Commit | Line | Data |
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1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
7b718769 NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
7b718769 NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 | 17 | */ |
1da177e4 | 18 | #include "xfs.h" |
a4fbe6ab | 19 | #include "xfs_format.h" |
a844f451 | 20 | #include "xfs_fs.h" |
239880ef DC |
21 | #include "xfs_log_format.h" |
22 | #include "xfs_trans_resv.h" | |
1da177e4 | 23 | #include "xfs_mount.h" |
1da177e4 LT |
24 | #include "xfs_error.h" |
25 | ||
26 | #ifdef DEBUG | |
27 | ||
1da177e4 LT |
28 | int xfs_etest[XFS_NUM_INJECT_ERROR]; |
29 | int64_t xfs_etest_fsid[XFS_NUM_INJECT_ERROR]; | |
30 | char * xfs_etest_fsname[XFS_NUM_INJECT_ERROR]; | |
c76febef | 31 | int xfs_error_test_active; |
1da177e4 | 32 | |
1da177e4 LT |
33 | int |
34 | xfs_error_test(int error_tag, int *fsidp, char *expression, | |
35 | int line, char *file, unsigned long randfactor) | |
36 | { | |
37 | int i; | |
38 | int64_t fsid; | |
39 | ||
ecb3403d | 40 | if (prandom_u32() % randfactor) |
1da177e4 LT |
41 | return 0; |
42 | ||
43 | memcpy(&fsid, fsidp, sizeof(xfs_fsid_t)); | |
44 | ||
45 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { | |
46 | if (xfs_etest[i] == error_tag && xfs_etest_fsid[i] == fsid) { | |
0b932ccc | 47 | xfs_warn(NULL, |
1da177e4 LT |
48 | "Injecting error (%s) at file %s, line %d, on filesystem \"%s\"", |
49 | expression, file, line, xfs_etest_fsname[i]); | |
50 | return 1; | |
51 | } | |
52 | } | |
53 | ||
54 | return 0; | |
55 | } | |
56 | ||
57 | int | |
58 | xfs_errortag_add(int error_tag, xfs_mount_t *mp) | |
59 | { | |
60 | int i; | |
61 | int len; | |
62 | int64_t fsid; | |
63 | ||
64 | memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); | |
65 | ||
66 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { | |
67 | if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) { | |
0b932ccc | 68 | xfs_warn(mp, "error tag #%d on", error_tag); |
1da177e4 LT |
69 | return 0; |
70 | } | |
71 | } | |
72 | ||
73 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { | |
74 | if (xfs_etest[i] == 0) { | |
0b932ccc | 75 | xfs_warn(mp, "Turned on XFS error tag #%d", |
1da177e4 LT |
76 | error_tag); |
77 | xfs_etest[i] = error_tag; | |
78 | xfs_etest_fsid[i] = fsid; | |
79 | len = strlen(mp->m_fsname); | |
80 | xfs_etest_fsname[i] = kmem_alloc(len + 1, KM_SLEEP); | |
81 | strcpy(xfs_etest_fsname[i], mp->m_fsname); | |
c76febef | 82 | xfs_error_test_active++; |
1da177e4 LT |
83 | return 0; |
84 | } | |
85 | } | |
86 | ||
0b932ccc | 87 | xfs_warn(mp, "error tag overflow, too many turned on"); |
1da177e4 LT |
88 | |
89 | return 1; | |
90 | } | |
91 | ||
1da177e4 | 92 | int |
0ce4cfd4 | 93 | xfs_errortag_clearall(xfs_mount_t *mp, int loud) |
1da177e4 | 94 | { |
0ce4cfd4 | 95 | int64_t fsid; |
1da177e4 | 96 | int cleared = 0; |
0ce4cfd4 CH |
