forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
463 lines
12 KiB
463 lines
12 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
/* |
|
* Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
|
* All Rights Reserved. |
|
*/ |
|
#include "xfs.h" |
|
#include "xfs_shared.h" |
|
#include "xfs_format.h" |
|
#include "xfs_fs.h" |
|
#include "xfs_log_format.h" |
|
#include "xfs_trans_resv.h" |
|
#include "xfs_mount.h" |
|
#include "xfs_errortag.h" |
|
#include "xfs_error.h" |
|
#include "xfs_sysfs.h" |
|
#include "xfs_inode.h" |
|
|
|
#ifdef DEBUG |
|
|
|
static unsigned int xfs_errortag_random_default[] = { |
|
XFS_RANDOM_DEFAULT, |
|
XFS_RANDOM_IFLUSH_1, |
|
XFS_RANDOM_IFLUSH_2, |
|
XFS_RANDOM_IFLUSH_3, |
|
XFS_RANDOM_IFLUSH_4, |
|
XFS_RANDOM_IFLUSH_5, |
|
XFS_RANDOM_IFLUSH_6, |
|
XFS_RANDOM_DA_READ_BUF, |
|
XFS_RANDOM_BTREE_CHECK_LBLOCK, |
|
XFS_RANDOM_BTREE_CHECK_SBLOCK, |
|
XFS_RANDOM_ALLOC_READ_AGF, |
|
XFS_RANDOM_IALLOC_READ_AGI, |
|
XFS_RANDOM_ITOBP_INOTOBP, |
|
XFS_RANDOM_IUNLINK, |
|
XFS_RANDOM_IUNLINK_REMOVE, |
|
XFS_RANDOM_DIR_INO_VALIDATE, |
|
XFS_RANDOM_BULKSTAT_READ_CHUNK, |
|
XFS_RANDOM_IODONE_IOERR, |
|
XFS_RANDOM_STRATREAD_IOERR, |
|
XFS_RANDOM_STRATCMPL_IOERR, |
|
XFS_RANDOM_DIOWRITE_IOERR, |
|
XFS_RANDOM_BMAPIFORMAT, |
|
XFS_RANDOM_FREE_EXTENT, |
|
XFS_RANDOM_RMAP_FINISH_ONE, |
|
XFS_RANDOM_REFCOUNT_CONTINUE_UPDATE, |
|
XFS_RANDOM_REFCOUNT_FINISH_ONE, |
|
XFS_RANDOM_BMAP_FINISH_ONE, |
|
XFS_RANDOM_AG_RESV_CRITICAL, |
|
XFS_RANDOM_DROP_WRITES, |
|
XFS_RANDOM_LOG_BAD_CRC, |
|
XFS_RANDOM_LOG_ITEM_PIN, |
|
XFS_RANDOM_BUF_LRU_REF, |
|
XFS_RANDOM_FORCE_SCRUB_REPAIR, |
|
XFS_RANDOM_FORCE_SUMMARY_RECALC, |
|
XFS_RANDOM_IUNLINK_FALLBACK, |
|
XFS_RANDOM_BUF_IOERROR, |
|
XFS_RANDOM_REDUCE_MAX_IEXTENTS, |
|
XFS_RANDOM_BMAP_ALLOC_MINLEN_EXTENT, |
|
}; |
|
|
|
struct xfs_errortag_attr { |
|
struct attribute attr; |
|
unsigned int tag; |
|
}; |
|
|
|
static inline struct xfs_errortag_attr * |
|
to_attr(struct attribute *attr) |
|
{ |
|
return container_of(attr, struct xfs_errortag_attr, attr); |
|
} |
|
|
|
static inline struct xfs_mount * |
|
to_mp(struct kobject *kobject) |
|
{ |
|
struct xfs_kobj *kobj = to_kobj(kobject); |
|
|
|
return container_of(kobj, struct xfs_mount, m_errortag_kobj); |
|
} |
|
|
|
STATIC ssize_t |
|
xfs_errortag_attr_store( |
|
struct kobject *kobject, |
