Filter out unknown block state messages that appear when rmap is enabled
89 # and we erase a btree root pointer (such that repair never finds the
90 # tree and fails to reconcile the metadata reverse mappings against the
92 _filter_repair_lostblocks() {
93 _filter_repair | sed -e '/unknown block state, ag AGNO, block AGBNO/d'
98 fgrep -v records # lose records in/out lines
101 # do some controlled corrupting & ensure repair recovers us
108 #ensure the filesystem has been dirtied since last repair
110 POSIXLY_CORRECT=yes \
111 dd if=/bin/bash of=$SCRATCH_MNT/sh 2>&1 |_filter_dd
113 rm -f $SCRATCH_MNT/sh
116 _zero_position $value "$structure"
117 _scratch_xfs_repair 2>&1 | _filter_repair
119 # some basic sanity checks...
121 _scratch_mount #mount
122 POSIXLY_CORRECT=yes \
123 dd if=/bin/bash of=$SCRATCH_MNT/sh 2>&1 |_filter_dd #open,write
124 POSIXLY_CORRECT=yes \
125 dd if=$SCRATCH_MNT/sh of=/dev/null 2>&1 |_filter_dd #read
126 rm -f $SCRATCH_MNT/sh #unlink
127 _scratch_unmount #umount
130 # make sure this script returns success