Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 2 | * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
| 3 | * All Rights Reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 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 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * published by the Free Software Foundation. |
| 8 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 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 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include "xfs.h" |
Dave Chinner | a4fbe6a | 2013-10-23 10:51:50 +1100 | [diff] [blame] | 19 | #include "xfs_format.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 20 | #include "xfs_fs.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 21 | #include "xfs_log_format.h" |
| 22 | #include "xfs_trans_resv.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include "xfs_mount.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | #include "xfs_error.h" |
| 25 | |
| 26 | #ifdef DEBUG |
| 27 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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]; |
Dave Chinner | c76febe | 2010-11-30 15:15:31 +1100 | [diff] [blame] | 31 | int xfs_error_test_active; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Akinobu Mita | ecb3403 | 2013-03-04 21:58:20 +0900 | [diff] [blame] | 40 | if (prandom_u32() % randfactor) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) { |
Dave Chinner | 0b932cc | 2011-03-07 10:08:35 +1100 | [diff] [blame] | 47 | xfs_warn(NULL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) { |
Dave Chinner | 0b932cc | 2011-03-07 10:08:35 +1100 | [diff] [blame] | 68 | xfs_warn(mp, "error tag #%d on", error_tag); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | return 0; |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | for (i = 0; i < XFS_NUM_INJECT_ERROR; i++) { |
| 74 | if (xfs_etest[i] == 0) { |
Dave Chinner | 0b932cc | 2011-03-07 10:08:35 +1100 | [diff] [blame] | 75 | xfs_warn(mp, "Turned on XFS error tag #%d", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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); |
Dave Chinner | c76febe | 2010-11-30 15:15:31 +1100 | [diff] [blame] | 82 | xfs_error_test_active++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | return 0; |
| 84 | } |
| 85 | } |
| 86 | |
Dave Chinner | 0b932cc | 2011-03-07 10:08:35 +1100 | [diff] [blame] | 87 | xfs_warn(mp, "error tag overflow, too many turned on"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | |
| 89 | return 1; |
| 90 | } |
| 91 | |
| 92 | int |
Christoph Hellwig | 0ce4cfd | 2007-08-30 17:20:53 +1000 | [diff] [blame] | 93 | xfs_errortag_clearall(xfs_mount_t *mp, int loud) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | { |
Christoph Hellwig | 0ce4cfd | 2007-08-30 17:20:53 +1000 | [diff] [blame] | 95 | int64_t fsid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | int cleared = 0; |
Christoph Hellwig | 0ce4cfd | 2007-08-30 17:20:53 +1000 | [diff] [blame] | 97 | int i; |
| 98 | |
| 99 | memcpy(&fsid, mp->m_fixedfsid, sizeof(xfs_fsid_t)); |
| 100 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Dave Chinner | 0b932cc | 2011-03-07 10:08:35 +1100 | [diff] [blame] | 106 | xfs_warn(mp, "Clearing XFS error tag #%d", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | xfs_etest[i]); |
| 108 | xfs_etest[i] = 0; |
| 109 | xfs_etest_fsid[i] = 0LL; |
Denys Vlasenko | f0e2d93 | 2008-05-19 16:31:57 +1000 | [diff] [blame] | 110 | kmem_free(xfs_etest_fsname[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | xfs_etest_fsname[i] = NULL; |
Dave Chinner | c76febe | 2010-11-30 15:15:31 +1100 | [diff] [blame] | 112 | xfs_error_test_active--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | } |
| 114 | } |
| 115 | |
| 116 | if (loud || cleared) |
Dave Chinner | 0b932cc | 2011-03-07 10:08:35 +1100 | [diff] [blame] | 117 | xfs_warn(mp, "Cleared all XFS error tags for filesystem"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | |
| 119 | return 0; |
| 120 | } |
Christoph Hellwig | 1550d0b | 2008-08-13 16:17:37 +1000 | [diff] [blame] | 121 | #endif /* DEBUG */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | void |
| 124 | xfs_error_report( |
Alex Elder | a0e856b | 2010-04-13 15:22:08 +1000 | [diff] [blame] | 125 | const char *tag, |
| 126 | int level, |
| 127 | struct xfs_mount *mp, |
| 128 | const char *filename, |
| 129 | int linenum, |
Christoph Hellwig | fc51c2b | 2015-06-22 09:44:02 +1000 | [diff] [blame] | 130 | void *ra) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | { |
| 132 | if (level <= xfs_error_level) { |
Dave Chinner | 6a19d93 | 2011-03-07 10:02:35 +1100 | [diff] [blame] | 133 | xfs_alert_tag(mp, XFS_PTAG_ERROR_REPORT, |
Scott Wood | 65dd297 | 2015-03-25 14:56:21 +1100 | [diff] [blame] | 134 | "Internal error %s at line %d of file %s. Caller %pS", |
Alex Elder | a0e856b | 2010-04-13 15:22:08 +1000 | [diff] [blame] | 135 | tag, linenum, filename, ra); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | |
| 137 | xfs_stack_trace(); |
| 138 | } |
| 139 | } |
| 140 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | void |
| 142 | xfs_corruption_error( |
Alex Elder | a0e856b | 2010-04-13 15:22:08 +1000 | [diff] [blame] | 143 | const char *tag, |
| 144 | int level, |
| 145 | struct xfs_mount *mp, |
| 146 | void *p, |
| 147 | const char *filename, |
| 148 | int linenum, |
Christoph Hellwig | fc51c2b | 2015-06-22 09:44:02 +1000 | [diff] [blame] | 149 | void *ra) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | { |
| 151 | if (level <= xfs_error_level) |
Dave Chinner | a205064 | 2013-04-03 16:11:11 +1100 | [diff] [blame] | 152 | xfs_hex_dump(p, 64); |
Alex Elder | a0e856b | 2010-04-13 15:22:08 +1000 | [diff] [blame] | 153 | xfs_error_report(tag, level, mp, filename, linenum, ra); |
Dave Chinner | 65333b4 | 2011-03-07 10:03:35 +1100 | [diff] [blame] | 154 | xfs_alert(mp, "Corruption detected. Unmount and run xfs_repair"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | } |
Eric Sandeen | ca23f8f | 2014-02-27 15:21:07 +1100 | [diff] [blame] | 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", |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 168 | bp->b_error == -EFSBADCRC ? "CRC error" : "corruption", |
Eric Sandeen | ca23f8f | 2014-02-27 15:21:07 +1100 | [diff] [blame] | 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 | } |