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1 | /* |
2 | * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. |
4 | * |
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 |
7 | * published by the Free Software Foundation. |
8 | * |
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. |
13 | * |
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 |
17 | */ |
18 | #include "xfs.h" |
19 | #include "xfs_fs.h" |
20 | #include "xfs_types.h" |
21 | #include "xfs_log.h" |
22 | #include "xfs_inum.h" |
23 | #include "xfs_trans.h" |
24 | #include "xfs_sb.h" |
25 | #include "xfs_ag.h" |
26 | #include "xfs_dir2.h" |
27 | #include "xfs_dmapi.h" |
28 | #include "xfs_mount.h" |
29 | #include "xfs_bmap_btree.h" |
30 | #include "xfs_dir2_sf.h" |
31 | #include "xfs_attr_sf.h" |
32 | #include "xfs_dinode.h" |
33 | #include "xfs_inode.h" |
34 | #include "xfs_utils.h" |
35 | #include "xfs_error.h" |
36 | |
37 | #ifdef DEBUG |
38 | |
39 | int xfs_etrap[XFS_ERROR_NTRAP] = { |
40 | 0, |
41 | }; |
42 | |
43 | int |
44 | xfs_error_trap(int e) |
45 | { |
46 | int i; |
47 | |
48 | if (!e) |
49 | return 0; |
50 | for (i = 0; i < XFS_ERROR_NTRAP; i++) { |
51 | if (xfs_etrap[i] == 0) |
52 | break; |
53 | if (e != xfs_etrap[i]) |
54 | continue; |
55 | cmn_err(CE_NOTE, "xfs_error_trap: error %d", e); |
56 | BUG(); |
57 | break; |
58 | } |
59 | return e; |
60 | } |
61 | |
62 | int xfs_etest[XFS_NUM_INJECT_ERROR]; |
63 | int64_t xfs_etest_fsid[XFS_NUM_INJECT_ERROR]; |
64 | char * xfs_etest_fsname[XFS_NUM_INJECT_ERROR]; |
65 | |
66 | int |
67 | xfs_error_test(int error_tag, int *fsidp, char *expression, |
68 | int line, char *file, unsigned long randfactor) |
69 | { |
70 | int i; |
71 | int64_t fsid; |
72 | |
73 | if (random32() % randfactor) |
74 | return 0; |
75 | |
76 | memcpy(&fsid, fsidp, sizeof(xfs_fsid_t)); |
77 | |
78 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { |
79 | if (xfs_etest[i] == error_tag && xfs_etest_fsid[i] == fsid) { |
80 | cmn_err(CE_WARN, |
81 | "Injecting error (%s) at file %s, line %d, on filesystem \"%s\"", |
82 | expression, file, line, xfs_etest_fsname[i]); |
83 | return 1; |
84 | } |
85 | } |
86 | |
87 | return 0; |
88 | } |
89 | |
90 | int |
91 | xfs_errortag_add(int error_tag, xfs_mount_t *mp) |
92 | { |
93 | int i; |
94 | int len; |
95 | int64_t fsid; |
96 | |
97 | memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); |
98 | |
99 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { |
100 | if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) { |
101 | cmn_err(CE_WARN, "XFS error tag #%d on", error_tag); |
102 | return 0; |
103 | } |
104 | } |
105 | |
106 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { |
107 | if (xfs_etest[i] == 0) { |
108 | cmn_err(CE_WARN, "Turned on XFS error tag #%d", |
109 | error_tag); |
110 | xfs_etest[i] = error_tag; |
111 | xfs_etest_fsid[i] = fsid; |
112 | len = strlen(mp->m_fsname); |
113 | xfs_etest_fsname[i] = kmem_alloc(len + 1, KM_SLEEP); |
114 | strcpy(xfs_etest_fsname[i], mp->m_fsname); |
115 | return 0; |
116 | } |
117 | } |
118 | |
119 | cmn_err(CE_WARN, "error tag overflow, too many turned on"); |
120 | |
121 | return 1; |
122 | } |
123 | |
124 | int |
125 | xfs_errortag_clearall(xfs_mount_t *mp, int loud) |
126 | { |
127 | int64_t fsid; |
128 | int cleared = 0; |
129 | int i; |
130 | |
131 | memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); |
132 | |
133 | |
134 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { |
135 | if ((fsid == 0LL || xfs_etest_fsid[i] == fsid) && |
136 | xfs_etest[i] != 0) { |
137 | cleared = 1; |
138 | cmn_err(CE_WARN, "Clearing XFS error tag #%d", |
139 | xfs_etest[i]); |
140 | xfs_etest[i] = 0; |
141 | xfs_etest_fsid[i] = 0LL; |
142 | kmem_free(xfs_etest_fsname[i]); |
143 | xfs_etest_fsname[i] = NULL; |
144 | } |
145 | } |
146 | |
147 | if (loud || cleared) |
148 | cmn_err(CE_WARN, |
149 | "Cleared all XFS error tags for filesystem \"%s\"", |
150 | mp->m_fsname); |
151 | |
152 | return 0; |
153 | } |
154 | #endif /* DEBUG */ |
155 | |
156 | |
157 | void |
158 | xfs_fs_cmn_err(int level, xfs_mount_t *mp, char *fmt, ...) |
159 | { |
160 | va_list ap; |
161 | |
162 | va_start(ap, fmt); |
163 | xfs_fs_vcmn_err(level, mp, fmt, ap); |
164 | va_end(ap); |
165 | } |
166 | |
167 | void |
168 | xfs_cmn_err(int panic_tag, int level, xfs_mount_t *mp, char *fmt, ...) |
169 | { |
170 | va_list ap; |
171 | |
172 | #ifdef DEBUG |
173 | xfs_panic_mask |= XFS_PTAG_SHUTDOWN_CORRUPT; |
174 | #endif |
175 | |
176 | if (xfs_panic_mask && (xfs_panic_mask & panic_tag) |
177 | && (level & CE_ALERT)) { |
178 | level &= ~CE_ALERT; |
179 | level |= CE_PANIC; |
180 | cmn_err(CE_ALERT, "XFS: Transforming an alert into a BUG."); |
181 | } |
182 | va_start(ap, fmt); |
183 | xfs_fs_vcmn_err(level, mp, fmt, ap); |
184 | va_end(ap); |
185 | } |
186 | |
187 | void |
188 | xfs_error_report( |
189 | char *tag, |
190 | int level, |
191 | xfs_mount_t *mp, |
192 | char *fname, |
193 | int linenum, |
194 | inst_t *ra) |
195 | { |
196 | if (level <= xfs_error_level) { |
197 | xfs_cmn_err(XFS_PTAG_ERROR_REPORT, |
198 | CE_ALERT, mp, |
199 | "XFS internal error %s at line %d of file %s. Caller 0x%p\n", |
200 | tag, linenum, fname, ra); |
201 | |
202 | xfs_stack_trace(); |
203 | } |
204 | } |
205 | |
206 | void |
207 | xfs_corruption_error( |
208 | char *tag, |
209 | int level, |
210 | xfs_mount_t *mp, |
211 | void *p, |
212 | char *fname, |
213 | int linenum, |
214 | inst_t *ra) |
215 | { |
216 | if (level <= xfs_error_level) |
217 | xfs_hex_dump(p, 16); |
218 | xfs_error_report(tag, level, mp, fname, linenum, ra); |
219 | } |
220 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
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v3.9