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
20 static 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 0, /* XFS_RANDOM_DROP_WRITES has been removed */
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 XFS_RANDOM_BUF_IOERROR,
57 XFS_RANDOM_REDUCE_MAX_IEXTENTS,
58 XFS_RANDOM_BMAP_ALLOC_MINLEN_EXTENT,
59 XFS_RANDOM_AG_RESV_FAIL,
60 XFS_RANDOM_LARP,
61 XFS_RANDOM_DA_LEAF_SPLIT,
62 XFS_RANDOM_ATTR_LEAF_TO_NODE,
63 XFS_RANDOM_WB_DELAY_MS,
64 XFS_RANDOM_WRITE_DELAY_MS,
65 };
66
67 struct xfs_errortag_attr {
68 struct attribute attr;
69 unsigned int tag;
70 };
71
72 static inline struct xfs_errortag_attr *
to_attr(struct attribute * attr)73 to_attr(struct attribute *attr)
74 {
75 return container_of(attr, struct xfs_errortag_attr, attr);
76 }
77
78 static inline struct xfs_mount *
to_mp(struct kobject * kobject)79 to_mp(struct kobject *kobject)
80 {
81 struct xfs_kobj *kobj = to_kobj(kobject);
82
83 return container_of(kobj, struct xfs_mount, m_errortag_kobj);
84 }
85
86 STATIC ssize_t
xfs_errortag_attr_store(struct kobject * kobject,struct attribute * attr,const char * buf,size_t count)87 xfs_errortag_attr_store(
88 struct kobject *kobject,
89 struct attribute *attr,
90 const char *buf,
91 size_t count)
92 {
93 struct xfs_mount *mp = to_mp(kobject);
94 struct xfs_errortag_attr *xfs_attr = to_attr(attr);
95 int ret;
96 unsigned int val;
97
98 if (strcmp(buf, "default") == 0) {
99 val = xfs_errortag_random_default[xfs_attr->tag];
100 } else {
101 ret = kstrtouint(buf, 0, &val);
102 if (ret)
103 return ret;
104 }
105
106 ret = xfs_errortag_set(mp, xfs_attr->tag, val);
107 if (ret)
108 return ret;
109 return count;
110 }
111
112 STATIC ssize_t
xfs_errortag_attr_show(struct kobject * kobject,struct attribute * attr,char * buf)113 xfs_errortag_attr_show(
114 struct kobject *kobject,
115 struct attribute *attr,
116 char *buf)
117 {
118 struct xfs_mount *mp = to_mp(kobject);
119 struct xfs_errortag_attr *xfs_attr = to_attr(attr);
120
121 return snprintf(buf, PAGE_SIZE, "%u\n",
122 xfs_errortag_get(mp, xfs_attr->tag));
123 }
124
125 static const struct sysfs_ops xfs_errortag_sysfs_ops = {
126 .show = xfs_errortag_attr_show,
127 .store = xfs_errortag_attr_store,
128 };
129
130 #define XFS_ERRORTAG_ATTR_RW(_name, _tag) \
131 static struct xfs_errortag_attr xfs_errortag_attr_##_name = { \
