This is on a 4.8-RELEASE system. I know this is ancient but the referenced
code doesn't seem to have changed much.
This is our samba file server. We've been getting reboots every 20 days or
so.
vinum RAID10 if that matters. dmesg/WHY on request.
I am not a kernel hacker.
dumpster# gdb -k^M
GNU gdb 4.18 (FreeBSD)
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for
details.
This GDB was configured as "i386-unknown-freebsd".
(kgdb) stmymbol-file ke^Grnel.d^Gebug
Reading symbols from kernel.debug...Deprecated bfd_read called at
/usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb/gdb/dbxread.c line
2627 in elfstab_build_psymtabs
Deprecated bfd_read called at
/usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb/gdb/dbxread.c line 933
in fill_symbuf
done.
(kgdb) exec-file ke^Grnel.4
(kgdb) core-file vm^Gcore.4
IdlePTD at phsyical address 0x003c4000
initial pcb at physical address 0x0031f6a0
panicstr: ffs_blkfree: bad size
panic messages:
---
panic: ffs_blkfree: bad size
syncing disks... 154 21
done
Uptime: 18d20h25m18s
dumping to dev #da/0x20001, offset 1048704
dump 1535 1534 1533 1532 1531 1530 1529 1528 1527 1526 1525 1524 1523 1522 1521
1520 1519 1518 1517 1516 1515 1514 1513 1512 1511 1510 1509 1508 1507 1506 1505
1504 1503 1502 1501 1500 1499 1498 1497 1496 1495 1494 1493 1492
1491 1490 1489 1488 1487 1486 1485 1484 1483 1482 1481 1480 1479 1478 1477 1476
1475 1474 1473 1472 1471 1470 1469 1468 1467 1466 1465 1464 1463 1462 1461 1460
1459 1458 1457 1456 1455 1454 1453 1452 1451 1450 1449 1448 144
7 1446 1445 1444 1443 1442 1441 1440 1439 1438 1437 1436 1435 1434 1433 1432
1431 1430 1429 1428 1427 1426 1425 1424 1423 1422 1421 1420 1419 1418 1417 1416
1415 1414 1413 1412 1411 1410 1409 1408 1407 1406 1405 1404 1403 14
02 1401 1400 1399 1398 1397 1396 1395 1394 1393 1392 1391 1390 1389 1388 1387
1386 1385 1384 1383 1382 1381 1380 1379 1378 1377 1376 1375 1374 1373 1372 1371
1370 1369 1368 1367 1366 1365 1364 1363 1362 1361 1360 1359 1358 1
357 1356 1355 1354 1353 1352 1351 1350 1349 1348 1347 1346 1345 1344 1343 1342
1341 1340 1339 1338 1337 1336 1335 1334 1333 1332 1331 1330 1329 1328 1327 1326
1325 1324 1323 1322 1321 1320 1319 1318 1317 1316 1315 1314 1313
1312 1311 1310 1309 1308 1307 1306 1305 1304 1303 1302 1301 1300 1299 1298 1297
1296 1295 1294 1293 1292 1291 1290 1289 1288 1287 1286 1285 1284 1283 1282 1281
1280 1279 1278 1277 1276 1275 1274 1273 1272 1271 1270 1269 1268
1267 1266 1265 1264 1263 1262 1261 1260 1259 1258 1257 1256 1255 1254 1253 1252
1251 1250 1249 1248 1247 1246 1245 1244 1243 1242 1241 1240 1239 1238 1237 1236
1235 1234 1233 1232 1231 1230 1229 1228 1227 1226 1225 1224 122
3 1222 1221 1220 1219 1218 1217 1216 1215 1214 1213 1212 1211 1210 1209 1208
1207 1206 1205 1204 1203 1202 1201 1200 1199 1198 1197 1196 1195 1194 1193 1192
1191 1190 1189 1188 1187 1186 1185 1184 1183 1182 1181 1180 1179 11
78 1177 1176 1175 1174 1173 1172 1171 1170 1169 1168 1167 1166 1165 1164 1163
1162 1161 1160 1159 1158 1157 1156 1155 1154 1153 1152 1151 1150 1149 1148 1147
1146 1145 1144 1143 1142 1141 1140 1139 1138 1137 1136 1135 1134 1
133 1132 1131 1130 1129 1128 1127 1126 1125 1124 1123 1122 1121 1120 1119 1118