|
struct attribute *attr, |
|
const char *buf, |
|
size_t count) |
|
{ |
|
struct xfs_mount *mp = to_mp(kobject); |
|
struct xfs_errortag_attr *xfs_attr = to_attr(attr); |
|
int ret; |
|
unsigned int val; |
|
|
|
if (strcmp(buf, "default") == 0) { |
|
val = xfs_errortag_random_default[xfs_attr->tag]; |
|
} else { |
|
ret = kstrtouint(buf, 0, &val); |
|
if (ret) |
|
return ret; |
|
} |
|
|
|
ret = xfs_errortag_set(mp, xfs_attr->tag, val); |
|
if (ret) |
|
return ret; |
|
return count; |
|
} |
|
|
|
STATIC ssize_t |
|
xfs_errortag_attr_show( |
|
struct kobject *kobject, |
|
struct attribute *attr, |
|
char *buf) |
|
{ |
|
struct xfs_mount *mp = to_mp(kobject); |
|
struct xfs_errortag_attr *xfs_attr = to_attr(attr); |
|
|
|
return snprintf(buf, PAGE_SIZE, "%u\n", |
|
xfs_errortag_get(mp, xfs_attr->tag)); |
|
} |
|
|
|
static const struct sysfs_ops xfs_errortag_sysfs_ops = { |
|
.show = xfs_errortag_attr_show, |
|
.store = xfs_errortag_attr_store, |
|
}; |
|
|
|
#define XFS_ERRORTAG_ATTR_RW(_name, _tag) \ |
|
static struct xfs_errortag_attr xfs_errortag_attr_##_name = { \ |
|
.attr = {.name = __stringify(_name), \ |
|
.mode = VERIFY_OCTAL_PERMISSIONS(S_IWUSR | S_IRUGO) }, \ |
|
.tag = (_tag), \ |
|
} |
|
|
|
#define XFS_ERRORTAG_ATTR_LIST(_name) &xfs_errortag_attr_##_name.attr |
|
|
|
XFS_ERRORTAG_ATTR_RW(noerror, XFS_ERRTAG_NOERROR); |
|
XFS_ERRORTAG_ATTR_RW(iflush1, XFS_ERRTAG_IFLUSH_1); |
|
XFS_ERRORTAG_ATTR_RW(iflush2, XFS_ERRTAG_IFLUSH_2); |
|
XFS_ERRORTAG_ATTR_RW(iflush3, XFS_ERRTAG_IFLUSH_3); |
|
XFS_ERRORTAG_ATTR_RW(iflush4, XFS_ERRTAG_IFLUSH_4); |
|
XFS_ERRORTAG_ATTR_RW(iflush5, XFS_ERRTAG_IFLUSH_5); |
|
XFS_ERRORTAG_ATTR_RW(iflush6, XFS_ERRTAG_IFLUSH_6); |
|
XFS_ERRORTAG_ATTR_RW(dareadbuf, XFS_ERRTAG_DA_READ_BUF); |
|
XFS_ERRORTAG_ATTR_RW(btree_chk_lblk, XFS_ERRTAG_BTREE_CHECK_LBLOCK); |
|
XFS_ERRORTAG_ATTR_RW(btree_chk_sblk, XFS_ERRTAG_BTREE_CHECK_SBLOCK); |
|
XFS_ERRORTAG_ATTR_RW(readagf, XFS_ERRTAG_ALLOC_READ_AGF); |
|
XFS_ERRORTAG_ATTR_RW(readagi, XFS_ERRTAG_IALLOC_READ_AGI); |
|
XFS_ERRORTAG_ATTR_RW(itobp, XFS_ERRTAG_ITOBP_INOTOBP); |
|
XFS_ERRORTAG_ATTR_RW(iunlink, XFS_ERRTAG_IUNLINK); |
|
XFS_ERRORTAG_ATTR_RW(iunlinkrm, XFS_ERRTAG_IUNLINK_REMOVE); |
|
XFS_ERRORTAG_ATTR_RW(dirinovalid, XFS_ERRTAG_DIR_INO_VALIDATE); |
|
XFS_ERRORTAG_ATTR_RW(bulkstat, XFS_ERRTAG_BULKSTAT_READ_CHUNK); |