132 .attr = {.name = __stringify(_name), \
133 .mode = VERIFY_OCTAL_PERMISSIONS(S_IWUSR | S_IRUGO) }, \
134 .tag = (_tag), \
135 }
136
137 #define XFS_ERRORTAG_ATTR_LIST(_name) &xfs_errortag_attr_##_name.attr
138
139 XFS_ERRORTAG_ATTR_RW(noerror, XFS_ERRTAG_NOERROR);
140 XFS_ERRORTAG_ATTR_RW(iflush1, XFS_ERRTAG_IFLUSH_1);
141 XFS_ERRORTAG_ATTR_RW(iflush2, XFS_ERRTAG_IFLUSH_2);
142 XFS_ERRORTAG_ATTR_RW(iflush3, XFS_ERRTAG_IFLUSH_3);
143 XFS_ERRORTAG_ATTR_RW(iflush4, XFS_ERRTAG_IFLUSH_4);
144 XFS_ERRORTAG_ATTR_RW(iflush5, XFS_ERRTAG_IFLUSH_5);
145 XFS_ERRORTAG_ATTR_RW(iflush6, XFS_ERRTAG_IFLUSH_6);
146 XFS_ERRORTAG_ATTR_RW(dareadbuf, XFS_ERRTAG_DA_READ_BUF);
147 XFS_ERRORTAG_ATTR_RW(btree_chk_lblk, XFS_ERRTAG_BTREE_CHECK_LBLOCK);
148 XFS_ERRORTAG_ATTR_RW(btree_chk_sblk, XFS_ERRTAG_BTREE_CHECK_SBLOCK);
149 XFS_ERRORTAG_ATTR_RW(readagf, XFS_ERRTAG_ALLOC_READ_AGF);
150 XFS_ERRORTAG_ATTR_RW(readagi, XFS_ERRTAG_IALLOC_READ_AGI);
151 XFS_ERRORTAG_ATTR_RW(itobp, XFS_ERRTAG_ITOBP_INOTOBP);
152 XFS_ERRORTAG_ATTR_RW(iunlink, XFS_ERRTAG_IUNLINK);
153 XFS_ERRORTAG_ATTR_RW(iunlinkrm, XFS_ERRTAG_IUNLINK_REMOVE);
154 XFS_ERRORTAG_ATTR_RW(dirinovalid, XFS_ERRTAG_DIR_INO_VALIDATE);
155 XFS_ERRORTAG_ATTR_RW(bulkstat, XFS_ERRTAG_BULKSTAT_READ_CHUNK);
156 XFS_ERRORTAG_ATTR_RW(logiodone, XFS_ERRTAG_IODONE_IOERR);
157 XFS_ERRORTAG_ATTR_RW(stratread, XFS_ERRTAG_STRATREAD_IOERR);
158 XFS_ERRORTAG_ATTR_RW(stratcmpl, XFS_ERRTAG_STRATCMPL_IOERR);
159 XFS_ERRORTAG_ATTR_RW(diowrite, XFS_ERRTAG_DIOWRITE_IOERR);
160 XFS_ERRORTAG_ATTR_RW(bmapifmt, XFS_ERRTAG_BMAPIFORMAT);
161 XFS_ERRORTAG_ATTR_RW(free_extent, XFS_ERRTAG_FREE_EXTENT);
162 XFS_ERRORTAG_ATTR_RW(rmap_finish_one, XFS_ERRTAG_RMAP_FINISH_ONE);
163 XFS_ERRORTAG_ATTR_RW(refcount_continue_update, XFS_ERRTAG_REFCOUNT_CONTINUE_UPDATE);
164 XFS_ERRORTAG_ATTR_RW(refcount_finish_one, XFS_ERRTAG_REFCOUNT_FINISH_ONE);
165 XFS_ERRORTAG_ATTR_RW(bmap_finish_one, XFS_ERRTAG_BMAP_FINISH_ONE);
166 XFS_ERRORTAG_ATTR_RW(ag_resv_critical, XFS_ERRTAG_AG_RESV_CRITICAL);
167 XFS_ERRORTAG_ATTR_RW(log_bad_crc, XFS_ERRTAG_LOG_BAD_CRC);
168 XFS_ERRORTAG_ATTR_RW(log_item_pin, XFS_ERRTAG_LOG_ITEM_PIN);
169 XFS_ERRORTAG_ATTR_RW(buf_lru_ref, XFS_ERRTAG_BUF_LRU_REF);
170 XFS_ERRORTAG_ATTR_RW(force_repair, XFS_ERRTAG_FORCE_SCRUB_REPAIR);