1117 1116 1115 1114 1113 1112 1111 1110 1109 1108 1107 1106 1105 1104 1103 1102
1101 1100 1099 1098 1097 1096 1095 1094 1093 1092 1091 1090 1089
1088 1087 1086 1085 1084 1083 1082 1081 1080 1079 1078 1077 1076 1075 1074 1073
1072 1071 1070 1069 1068 1067 1066 1065 1064 1063 1062 1061 1060 1059 1058 1057
1056 1055 1054 1053 1052 1051 1050 1049 1048 1047 1046 1045 1044
1043 1042 1041 1040 1039 1038 1037 1036 1035 1034 1033 1032 1031 1030 1029 1028
1027 1026 1025 1024 1023 1022 1021 1020 1019 1018 1017 1016 1015 1014 1013 1012
1011 1010 1009 1008 1007 1006 1005 1004 1003 1002 1001 1000 999
998 997 996 995 994 993 992 991 990 989 988 987 986 985 984 983 982 981 980 979
978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959
958 957 956 955 954 953 952 951 950 949 948 947 946 945 944 943
942 941 940 939 938 937 936 935 934 933 932 931 930 929 928 927 926 925 924 923
922 921 920 919 918 917 916 915 914 913 912 911 910 909 908 907 906 905 904 903
902 901 900 899 898 897 896 895 894 893 892 891 890 889 888 887
886 885 884 883 882 881 880 879 878 877 876 875 874 873 872 871 870 869 868 867
866 865 864 863 862 861 860 859 858 857 856 855 854 853 852 851 850 849 848 847
846 845 844 843 842 841 840 839 838 837 836 835 834 833 832 831
830 829 828 827 826 825 824 823 822 821 820 819 818 817 816 815 814 813 812 811
810 809 808 807 806 805 804 803 802 801 800 799 798 797 796 795 794 793 792 791
790 789 788 787 786 785 784 783 782 781 780 779 778 777 776 775
774 773 772 771 770 769 768 767 766 765 764 763 762 761 760 759 758 757 756 755
754 753 752 751 750 749 748 747 746 745 744 743 742 741 740 739 738 737 736 735
734 733 732 731 730 729 728 727 726 725 724 723 722 721 720 719
718 717 716 715 714 713 712 711 710 709 708 707 706 705 704 703 702 701 700 699
698 697 696 695 694 693 692 691 690 689 688 687 686 685 684 683 682 681 680 679
678 677 676 675 674 673 672 671 670 669 668 667 666 665 664 663
662 661 660 659 658 657 656 655 654 653 652 651 650 649 648 647 646 645 644 643
642 641 640 639 638 637 636 635 634 633 632 631 630 629 628 627 626 625 624 623
622 621 620 619 618 617 616 615 614 613 612 611 610 609 608 607
606 605 604 603 602 601 600 599 598 597 596 595 594 593 592 591 590 589 588 587
586 585 584 583 582 581 580 579 578 577 576 575 574 573 572 571 570 569 568 567
566 565 564 563 562 561 560 559 558 557 556 555 554 553 552 551
550 549 548 547 546 545 544 543 542 541 540 539 538 537 536 535 534 533 532 531
530 529 528 527 526 525 524 523 522 521 520 519 518 517 516 515 514 513 512 511
510 509 508 507 506 505 504 503 502 501 500 499 498 497 496 495
494 493 492 491 490 489 488 487 486 485 484 483 482 481 480 479 478 477 476 475
474 473 472 471 470 469 468 467 466 465 464 463 462 461 460 459 458 457 456 455
454 453 452 451 450 449 448 447 446 445 444 443 442 441 440 439
438 437 436 435 434 433 432 431 430 429 428 427 426 425 424 423 422 421 420 419
418 417 416 415 414 413 412 411 410 409 408 407 406 405 404 403 402 401 400 399
398 397 396 395 394 393 392 391 390 389 388 387 386 385 384 383
382 381 380 379 378 377 376 375 374 373 372 371 370 369 368 367 366 365 364 363
362 361 360 359 358 357 356 355 354 353 352 351 350 349 348 347 346 345 344 343
342 341 340 339 338 337 336 335 334 333 332 331 330 329 328 327
