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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_trans.h"
23#include "xfs_sb.h"
24#include "xfs_ag.h"
25#include "xfs_mount.h"
26#include "xfs_bmap_btree.h"
27#include "xfs_dinode.h"
28#include "xfs_inode.h"
29#include "xfs_utils.h"
30#include "xfs_error.h"
31
32#ifdef DEBUG
33
34int xfs_etrap[XFS_ERROR_NTRAP] = {
35 0,
36};
37
38int
39xfs_error_trap(int e)
40{
41 int i;
42
43 if (!e)
44 return 0;
45 for (i = 0; i < XFS_ERROR_NTRAP; i++) {
46 if (xfs_etrap[i] == 0)
47 break;
48 if (e != xfs_etrap[i])
49 continue;
50 xfs_notice(NULL, "%s: error %d", __func__, e);
51 BUG();
52 break;
53 }
54 return e;
55}
56
57int xfs_etest[XFS_NUM_INJECT_ERROR];
58int64_t xfs_etest_fsid[XFS_NUM_INJECT_ERROR];
59char * xfs_etest_fsname[XFS_NUM_INJECT_ERROR];
60int xfs_error_test_active;
61
62int
63xfs_error_test(int error_tag, int *fsidp, char *expression,
64 int line, char *file, unsigned long randfactor)
65{
66 int i;
67 int64_t fsid;
68
69 if (random32() % randfactor)
70 return 0;
71
72 memcpy(&fsid, fsidp, sizeof(xfs_fsid_t));
73
74 for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
75 if (xfs_etest[i] == error_tag && xfs_etest_fsid[i] == fsid) {
76 xfs_warn(NULL,
77 "Injecting error (%s) at file %s, line %d, on filesystem \"%s\"",
78 expression, file, line, xfs_etest_fsname[i]);
79 return 1;
80 }
81 }
82
83 return 0;
84}
85
86int
87xfs_errortag_add(int error_tag, xfs_mount_t *mp)
88{
89 int i;
90 int len;
91 int64_t fsid;
92
93 memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t));
94
95 for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
96 if (xfs_etest_fsid[i] == fsid && xfs_etest[i] == error_tag) {
97 xfs_warn(mp, "error tag #%d on", error_tag);
98 return 0;
99 }
100 }
101
102 for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
103 if (xfs_etest[i] == 0) {
104 xfs_warn(mp, "Turned on XFS error tag #%d",
105 error_tag);
106 xfs_etest[i] = error_tag;
107 xfs_etest_fsid[i] = fsid;
108 len = strlen(mp->m_fsname);
109 xfs_etest_fsname[i] = kmem_alloc(len + 1, KM_SLEEP);
110 strcpy(xfs_etest_fsname[i], mp->m_fsname);
111 xfs_error_test_active++;
112 return 0;
113 }
114 }
115
116 xfs_warn(mp, "error tag overflow, too many turned on");
117
118 return 1;
119}
120
121int
122xfs_errortag_clearall(xfs_mount_t *mp, int loud)
123{
124 int64_t fsid;
125 int cleared = 0;
126 int i;
127
128 memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t));
129
130
131 for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) {
132 if ((fsid == 0LL || xfs_etest_fsid[i] == fsid) &&
133 xfs_etest[i] != 0) {
134 cleared = 1;
135 xfs_warn(mp, "Clearing XFS error tag #%d",
136 xfs_etest[i]);
137 xfs_etest[i] = 0;
138 xfs_etest_fsid[i] = 0LL;
139 kmem_free(xfs_etest_fsname[i]);
140 xfs_etest_fsname[i] = NULL;
141 xfs_error_test_active--;
142 }
143 }
144
145 if (loud || cleared)
146 xfs_warn(mp, "Cleared all XFS error tags for filesystem");
147
148 return 0;
149}
150#endif /* DEBUG */
151
152void
153xfs_error_report(
154 const char *tag,
155 int level,
156 struct xfs_mount *mp,
157 const char *filename,
158 int linenum,
159 inst_t *ra)
160{
161 if (level <= xfs_error_level) {
162 xfs_alert_tag(mp, XFS_PTAG_ERROR_REPORT,
163 "Internal error %s at line %d of file %s. Caller 0x%p\n",
164 tag, linenum, filename, ra);
165
166 xfs_stack_trace();
167 }
168}
169
170void
171xfs_corruption_error(
172 const char *tag,
173 int level,
174 struct xfs_mount *mp,
175 void *p,
176 const char *filename,
177 int linenum,
178 inst_t *ra)
179{
180 if (level <= xfs_error_level)
181 xfs_hex_dump(p, 16);
182 xfs_error_report(tag, level, mp, filename, linenum, ra);
183 xfs_alert(mp, "Corruption detected. Unmount and run xfs_repair");
184}
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
4 * All Rights Reserved.