171 XFS_ERRORTAG_ATTR_RW(bad_summary, XFS_ERRTAG_FORCE_SUMMARY_RECALC);
172 XFS_ERRORTAG_ATTR_RW(iunlink_fallback, XFS_ERRTAG_IUNLINK_FALLBACK);
173 XFS_ERRORTAG_ATTR_RW(buf_ioerror, XFS_ERRTAG_BUF_IOERROR);
174 XFS_ERRORTAG_ATTR_RW(reduce_max_iextents, XFS_ERRTAG_REDUCE_MAX_IEXTENTS);
175 XFS_ERRORTAG_ATTR_RW(bmap_alloc_minlen_extent, XFS_ERRTAG_BMAP_ALLOC_MINLEN_EXTENT);
176 XFS_ERRORTAG_ATTR_RW(ag_resv_fail, XFS_ERRTAG_AG_RESV_FAIL);
177 XFS_ERRORTAG_ATTR_RW(larp, XFS_ERRTAG_LARP);
178 XFS_ERRORTAG_ATTR_RW(da_leaf_split, XFS_ERRTAG_DA_LEAF_SPLIT);
179 XFS_ERRORTAG_ATTR_RW(attr_leaf_to_node, XFS_ERRTAG_ATTR_LEAF_TO_NODE);
180 XFS_ERRORTAG_ATTR_RW(wb_delay_ms, XFS_ERRTAG_WB_DELAY_MS);
181 XFS_ERRORTAG_ATTR_RW(write_delay_ms, XFS_ERRTAG_WRITE_DELAY_MS);
182
183 static struct attribute *xfs_errortag_attrs[] = {
184 XFS_ERRORTAG_ATTR_LIST(noerror),
185 XFS_ERRORTAG_ATTR_LIST(iflush1),
186 XFS_ERRORTAG_ATTR_LIST(iflush2),
187 XFS_ERRORTAG_ATTR_LIST(iflush3),
188 XFS_ERRORTAG_ATTR_LIST(iflush4),
189 XFS_ERRORTAG_ATTR_LIST(iflush5),
190 XFS_ERRORTAG_ATTR_LIST(iflush6),
191 XFS_ERRORTAG_ATTR_LIST(dareadbuf),
192 XFS_ERRORTAG_ATTR_LIST(btree_chk_lblk),
193 XFS_ERRORTAG_ATTR_LIST(btree_chk_sblk),
194 XFS_ERRORTAG_ATTR_LIST(readagf),
195 XFS_ERRORTAG_ATTR_LIST(readagi),
196 XFS_ERRORTAG_ATTR_LIST(itobp),
197 XFS_ERRORTAG_ATTR_LIST(iunlink),
198 XFS_ERRORTAG_ATTR_LIST(iunlinkrm),
199 XFS_ERRORTAG_ATTR_LIST(dirinovalid),
200 XFS_ERRORTAG_ATTR_LIST(bulkstat),
201 XFS_ERRORTAG_ATTR_LIST(logiodone),
202 XFS_ERRORTAG_ATTR_LIST(stratread),
203 XFS_ERRORTAG_ATTR_LIST(stratcmpl),
204 XFS_ERRORTAG_ATTR_LIST(diowrite),
205 XFS_ERRORTAG_ATTR_LIST(bmapifmt),
206 XFS_ERRORTAG_ATTR_LIST(free_extent),
207 XFS_ERRORTAG_ATTR_LIST(rmap_finish_one),
208 XFS_ERRORTAG_ATTR_LIST(refcount_continue_update),
209 XFS_ERRORTAG_ATTR_LIST(refcount_finish_one),
210 XFS_ERRORTAG_ATTR_LIST(bmap_finish_one),
211 XFS_ERRORTAG_ATTR_LIST(ag_resv_critical),
212 XFS_ERRORTAG_ATTR_LIST(log_bad_crc),
213 XFS_ERRORTAG_ATTR_LIST(log_item_pin),
214 XFS_ERRORTAG_ATTR_LIST(buf_lru_ref),
215 XFS_ERRORTAG_ATTR_LIST(force_repair),
216 XFS_ERRORTAG_ATTR_LIST(bad_summary),
217 XFS_ERRORTAG_ATTR_LIST(iunlink_fallback),
218 XFS_ERRORTAG_ATTR_LIST(buf_ioerror),
219 XFS_ERRORTAG_ATTR_LIST(reduce_max_iextents),
220 XFS_ERRORTAG_ATTR_LIST(bmap_alloc_minlen_extent),