|
XFS_ERRORTAG_ATTR_RW(logiodone, XFS_ERRTAG_IODONE_IOERR); |
|
XFS_ERRORTAG_ATTR_RW(stratread, XFS_ERRTAG_STRATREAD_IOERR); |
|
XFS_ERRORTAG_ATTR_RW(stratcmpl, XFS_ERRTAG_STRATCMPL_IOERR); |
|
XFS_ERRORTAG_ATTR_RW(diowrite, XFS_ERRTAG_DIOWRITE_IOERR); |
|
XFS_ERRORTAG_ATTR_RW(bmapifmt, XFS_ERRTAG_BMAPIFORMAT); |
|
XFS_ERRORTAG_ATTR_RW(free_extent, XFS_ERRTAG_FREE_EXTENT); |
|
XFS_ERRORTAG_ATTR_RW(rmap_finish_one, XFS_ERRTAG_RMAP_FINISH_ONE); |
|
XFS_ERRORTAG_ATTR_RW(refcount_continue_update, XFS_ERRTAG_REFCOUNT_CONTINUE_UPDATE); |
|
XFS_ERRORTAG_ATTR_RW(refcount_finish_one, XFS_ERRTAG_REFCOUNT_FINISH_ONE); |
|
XFS_ERRORTAG_ATTR_RW(bmap_finish_one, XFS_ERRTAG_BMAP_FINISH_ONE); |
|
XFS_ERRORTAG_ATTR_RW(ag_resv_critical, XFS_ERRTAG_AG_RESV_CRITICAL); |
|
XFS_ERRORTAG_ATTR_RW(drop_writes, XFS_ERRTAG_DROP_WRITES); |
|
XFS_ERRORTAG_ATTR_RW(log_bad_crc, XFS_ERRTAG_LOG_BAD_CRC); |
|
XFS_ERRORTAG_ATTR_RW(log_item_pin, XFS_ERRTAG_LOG_ITEM_PIN); |
|
XFS_ERRORTAG_ATTR_RW(buf_lru_ref, XFS_ERRTAG_BUF_LRU_REF); |
|
XFS_ERRORTAG_ATTR_RW(force_repair, XFS_ERRTAG_FORCE_SCRUB_REPAIR); |
|
XFS_ERRORTAG_ATTR_RW(bad_summary, XFS_ERRTAG_FORCE_SUMMARY_RECALC); |
|
XFS_ERRORTAG_ATTR_RW(iunlink_fallback, XFS_ERRTAG_IUNLINK_FALLBACK); |
|
XFS_ERRORTAG_ATTR_RW(buf_ioerror, XFS_ERRTAG_BUF_IOERROR); |
|
XFS_ERRORTAG_ATTR_RW(reduce_max_iextents, XFS_ERRTAG_REDUCE_MAX_IEXTENTS); |
|
XFS_ERRORTAG_ATTR_RW(bmap_alloc_minlen_extent, XFS_ERRTAG_BMAP_ALLOC_MINLEN_EXTENT); |
|
|
|
static struct attribute *xfs_errortag_attrs[] = { |
|
XFS_ERRORTAG_ATTR_LIST(noerror), |
|
XFS_ERRORTAG_ATTR_LIST(iflush1), |
|
XFS_ERRORTAG_ATTR_LIST(iflush2), |
|
XFS_ERRORTAG_ATTR_LIST(iflush3), |
|
XFS_ERRORTAG_ATTR_LIST(iflush4), |
|
XFS_ERRORTAG_ATTR_LIST(iflush5), |
|
XFS_ERRORTAG_ATTR_LIST(iflush6), |
|
XFS_ERRORTAG_ATTR_LIST(dareadbuf), |
|
XFS_ERRORTAG_ATTR_LIST(btree_chk_lblk), |
|
XFS_ERRORTAG_ATTR_LIST(btree_chk_sblk), |
|
XFS_ERRORTAG_ATTR_LIST(readagf), |
|
XFS_ERRORTAG_ATTR_LIST(readagi), |
|
XFS_ERRORTAG_ATTR_LIST(itobp), |
|
XFS_ERRORTAG_ATTR_LIST(iunlink), |
|
XFS_ERRORTAG_ATTR_LIST(iunlinkrm), |
|
XFS_ERRORTAG_ATTR_LIST(dirinovalid), |
|
XFS_ERRORTAG_ATTR_LIST(bulkstat), |
|
XFS_ERRORTAG_ATTR_LIST(logiodone), |
|
XFS_ERRORTAG_ATTR_LIST(stratread), |
|
XFS_ERRORTAG_ATTR_LIST(stratcmpl), |
|