5 */
6#include "xfs.h"
7#include "xfs_shared.h"
8#include "xfs_format.h"
9#include "xfs_fs.h"
10#include "xfs_log_format.h"
11#include "xfs_trans_resv.h"
12#include "xfs_mount.h"
13#include "xfs_errortag.h"
14#include "xfs_error.h"
15#include "xfs_sysfs.h"
16#include "xfs_inode.h"
17
18#ifdef DEBUG
19
20static unsigned int xfs_errortag_random_default[] = {
21 XFS_RANDOM_DEFAULT,
22 XFS_RANDOM_IFLUSH_1,
23 XFS_RANDOM_IFLUSH_2,
24 XFS_RANDOM_IFLUSH_3,
25 XFS_RANDOM_IFLUSH_4,
26 XFS_RANDOM_IFLUSH_5,
27 XFS_RANDOM_IFLUSH_6,
28 XFS_RANDOM_DA_READ_BUF,
29 XFS_RANDOM_BTREE_CHECK_LBLOCK,
30 XFS_RANDOM_BTREE_CHECK_SBLOCK,
31 XFS_RANDOM_ALLOC_READ_AGF,
32 XFS_RANDOM_IALLOC_READ_AGI,
33 XFS_RANDOM_ITOBP_INOTOBP,
34 XFS_RANDOM_IUNLINK,
35 XFS_RANDOM_IUNLINK_REMOVE,
36 XFS_RANDOM_DIR_INO_VALIDATE,
37 XFS_RANDOM_BULKSTAT_READ_CHUNK,
38 XFS_RANDOM_IODONE_IOERR,
39 XFS_RANDOM_STRATREAD_IOERR,
40 XFS_RANDOM_STRATCMPL_IOERR,
41 XFS_RANDOM_DIOWRITE_IOERR,
42 XFS_RANDOM_BMAPIFORMAT,
43 XFS_RANDOM_FREE_EXTENT,
44 XFS_RANDOM_RMAP_FINISH_ONE,
45 XFS_RANDOM_REFCOUNT_CONTINUE_UPDATE,
46 XFS_RANDOM_REFCOUNT_FINISH_ONE,
47 XFS_RANDOM_BMAP_FINISH_ONE,
48 XFS_RANDOM_AG_RESV_CRITICAL,
49 XFS_RANDOM_DROP_WRITES,
50 XFS_RANDOM_LOG_BAD_CRC,
51 XFS_RANDOM_LOG_ITEM_PIN,
52 XFS_RANDOM_BUF_LRU_REF,
53 XFS_RANDOM_FORCE_SCRUB_REPAIR,
54 XFS_RANDOM_FORCE_SUMMARY_RECALC,
55 XFS_RANDOM_IUNLINK_FALLBACK,
56};
57
58struct xfs_errortag_attr {
59 struct attribute attr;
60 unsigned int tag;
61};
62
63static inline struct xfs_errortag_attr *
64to_attr(struct attribute *attr)
65{
66 return container_of(attr, struct xfs_errortag_attr, attr);
67}
68
69static inline struct xfs_mount *
70to_mp(struct kobject *kobject)
71{
72 struct xfs_kobj *kobj = to_kobj(kobject);
73
74 return container_of(kobj, struct xfs_mount, m_errortag_kobj);
75}
76
77STATIC ssize_t
78xfs_errortag_attr_store(
79 struct kobject *kobject,
80 struct attribute *attr,
81 const char *buf,
82 size_t count)
83{
84 struct xfs_mount *mp = to_mp(kobject);
85 struct xfs_errortag_attr *xfs_attr = to_attr(attr);
86 int ret;
87 unsigned int val;
88
89 if (strcmp(buf, "default") == 0) {
90 val = xfs_errortag_random_default[xfs_attr->tag];
91 } else {
92 ret = kstrtouint(buf, 0, &val);
93 if (ret)
94 return ret;
95 }
96
97 ret = xfs_errortag_set(mp, xfs_attr->tag, val);
98 if (ret)
99 return ret;
100 return count;
101}
102
103STATIC ssize_t
104xfs_errortag_attr_show(
105 struct kobject *kobject,
106 struct attribute *attr,
107 char *buf)
108{
109 struct xfs_mount *mp = to_mp(kobject);