221 XFS_ERRORTAG_ATTR_LIST(ag_resv_fail),
222 XFS_ERRORTAG_ATTR_LIST(larp),
223 XFS_ERRORTAG_ATTR_LIST(da_leaf_split),
224 XFS_ERRORTAG_ATTR_LIST(attr_leaf_to_node),
225 XFS_ERRORTAG_ATTR_LIST(wb_delay_ms),
226 XFS_ERRORTAG_ATTR_LIST(write_delay_ms),
227 NULL,
228 };
229 ATTRIBUTE_GROUPS(xfs_errortag);
230
231 static const struct kobj_type xfs_errortag_ktype = {
232 .release = xfs_sysfs_release,
233 .sysfs_ops = &xfs_errortag_sysfs_ops,
234 .default_groups = xfs_errortag_groups,
235 };
236
237 int
xfs_errortag_init(struct xfs_mount * mp)238 xfs_errortag_init(
239 struct xfs_mount *mp)
240 {
241 int ret;
242
243 mp->m_errortag = kmem_zalloc(sizeof(unsigned int) * XFS_ERRTAG_MAX,
244 KM_MAYFAIL);
245 if (!mp->m_errortag)
246 return -ENOMEM;
247
248 ret = xfs_sysfs_init(&mp->m_errortag_kobj, &xfs_errortag_ktype,
249 &mp->m_kobj, "errortag");
250 if (ret)
251 kmem_free(mp->m_errortag);
252 return ret;
253 }
254
255 void
xfs_errortag_del(struct xfs_mount * mp)256 xfs_errortag_del(
257 struct xfs_mount *mp)
258 {
259 xfs_sysfs_del(&mp->m_errortag_kobj);
260 kmem_free(mp->m_errortag);
261 }
262
263 static bool
xfs_errortag_valid(unsigned int error_tag)264 xfs_errortag_valid(
265 unsigned int error_tag)
266 {
267 if (error_tag >= XFS_ERRTAG_MAX)
268 return false;
269
270 /* Error out removed injection types */
271 if (error_tag == XFS_ERRTAG_DROP_WRITES)
272 return false;
273 return true;
274 }
275
276 bool
xfs_errortag_enabled(struct xfs_mount * mp,unsigned int tag)277 xfs_errortag_enabled(
278 struct xfs_mount *mp,
279 unsigned int tag)
280 {
281 if (!mp->m_errortag)
282 return false;
283 if (!xfs_errortag_valid(tag))
284 return false;
285
286 return mp->m_errortag[tag] != 0;
287 }
288
289 bool
xfs_errortag_test(struct xfs_mount * mp,const char * expression,const char * file,int line,unsigned int error_tag)290 xfs_errortag_test(
291 struct xfs_mount *mp,
292 const char *expression,
293 const char *file,
294 int line,
295 unsigned int error_tag)
296 {
297 unsigned int randfactor;
298
299 /*
300 * To be able to use error injection anywhere, we need to ensure error
301 * injection mechanism is already initialized.
302 *
303 * Code paths like I/O completion can be called before the
304 * initialization is complete, but be able to inject errors in such
305 * places is still useful.