XFS_ERRORTAG_ATTR_LIST(diowrite), |
|
XFS_ERRORTAG_ATTR_LIST(bmapifmt), |
|
XFS_ERRORTAG_ATTR_LIST(free_extent), |
|
XFS_ERRORTAG_ATTR_LIST(rmap_finish_one), |
|
XFS_ERRORTAG_ATTR_LIST(refcount_continue_update), |
|
XFS_ERRORTAG_ATTR_LIST(refcount_finish_one), |
|
XFS_ERRORTAG_ATTR_LIST(bmap_finish_one), |
|
XFS_ERRORTAG_ATTR_LIST(ag_resv_critical), |
|
XFS_ERRORTAG_ATTR_LIST(drop_writes), |
|
XFS_ERRORTAG_ATTR_LIST(log_bad_crc), |
|
XFS_ERRORTAG_ATTR_LIST(log_item_pin), |
|
XFS_ERRORTAG_ATTR_LIST(buf_lru_ref), |
|
XFS_ERRORTAG_ATTR_LIST(force_repair), |
|
XFS_ERRORTAG_ATTR_LIST(bad_summary), |
|
XFS_ERRORTAG_ATTR_LIST(iunlink_fallback), |
|
XFS_ERRORTAG_ATTR_LIST(buf_ioerror), |
|
XFS_ERRORTAG_ATTR_LIST(reduce_max_iextents), |
|
XFS_ERRORTAG_ATTR_LIST(bmap_alloc_minlen_extent), |
|
NULL, |
|
}; |
|
|
|
static struct kobj_type xfs_errortag_ktype = { |
|
.release = xfs_sysfs_release, |
|
.sysfs_ops = &xfs_errortag_sysfs_ops, |
|
.default_attrs = xfs_errortag_attrs, |
|
}; |
|
|
|
int |
|
xfs_errortag_init( |
|
struct xfs_mount *mp) |
|
{ |
|
mp->m_errortag = kmem_zalloc(sizeof(unsigned int) * XFS_ERRTAG_MAX, |
|
KM_MAYFAIL); |
|
if (!mp->m_errortag) |
|
return -ENOMEM; |
|
|
|
return xfs_sysfs_init(&mp->m_errortag_kobj, &xfs_errortag_ktype, |
|
&mp->m_kobj, "errortag"); |
|
} |
|
|
|
void |
|
xfs_errortag_del( |
|
struct xfs_mount *mp) |
|
{ |
|
xfs_sysfs_del(&mp->m_errortag_kobj); |
|
kmem_free(mp->m_errortag); |
|
} |
|
|
|
bool |
|
xfs_errortag_test( |
|
struct xfs_mount *mp, |
|
const char *expression, |
|
const char *file, |
|
int line, |
|
unsigned int error_tag) |
|
{ |
|
unsigned int randfactor; |
|
|
|
/* |
|
* To be able to use error injection anywhere, we need to ensure error |
|
* injection mechanism is already initialized. |
|
* |
|
* Code paths like I/O completion can be called before the |
|
* initialization is complete, but be able to inject errors in such |
|
* places is still useful. |
|
*/ |
|
if (!mp->m_errortag) |
|
return false; |
|
|
|
ASSERT(error_tag < XFS_ERRTAG_MAX); |
|
randfactor = mp->m_errortag[error_tag]; |
|
if (!randfactor || prandom_u32() % randfactor) |
|
return false; |
|
|
|
xfs_warn_ratelimited(mp, |
|
"Injecting error (%s) at file %s, line %d, on filesystem \"%s\"", |
|
expression, file, line, mp->m_super->s_id); |
|
return true; |
|
} |
|
|