110 struct xfs_errortag_attr *xfs_attr = to_attr(attr);
111
112 return snprintf(buf, PAGE_SIZE, "%u\n",
113 xfs_errortag_get(mp, xfs_attr->tag));
114}
115
116static const struct sysfs_ops xfs_errortag_sysfs_ops = {
117 .show = xfs_errortag_attr_show,
118 .store = xfs_errortag_attr_store,
119};
120
121#define XFS_ERRORTAG_ATTR_RW(_name, _tag) \
122static struct xfs_errortag_attr xfs_errortag_attr_##_name = { \
123 .attr = {.name = __stringify(_name), \
124 .mode = VERIFY_OCTAL_PERMISSIONS(S_IWUSR | S_IRUGO) }, \
125 .tag = (_tag), \
126}
127
128#define XFS_ERRORTAG_ATTR_LIST(_name) &xfs_errortag_attr_##_name.attr
129
130XFS_ERRORTAG_ATTR_RW(noerror, XFS_ERRTAG_NOERROR);
131XFS_ERRORTAG_ATTR_RW(iflush1, XFS_ERRTAG_IFLUSH_1);
132XFS_ERRORTAG_ATTR_RW(iflush2, XFS_ERRTAG_IFLUSH_2);
133XFS_ERRORTAG_ATTR_RW(iflush3, XFS_ERRTAG_IFLUSH_3);
134XFS_ERRORTAG_ATTR_RW(iflush4, XFS_ERRTAG_IFLUSH_4);
135XFS_ERRORTAG_ATTR_RW(iflush5, XFS_ERRTAG_IFLUSH_5);
136XFS_ERRORTAG_ATTR_RW(iflush6, XFS_ERRTAG_IFLUSH_6);
137XFS_ERRORTAG_ATTR_RW(dareadbuf, XFS_ERRTAG_DA_READ_BUF);
138XFS_ERRORTAG_ATTR_RW(btree_chk_lblk, XFS_ERRTAG_BTREE_CHECK_LBLOCK);
139XFS_ERRORTAG_ATTR_RW(btree_chk_sblk, XFS_ERRTAG_BTREE_CHECK_SBLOCK);
140XFS_ERRORTAG_ATTR_RW(readagf, XFS_ERRTAG_ALLOC_READ_AGF);
141XFS_ERRORTAG_ATTR_RW(readagi, XFS_ERRTAG_IALLOC_READ_AGI);
142XFS_ERRORTAG_ATTR_RW(itobp, XFS_ERRTAG_ITOBP_INOTOBP);
143XFS_ERRORTAG_ATTR_RW(iunlink, XFS_ERRTAG_IUNLINK);
144XFS_ERRORTAG_ATTR_RW(iunlinkrm, XFS_ERRTAG_IUNLINK_REMOVE);
145XFS_ERRORTAG_ATTR_RW(dirinovalid, XFS_ERRTAG_DIR_INO_VALIDATE);
146XFS_ERRORTAG_ATTR_RW(bulkstat, XFS_ERRTAG_BULKSTAT_READ_CHUNK);
147XFS_ERRORTAG_ATTR_RW(logiodone, XFS_ERRTAG_IODONE_IOERR);
148XFS_ERRORTAG_ATTR_RW(stratread, XFS_ERRTAG_STRATREAD_IOERR);
149XFS_ERRORTAG_ATTR_RW(stratcmpl, XFS_ERRTAG_STRATCMPL_IOERR);
150XFS_ERRORTAG_ATTR_RW(diowrite, XFS_ERRTAG_DIOWRITE_IOERR);
151XFS_ERRORTAG_ATTR_RW(bmapifmt, XFS_ERRTAG_BMAPIFORMAT);
152XFS_ERRORTAG_ATTR_RW(free_extent, XFS_ERRTAG_FREE_EXTENT);
153XFS_ERRORTAG_ATTR_RW(rmap_finish_one, XFS_ERRTAG_RMAP_FINISH_ONE);
154XFS_ERRORTAG_ATTR_RW(refcount_continue_update, XFS_ERRTAG_REFCOUNT_CONTINUE_UPDATE);
155XFS_ERRORTAG_ATTR_RW(refcount_finish_one, XFS_ERRTAG_REFCOUNT_FINISH_ONE);
156XFS_ERRORTAG_ATTR_RW(bmap_finish_one, XFS_ERRTAG_BMAP_FINISH_ONE);
157XFS_ERRORTAG_ATTR_RW(ag_resv_critical, XFS_ERRTAG_AG_RESV_CRITICAL);
158XFS_ERRORTAG_ATTR_RW(drop_writes, XFS_ERRTAG_DROP_WRITES);
159XFS_ERRORTAG_ATTR_RW(log_bad_crc, XFS_ERRTAG_LOG_BAD_CRC);
160XFS_ERRORTAG_ATTR_RW(log_item_pin, XFS_ERRTAG_LOG_ITEM_PIN);