306 */
307 if (!mp->m_errortag)
308 return false;
309
310 if (!xfs_errortag_valid(error_tag))
311 return false;
312
313 randfactor = mp->m_errortag[error_tag];
314 if (!randfactor || get_random_u32_below(randfactor))
315 return false;
316
317 xfs_warn_ratelimited(mp,
318 "Injecting error (%s) at file %s, line %d, on filesystem \"%s\"",
319 expression, file, line, mp->m_super->s_id);
320 return true;
321 }
322
323 int
xfs_errortag_get(struct xfs_mount * mp,unsigned int error_tag)324 xfs_errortag_get(
325 struct xfs_mount *mp,
326 unsigned int error_tag)
327 {
328 if (!xfs_errortag_valid(error_tag))
329 return -EINVAL;
330
331 return mp->m_errortag[error_tag];
332 }
333
334 int
xfs_errortag_set(struct xfs_mount * mp,unsigned int error_tag,unsigned int tag_value)335 xfs_errortag_set(
336 struct xfs_mount *mp,
337 unsigned int error_tag,
338 unsigned int tag_value)
339 {
340 if (!xfs_errortag_valid(error_tag))
341 return -EINVAL;
342
343 mp->m_errortag[error_tag] = tag_value;
344 return 0;
345 }
346
347 int
xfs_errortag_add(struct xfs_mount * mp,unsigned int error_tag)348 xfs_errortag_add(
349 struct xfs_mount *mp,
350 unsigned int error_tag)
351 {
352 BUILD_BUG_ON(ARRAY_SIZE(xfs_errortag_random_default) != XFS_ERRTAG_MAX);
353
354 if (!xfs_errortag_valid(error_tag))
355 return -EINVAL;
356
357 return xfs_errortag_set(mp, error_tag,
358 xfs_errortag_random_default[error_tag]);
359 }
360
361 int
xfs_errortag_clearall(struct xfs_mount * mp)362 xfs_errortag_clearall(
363 struct xfs_mount *mp)
364 {
365 memset(mp->m_errortag, 0, sizeof(unsigned int) * XFS_ERRTAG_MAX);
366 return 0;
367 }
368 #endif /* DEBUG */
369
370 void
xfs_error_report(const char * tag,int level,struct xfs_mount * mp,const char * filename,int linenum,xfs_failaddr_t failaddr)371 xfs_error_report(
372 const char *tag,
373 int level,
374 struct xfs_mount *mp,
375 const char *filename,
376 int linenum,
377 xfs_failaddr_t failaddr)
378 {
379 if (level <= xfs_error_level) {
380 xfs_alert_tag(mp, XFS_PTAG_ERROR_REPORT,
381 "Internal error %s at line %d of file %s. Caller %pS",
382 tag, linenum, filename, failaddr);
383
384 xfs_stack_trace();
385 }
386 }
387
388 void
xfs_corruption_error(const char * tag,int level,struct xfs_mount * mp,const void * buf,size_t bufsize,const char * filename,int linenum,xfs_failaddr_t failaddr)389 xfs_corruption_error(
390 const char *tag,
391 int level,
392 struct xfs_mount *mp,
393 const void *buf,
394 size_t bufsize,
395 const char *filename,
396 int linenum,
397 xfs_failaddr_t failaddr)
398 {
399 if (buf && level <= xfs_error_level)
400 xfs_hex_dump(buf, bufsize);
401 xfs_error_report(tag, level, mp, filename, linenum, failaddr);
402 xfs_alert(mp, "Corruption detected. Unmount and run xfs_repair");
403 }
404
405 /*
406 * Complain about the kinds of metadata corruption that we can't detect from a
407 * verifier, such as incorrect inter-block relationship data. Does not set
408 * bp->b_error.
409 *
410 * Call xfs_buf_mark_corrupt, not this function.
411 */
412 void
xfs_buf_corruption_error(struct xfs_buf * bp,xfs_failaddr_t fa)413 xfs_buf_corruption_error(
414 struct xfs_buf *bp,
415 xfs_failaddr_t fa)
416 {
417 struct xfs_mount *mp = bp->b_mount;
418
419 xfs_alert_tag(mp, XFS_PTAG_VERIFIER_ERROR,
420 "Metadata corruption detected at %pS, %s block 0x%llx",
421 fa, bp->b_ops->name, xfs_buf_daddr(bp));
422
423 xfs_alert(mp, "Unmount and run xfs_repair");
424
425 if (xfs_error_level >= XFS_ERRLEVEL_HIGH)
426 xfs_stack_trace();
427 }
428
429 /*
430 * Warnings specifically for verifier errors. Differentiate CRC vs. invalid
431 * values, and omit the stack trace unless the error level is tuned high.