|
int |
|
xfs_errortag_get( |
|
struct xfs_mount *mp, |
|
unsigned int error_tag) |
|
{ |
|
if (error_tag >= XFS_ERRTAG_MAX) |
|
return -EINVAL; |
|
|
|
return mp->m_errortag[error_tag]; |
|
} |
|
|
|
int |
|
xfs_errortag_set( |
|
struct xfs_mount *mp, |
|
unsigned int error_tag, |
|
unsigned int tag_value) |
|
{ |
|
if (error_tag >= XFS_ERRTAG_MAX) |
|
return -EINVAL; |
|
|
|
mp->m_errortag[error_tag] = tag_value; |
|
return 0; |
|
} |
|
|
|
int |
|
xfs_errortag_add( |
|
struct xfs_mount *mp, |
|
unsigned int error_tag) |
|
{ |
|
if (error_tag >= XFS_ERRTAG_MAX) |
|
return -EINVAL; |
|
|
|
return xfs_errortag_set(mp, error_tag, |
|
xfs_errortag_random_default[error_tag]); |
|
} |
|
|
|
int |
|
xfs_errortag_clearall( |
|
struct xfs_mount *mp) |
|
{ |
|
memset(mp->m_errortag, 0, sizeof(unsigned int) * XFS_ERRTAG_MAX); |
|
return 0; |
|
} |
|
#endif /* DEBUG */ |
|
|
|
void |
|
xfs_error_report( |
|
const char *tag, |
|
int level, |
|
struct xfs_mount *mp, |
|
const char *filename, |
|
int linenum, |
|
xfs_failaddr_t failaddr) |
|
{ |
|
if (level <= xfs_error_level) { |
|
xfs_alert_tag(mp, XFS_PTAG_ERROR_REPORT, |
|
"Internal error %s at line %d of file %s. Caller %pS", |
|
tag, linenum, filename, failaddr); |
|
|
|
xfs_stack_trace(); |
|
} |
|
} |
|
|
|
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) |
|
{ |
|
if (buf && level <= xfs_error_level) |
|
xfs_hex_dump(buf, bufsize); |
|
xfs_error_report(tag, level, mp, filename, linenum, failaddr); |
|
xfs_alert(mp, "Corruption detected. Unmount and run xfs_repair"); |
|
} |
|
|
|
/* |
|
* Complain about the kinds of metadata corruption that we can't detect from a |
|
* verifier, such as incorrect inter-block relationship data. Does not set |
|
* bp->b_error. |
|
* |
|
* Call xfs_buf_mark_corrupt, not this function. |
|
*/ |
|
void |
|
xfs_buf_corruption_error( |
|
struct xfs_buf *bp, |
|
xfs_failaddr_t fa) |
|
{ |
|
struct xfs_mount *mp = bp->b_mount; |
|
|
|
xfs_alert_tag(mp, XFS_PTAG_VERIFIER_ERROR, |
|
"Metadata corruption detected at %pS, %s block 0x%llx", |
|
fa, bp->b_ops->name, bp->b_bn); |
|
|
|
xfs_alert(mp, "Unmount and run xfs_repair"); |
|
|
|
if (xfs_error_level >= XFS_ERRLEVEL_HIGH) |
|
xfs_stack_trace(); |
|
} |
|
|
|
/* |
|
* Warnings specifically for verifier errors. Differentiate CRC vs. invalid |
|