326 325 324 323 322 321 320 319 318 317 316 315 314 313 312 311 310 309 308 307
306 305 304 303 302 301 300 299 298 297 296 295 294 293 292 291 290 289 288 287
286 285 284 283 282 281 280 279 278 277 276 275 274 273 272 271
270 269 268 267 266 265 264 263 262 261 260 259 258 257 256 255 254 253 252 251
250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231
230 229 228 227 226 225 224 223 222 221 220 219 218 217 216 215
214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195
194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175
174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159
158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139
138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119
118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103
102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78
77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 2
9 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
---
#0 0xc017d98a in dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
487 if (dumping++) {
(kgdb) bt
#0 0xc017d98a in dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
#1 0xc3f0e694 in ?? ()
#2 0xc017d75b in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:319
#3 0xc017db80 in poweroff_wait (junk=0xc02db435, howto=-1070746624) at
/usr/src/sys/kern/kern_shutdown.c:612
#4 0xc02494b3 in ffs_blkfree (ip=0xe3654e0c, bno=109, size=4096) at
/usr/src/sys/ufs/ffs/ffs_alloc.c:1421
#5 0xc024dd6e in handle_workitem_freeblocks (freeblks=0xc7142880) at
/usr/src/sys/ufs/ffs/ffs_softdep.c:2153
#6 0xc024c1eb in process_worklist_item (matchmnt=0x0, flags=0) at
/usr/src/sys/ufs/ffs/ffs_softdep.c:741
#7 0xc024c07e in softdep_process_worklist (matchmnt=0x0) at
/usr/src/sys/ufs/ffs/ffs_softdep.c:664
#8 0xc01ab503 in sched_sync () at /usr/src/sys/kern/vfs_subr.c:1201
(kgdb) up 4
#4 0xc02494b3 in ffs_blkfree (ip=0xe3654e0c, bno=109, size=4096) at
/usr/src/sys/ufs/ffs/ffs_alloc.c:1421
1421 ffs_fserr(fs, ip->i_uid, "bad block");
(kgdb) list 1396,1421
1396 ffs_blkfree(ip, bno, size)
1397 register struct inode *ip;
1398 ufs_daddr_t bno;
1399 long size;
1400 {
1401 register struct fs *fs;
1402 register struct cg *cgp;
1403 struct buf *bp;
1404 ufs_daddr_t blkno;
1405 int i, error, cg, blk, frags, bbase;
1406 u_int8_t *blksfree;
1407
1408 fs = ip->i_fs;
1409 VOP_FREEBLKS(ip->i_devvp, fsbtodb(fs, bno), size);
1410 if ((u_int)size > fs->fs_bsize || fragoff(fs, size) != 0
||
1411 fragnum(fs, bno) + numfrags(fs, size) > fs->fs_frag) {
1412 printf("dev=%s, bno = %ld, bsize = %ld, size = %ld,
fs = %s\n",
1413 devtoname(ip->i_dev), (long)bno,
(long)fs->fs_bsize, size,
1414 fs->fs_fsmnt);
1415 panic("ffs_blkfree: bad size");
1416 }
1417 cg = dtog(fs, bno);
1418 if ((u_int)bno >= fs->fs_size) {
1419 printf("bad block %ld, ino %lu\n",
1420 (long)bno, (u_long)ip->i_number);
1421 ffs_fserr(fs, ip->i_uid, "bad block");
(kgdb) print fs
$1 = (struct fs *) 0x0
(kgdb) print ip->inode_u.fs
$2 = (struct fs *) 0xc3fea000
(kgdb) print ip->i_devvp
$3 = (struct vnode *) 0xe36440c0
(kgdb) print bno
$4 = 109
(kgdb) print size
$5 = 0
(kgdb) quit
repeat after me: Macros are evil :))
--
i j hart
ICT Technician
Cardinal Newman Catholic School & Community College