97 | int i; |
98 | ||
99 | memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); | |
100 | ||
1da177e4 LT |
101 | |
102 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { | |
103 | if ((fsid == 0LL || xfs_etest_fsid[i] == fsid) && | |
104 | xfs_etest[i] != 0) { | |
105 | cleared = 1; | |
0b932ccc | 106 | xfs_warn(mp, "Clearing XFS error tag #%d", |
1da177e4 LT |
107 | xfs_etest[i]); |
108 | xfs_etest[i] = 0; | |
109 | xfs_etest_fsid[i] = 0LL; | |
f0e2d93c | 110 | kmem_free(xfs_etest_fsname[i]); |
1da177e4 | 111 | xfs_etest_fsname[i] = NULL; |
c76febef | 112 | xfs_error_test_active--; |
1da177e4 LT |
113 | } |
114 | } | |
115 | ||
116 | if (loud || cleared) | |
0b932ccc | 117 | xfs_warn(mp, "Cleared all XFS error tags for filesystem"); |
1da177e4 LT |
118 | |
119 | return 0; | |
120 | } | |
1550d0b0 | 121 | #endif /* DEBUG */ |
1da177e4 | 122 | |
1da177e4 LT |
123 | void |
124 | xfs_error_report( | |
a0e856b0 AE |
125 | const char *tag, |
126 | int level, | |
127 | struct xfs_mount *mp, | |
128 | const char *filename, | |
129 | int linenum, | |
fc51c2b5 | 130 | void *ra) |
1da177e4 LT |
131 | { |
132 | if (level <= xfs_error_level) { | |
6a19d939 | 133 | xfs_alert_tag(mp, XFS_PTAG_ERROR_REPORT, |
65dd297a | 134 | "Internal error %s at line %d of file %s. Caller %pS", |
a0e856b0 | 135 | tag, linenum, filename, ra); |
1da177e4 LT |
136 | |
137 | xfs_stack_trace(); | |
138 | } | |
139 | } | |
140 | ||
1da177e4 LT |
141 | void |
142 | xfs_corruption_error( | |
a0e856b0 AE |
143 | const char *tag, |
144 | int level, | |
145 | struct xfs_mount *mp, | |
146 | void *p, | |
147 | const char *filename, | |
148 | int linenum, | |
fc51c2b5 | 149 | void *ra) |
1da177e4 LT |
150 | { |
151 | if (level <= xfs_error_level) | |
a2050646 | 152 | xfs_hex_dump(p, 64); |
a0e856b0 | 153 | xfs_error_report(tag, level, mp, filename, linenum, ra); |
65333b4c | 154 | xfs_alert(mp, "Corruption detected. Unmount and run xfs_repair"); |
1da177e4 | 155 | } |
ca23f8fd ES |
156 | |
157 | /* | |
158 | * Warnings specifically for verifier errors. Differentiate CRC vs. invalid | |
159 | * values, and omit the stack trace unless the error level is tuned high. | |
160 | */ | |
161 | void | |
162 | xfs_verifier_error( | |
163 | struct xfs_buf *bp) | |
164 | { | |
165 | struct xfs_mount *mp = bp->b_target->bt_mount; | |
166 | ||
167 | xfs_alert(mp, "Metadata %s detected at %pF, block 0x%llx", | |
2451337d | 168 | bp->b_error == -EFSBADCRC ? "CRC error" : "corruption", |
ca23f8fd ES |
169 | __return_address, bp->b_bn); |
170 | ||
171 | xfs_alert(mp, "Unmount and run xfs_repair"); | |
172 | ||
173 | if (xfs_error_level >= XFS_ERRLEVEL_LOW) { | |
174 | xfs_alert(mp, "First 64 bytes of corrupted metadata buffer:"); | |
175 | xfs_hex_dump(xfs_buf_offset(bp, 0), 64); | |
176 | } | |
177 | ||
178 | if (xfs_error_level >= XFS_ERRLEVEL_HIGH) | |
179 | xfs_stack_trace(); | |
180 | } |