* values, and omit the stack trace unless the error level is tuned high. |
|
*/ |
|
void |
|
xfs_buf_verifier_error( |
|
struct xfs_buf *bp, |
|
int error, |
|
const char *name, |
|
const void *buf, |
|
size_t bufsz, |
|
xfs_failaddr_t failaddr) |
|
{ |
|
struct xfs_mount *mp = bp->b_mount; |
|
xfs_failaddr_t fa; |
|
int sz; |
|
|
|
fa = failaddr ? failaddr : __return_address; |
|
__xfs_buf_ioerror(bp, error, fa); |
|
|
|
xfs_alert_tag(mp, XFS_PTAG_VERIFIER_ERROR, |
|
"Metadata %s detected at %pS, %s block 0x%llx %s", |
|
bp->b_error == -EFSBADCRC ? "CRC error" : "corruption", |
|
fa, bp->b_ops->name, bp->b_bn, name); |
|
|
|
xfs_alert(mp, "Unmount and run xfs_repair"); |
|
|
|
if (xfs_error_level >= XFS_ERRLEVEL_LOW) { |
|
sz = min_t(size_t, XFS_CORRUPTION_DUMP_LEN, bufsz); |
|
xfs_alert(mp, "First %d bytes of corrupted metadata buffer:", |
|
sz); |
|
xfs_hex_dump(buf, sz); |
|
} |
|
|
|
if (xfs_error_level >= XFS_ERRLEVEL_HIGH) |
|
xfs_stack_trace(); |
|
} |
|
|
|
/* |
|
* Warnings specifically for verifier errors. Differentiate CRC vs. invalid |
|
* values, and omit the stack trace unless the error level is tuned high. |
|
*/ |
|
void |
|
xfs_verifier_error( |
|
struct xfs_buf *bp, |
|
int error, |
|
xfs_failaddr_t failaddr) |
|
{ |
|
return xfs_buf_verifier_error(bp, error, "", xfs_buf_offset(bp, 0), |
|
XFS_CORRUPTION_DUMP_LEN, failaddr); |
|
} |
|
|
|
/* |
|
* Warnings for inode corruption problems. Don't bother with the stack |
|
* trace unless the error level is turned up high. |
|
*/ |
|
void |
|
xfs_inode_verifier_error( |
|
struct xfs_inode *ip, |
|
int error, |
|
const char *name, |
|
const void *buf, |
|
size_t bufsz, |
|
xfs_failaddr_t failaddr) |
|
{ |
|
struct xfs_mount *mp = ip->i_mount; |
|
xfs_failaddr_t fa; |
|
int sz; |
|
|
|
fa = failaddr ? failaddr : __return_address; |
|
|
|
xfs_alert(mp, "Metadata %s detected at %pS, inode 0x%llx %s", |
|
error == -EFSBADCRC ? "CRC error" : "corruption", |
|
fa, ip->i_ino, name); |
|
|
|
xfs_alert(mp, "Unmount and run xfs_repair"); |
|
|
|
if (buf && xfs_error_level >= XFS_ERRLEVEL_LOW) { |
|
sz = min_t(size_t, XFS_CORRUPTION_DUMP_LEN, bufsz); |
|
xfs_alert(mp, "First %d bytes of corrupted metadata buffer:", |
|
sz); |
|
xfs_hex_dump(buf, sz); |
|
} |
|
|
|
if (xfs_error_level >= XFS_ERRLEVEL_HIGH) |
|
xfs_stack_trace(); |
|
}
|
|
|