161XFS_ERRORTAG_ATTR_RW(buf_lru_ref, XFS_ERRTAG_BUF_LRU_REF);
162XFS_ERRORTAG_ATTR_RW(force_repair, XFS_ERRTAG_FORCE_SCRUB_REPAIR);
163XFS_ERRORTAG_ATTR_RW(bad_summary, XFS_ERRTAG_FORCE_SUMMARY_RECALC);
164XFS_ERRORTAG_ATTR_RW(iunlink_fallback, XFS_ERRTAG_IUNLINK_FALLBACK);
165
166static struct attribute *xfs_errortag_attrs[] = {
167 XFS_ERRORTAG_ATTR_LIST(noerror),
168 XFS_ERRORTAG_ATTR_LIST(iflush1),
169 XFS_ERRORTAG_ATTR_LIST(iflush2),
170 XFS_ERRORTAG_ATTR_LIST(iflush3),
171 XFS_ERRORTAG_ATTR_LIST(iflush4),
172 XFS_ERRORTAG_ATTR_LIST(iflush5),
173 XFS_ERRORTAG_ATTR_LIST(iflush6),
174 XFS_ERRORTAG_ATTR_LIST(dareadbuf),
175 XFS_ERRORTAG_ATTR_LIST(btree_chk_lblk),
176 XFS_ERRORTAG_ATTR_LIST(btree_chk_sblk),
177 XFS_ERRORTAG_ATTR_LIST(readagf),
178 XFS_ERRORTAG_ATTR_LIST(readagi),
179 XFS_ERRORTAG_ATTR_LIST(itobp),
180 XFS_ERRORTAG_ATTR_LIST(iunlink),
181 XFS_ERRORTAG_ATTR_LIST(iunlinkrm),
182 XFS_ERRORTAG_ATTR_LIST(dirinovalid),
183 XFS_ERRORTAG_ATTR_LIST(bulkstat),
184 XFS_ERRORTAG_ATTR_LIST(logiodone),
185 XFS_ERRORTAG_ATTR_LIST(stratread),
186 XFS_ERRORTAG_ATTR_LIST(stratcmpl),
187 XFS_ERRORTAG_ATTR_LIST(diowrite),
188 XFS_ERRORTAG_ATTR_LIST(bmapifmt),
189 XFS_ERRORTAG_ATTR_LIST(free_extent),
190 XFS_ERRORTAG_ATTR_LIST(rmap_finish_one),
191 XFS_ERRORTAG_ATTR_LIST(refcount_continue_update),
192 XFS_ERRORTAG_ATTR_LIST(refcount_finish_one),
193 XFS_ERRORTAG_ATTR_LIST(bmap_finish_one),
194 XFS_ERRORTAG_ATTR_LIST(ag_resv_critical),
195 XFS_ERRORTAG_ATTR_LIST(drop_writes),
196 XFS_ERRORTAG_ATTR_LIST(log_bad_crc),
197 XFS_ERRORTAG_ATTR_LIST(log_item_pin),
198 XFS_ERRORTAG_ATTR_LIST(buf_lru_ref),
199 XFS_ERRORTAG_ATTR_LIST(force_repair),
200 XFS_ERRORTAG_ATTR_LIST(bad_summary),
201 XFS_ERRORTAG_ATTR_LIST(iunlink_fallback),
202 NULL,
203};
204
205static struct kobj_type xfs_errortag_ktype = {
206 .release = xfs_sysfs_release,
207 .sysfs_ops = &xfs_errortag_sysfs_ops,
208 .default_attrs = xfs_errortag_attrs,
209};
210
211int
212xfs_errortag_init(
213 struct xfs_mount *mp)
214{
215 mp->m_errortag = kmem_zalloc(sizeof(unsigned int) * XFS_ERRTAG_MAX,
216 KM_MAYFAIL);
217 if (!mp->m_errortag)
218 return -ENOMEM;
219
220 return xfs_sysfs_init(&mp->m_errortag_kobj, &xfs_errortag_ktype,
221 &mp->m_kobj, "errortag");
222}
223
224void
225xfs_errortag_del(
226 struct xfs_mount *mp)
227{
228 xfs_sysfs_del(&mp->m_errortag_kobj);
229 kmem_free(mp->m_errortag);
230}
231
232bool
233xfs_errortag_test(
234 struct xfs_mount *mp,
235 const char *expression,
236 const char *file,
237 int line,
238 unsigned int error_tag)