432 */
433 void
xfs_buf_verifier_error(struct xfs_buf * bp,int error,const char * name,const void * buf,size_t bufsz,xfs_failaddr_t failaddr)434 xfs_buf_verifier_error(
435 struct xfs_buf *bp,
436 int error,
437 const char *name,
438 const void *buf,
439 size_t bufsz,
440 xfs_failaddr_t failaddr)
441 {
442 struct xfs_mount *mp = bp->b_mount;
443 xfs_failaddr_t fa;
444 int sz;
445
446 fa = failaddr ? failaddr : __return_address;
447 __xfs_buf_ioerror(bp, error, fa);
448
449 xfs_alert_tag(mp, XFS_PTAG_VERIFIER_ERROR,
450 "Metadata %s detected at %pS, %s block 0x%llx %s",
451 bp->b_error == -EFSBADCRC ? "CRC error" : "corruption",
452 fa, bp->b_ops->name, xfs_buf_daddr(bp), name);
453
454 xfs_alert(mp, "Unmount and run xfs_repair");
455
456 if (xfs_error_level >= XFS_ERRLEVEL_LOW) {
457 sz = min_t(size_t, XFS_CORRUPTION_DUMP_LEN, bufsz);
458 xfs_alert(mp, "First %d bytes of corrupted metadata buffer:",
459 sz);
460 xfs_hex_dump(buf, sz);
461 }
462
463 if (xfs_error_level >= XFS_ERRLEVEL_HIGH)
464 xfs_stack_trace();
465 }
466
467 /*
468 * Warnings specifically for verifier errors. Differentiate CRC vs. invalid
469 * values, and omit the stack trace unless the error level is tuned high.
470 */
471 void
xfs_verifier_error(struct xfs_buf * bp,int error,xfs_failaddr_t failaddr)472 xfs_verifier_error(
473 struct xfs_buf *bp,
474 int error,
475 xfs_failaddr_t failaddr)
476 {
477 return xfs_buf_verifier_error(bp, error, "", xfs_buf_offset(bp, 0),
478 XFS_CORRUPTION_DUMP_LEN, failaddr);
479 }
480
481 /*
482 * Warnings for inode corruption problems. Don't bother with the stack
483 * trace unless the error level is turned up high.
484 */
485 void
xfs_inode_verifier_error(struct xfs_inode * ip,int error,const char * name,const void * buf,size_t bufsz,xfs_failaddr_t failaddr)486 xfs_inode_verifier_error(
487 struct xfs_inode *ip,
488 int error,
489 const char *name,
490 const void *buf,
491 size_t bufsz,
492 xfs_failaddr_t failaddr)
493 {
494 struct xfs_mount *mp = ip->i_mount;
495 xfs_failaddr_t fa;
496 int sz;
497
498 fa = failaddr ? failaddr : __return_address;
499
500 xfs_alert(mp, "Metadata %s detected at %pS, inode 0x%llx %s",
501 error == -EFSBADCRC ? "CRC error" : "corruption",
502 fa, ip->i_ino, name);
503
504 xfs_alert(mp, "Unmount and run xfs_repair");
505
506 if (buf && xfs_error_level >= XFS_ERRLEVEL_LOW) {
507 sz = min_t(size_t, XFS_CORRUPTION_DUMP_LEN, bufsz);
508 xfs_alert(mp, "First %d bytes of corrupted metadata buffer:",
509 sz);
510 xfs_hex_dump(buf, sz);
511 }
512
513 if (xfs_error_level >= XFS_ERRLEVEL_HIGH)
514 xfs_stack_trace();
515 }
516