239{
240 unsigned int randfactor;
241
242 /*
243 * To be able to use error injection anywhere, we need to ensure error
244 * injection mechanism is already initialized.
245 *
246 * Code paths like I/O completion can be called before the
247 * initialization is complete, but be able to inject errors in such
248 * places is still useful.
249 */
250 if (!mp->m_errortag)
251 return false;
252
253 ASSERT(error_tag < XFS_ERRTAG_MAX);
254 randfactor = mp->m_errortag[error_tag];
255 if (!randfactor || prandom_u32() % randfactor)
256 return false;
257
258 xfs_warn_ratelimited(mp,
259"Injecting error (%s) at file %s, line %d, on filesystem \"%s\"",
260 expression, file, line, mp->m_fsname);
261 return true;
262}
263
264int
265xfs_errortag_get(
266 struct xfs_mount *mp,
267 unsigned int error_tag)
268{
269 if (error_tag >= XFS_ERRTAG_MAX)
270 return -EINVAL;
271
272 return mp->m_errortag[error_tag];
273}
274
275int
276xfs_errortag_set(
277 struct xfs_mount *mp,
278 unsigned int error_tag,
279 unsigned int tag_value)
280{
281 if (error_tag >= XFS_ERRTAG_MAX)
282 return -EINVAL;
283
284 mp->m_errortag[error_tag] = tag_value;
285 return 0;
286}
287
288int
289xfs_errortag_add(
290 struct xfs_mount *mp,
291 unsigned int error_tag)
292{
293 if (error_tag >= XFS_ERRTAG_MAX)
294 return -EINVAL;
295
296 return xfs_errortag_set(mp, error_tag,
297 xfs_errortag_random_default[error_tag]);
298}
299
300int
301xfs_errortag_clearall(
302 struct xfs_mount *mp)
303{
304 memset(mp->m_errortag, 0, sizeof(unsigned int) * XFS_ERRTAG_MAX);
305 return 0;
306}
307#endif /* DEBUG */
308
309void
310xfs_error_report(
311 const char *tag,
312 int level,
313 struct xfs_mount *mp,
314 const char *filename,
315 int linenum,
316 xfs_failaddr_t failaddr)
317{
318 if (level <= xfs_error_level) {
319 xfs_alert_tag(mp, XFS_PTAG_ERROR_REPORT,
320 "Internal error %s at line %d of file %s. Caller %pS",
321 tag, linenum, filename, failaddr);
322
323 xfs_stack_trace();
324 }
325}
326
327void
328xfs_corruption_error(
329 const char *tag,
330 int level,
331 struct xfs_mount *mp,
332 void *buf,
333 size_t bufsize,
334 const char *filename,
335 int linenum,
336 xfs_failaddr_t failaddr)
337{
338 if (level <= xfs_error_level)
339 xfs_hex_dump(buf, bufsize);
340 xfs_error_report(tag, level, mp, filename, linenum, failaddr);
341 xfs_alert(mp, "Corruption detected. Unmount and run xfs_repair");
342}
343
344/*
345 * Warnings specifically for verifier errors. Differentiate CRC vs. invalid
346 * values, and omit the stack trace unless the error level is tuned high.
347 */
348void
349xfs_buf_verifier_error(
350 struct xfs_buf *bp,
351 int error,
352 const char *name,
353 void *buf,
354 size_t bufsz,
355 xfs_failaddr_t failaddr)
356{
357 struct xfs_mount *mp = bp->b_mount;
358 xfs_failaddr_t fa;
359 int sz;
360
361 fa = failaddr ? failaddr : __return_address;
362 __xfs_buf_ioerror(bp, error, fa);
363
364 xfs_alert_tag(mp, XFS_PTAG_VERIFIER_ERROR,
365 "Metadata %s detected at %pS, %s block 0x%llx %s",
366 bp->b_error == -EFSBADCRC ? "CRC error" : "corruption",
367 fa, bp->b_ops->name, bp->b_bn, name);
368
369 xfs_alert(mp, "Unmount and run xfs_repair");
370
371 if (xfs_error_level >= XFS_ERRLEVEL_LOW) {
372 sz = min_t(size_t, XFS_CORRUPTION_DUMP_LEN, bufsz);
373 xfs_alert(mp, "First %d bytes of corrupted metadata buffer:",
374 sz);
375 xfs_hex_dump(buf, sz);
376 }
377
378 if (xfs_error_level >= XFS_ERRLEVEL_HIGH)
379 xfs_stack_trace();
380}
381
382/*
383 * Warnings specifically for verifier errors. Differentiate CRC vs. invalid
384 * values, and omit the stack trace unless the error level is tuned high.
385 */
386void
387xfs_verifier_error(
388 struct xfs_buf *bp,
389 int error,
390 xfs_failaddr_t failaddr)
391{
392 return xfs_buf_verifier_error(bp, error, "", xfs_buf_offset(bp, 0),
393 XFS_CORRUPTION_DUMP_LEN, failaddr);
394}
395
396/*
397 * Warnings for inode corruption problems. Don't bother with the stack
398 * trace unless the error level is turned up high.
399 */
400void
401xfs_inode_verifier_error(
402 struct xfs_inode *ip,
403 int error,
404 const char *name,
405 void *buf,
406 size_t bufsz,
407 xfs_failaddr_t failaddr)
408{
409 struct xfs_mount *mp = ip->i_mount;
410 xfs_failaddr_t fa;
411 int sz;
412
413 fa = failaddr ? failaddr : __return_address;
414
415 xfs_alert(mp, "Metadata %s detected at %pS, inode 0x%llx %s",
416 error == -EFSBADCRC ? "CRC error" : "corruption",
417 fa, ip->i_ino, name);
418
419 xfs_alert(mp, "Unmount and run xfs_repair");
420
421 if (buf && xfs_error_level >= XFS_ERRLEVEL_LOW) {
422 sz = min_t(size_t, XFS_CORRUPTION_DUMP_LEN, bufsz);
423 xfs_alert(mp, "First %d bytes of corrupted metadata buffer:",
424 sz);
425 xfs_hex_dump(buf, sz);
426 }
427
428 if (xfs_error_level >= XFS_ERRLEVEL_HIGH)
429 xfs_stack_trace();
430}