Date: Fri, 14 Mar 2003 12:39:33 -0800 From: Ryan Dooley <ryan@third-man.com> To: stable@freebsd.org Subject: [LONG] 4.7-stable freeing free block panic Message-ID: <20030314203933.GB59999@elvis.mu.org>
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Hey all,
File server running 4.7-stable (02Nov2002) panic'd today with:
ffs_blkfree: freeing free block.
Here is the back trace for that system:
nitrogen# gdb -k /usr/src/sys/compile/DELL_6450/kernel.debug /var/crash/vmc=
ore.0
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 condition=
s.
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"...Deprecated bfd_read cal=
led at /usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb/gdb/dbxrea=
d.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
SMP 2 cpus
IdlePTD at phsyical address 0x0043a000
initial pcb at physical address 0x00397fe0
panicstr: ffs_blkfree: freeing free block
panic messages:
---
panic: ffs_blkfree: freeing free block
mp_lock =3D 00000001; cpuid =3D 0; lapic.id =3D 01000000
boot() called on cpu#0
syncing disks... 25 4 4 4 4 4 4 4 10 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
giving up on 4 buffers
Uptime: 48d19h17m22s
dumping to dev #da/0x20001, offset 6291472
dump 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 99=
2 991 990 989 988 987 986 985 984 983 982 981 980 979 978 977 976 975 974 9=
73 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 =
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 91=
7 916 915 914 913 912 911 910 909 908 907 906 905 904 903 902 901 900 899 8=
98 897 896 895 894 893 892 891 890 889 888 887 886 885 884 883 882 881 880 =
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 84=
2 841 840 839 838 837 836 835 834 833 832 831 830 829 828 827 826 825 824 8=
23 822 821 820 819 818 817 816 815 814 813 812 811 810 809 808 807 806 805 =
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 76=
7 766 765 764 763 762 761 760 759 758 757 756 755 754 753 752 751 750 749 7=
48 747 746 745 744 743 742 741 740 739 738 737 736 735 734 733 732 731 730 =
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 69=
2 691 690 689 688 687 686 685 684 683 682 681 680 679 678 677 676 675 674 6=
73 672 671 670 669 668 667 666 665 664 663 662 661 660 659 658 657 656 655 =
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 61=
7 616 615 614 613 612 611 610 609 608 607 606 605 604 603 602 601 600 599 5=
98 597 596 595 594 593 592 591 590 589 588 587 586 585 584 583 582 581 580 =
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 54=
2 541 540 539 538 537 536 535 534 533 532 531 530 529 528 527 526 525 524 5=
23 522 521 520 519 518 517 516 515 514 513 512 511 510 509 508 507 506 505 =
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 46=
7 466 465 464 463 462 461 460 459 458 457 456 455 454 453 452 451 450 449 4=
48 447 446 445 444 443 442 441 440 439 438 437 436 435 434 433 432 431 430 =
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 39=
2 391 390 389 388 387 386 385 384 383 382 381 380 379 378 377 376 375 374 3=
73 372 371 370 369 368 367 366 365 364 363 362 361 360 359 358 357 356 355 =
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 31=
7 316 315 314 313 312 311 310 309 308 307 306 305 304 303 302 301 300 299 2=
98 297 296 295 294 293 292 291 290 289 288 287 286 285 284 283 282 281 280 =
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 24=
2 241 240 239 238 237 236 235 234 233 232 231 230 229 228 227 226 225 224 2=
23 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208 207 206 205 =
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 16=
7 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 1=
48 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 =
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 29 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 dumpsys () at ../../kern/kern_shutdown.c:487
487 if (dumping++) {
(kgdb) bt
#0 dumpsys () at ../../kern/kern_shutdown.c:487
#1 0xc018f04f in boot (howto=3D256) at ../../kern/kern_shutdown.c:316
#2 0xc018f4a8 in poweroff_wait (junk=3D0xc0352200, howto=3D-1070259744)
at ../../kern/kern_shutdown.c:595
#3 0xc0248706 in ffs_blkfree (ip=3D0xe9f94e0c, bno=3D74488, size=3D65536)
at ../../ufs/ffs/ffs_alloc.c:1444
#4 0xc024d08b in indir_trunc (ip=3D0xe9f94e0c, dbn=3D1991437568, level=3D0,
lbn=3D425996, countp=3D0xe9f94dfc) at ../../ufs/ffs/ffs_softdep.c:2233
#5 0xc024d074 in indir_trunc (ip=3D0xe9f94e0c, dbn=3D1991437440, level=3D1,
lbn=3D16396, countp=3D0xe9f94dfc) at ../../ufs/ffs/ffs_softdep.c:2229
#6 0xc024ce45 in handle_workitem_freeblocks (freeblks=3D0xcdc01b80)
at ../../ufs/ffs/ffs_softdep.c:2133
#7 0xc024b347 in process_worklist_item (matchmnt=3D0x0, flags=3D0)
at ../../ufs/ffs/ffs_softdep.c:723
#8 0xc024b1de in softdep_process_worklist (matchmnt=3D0x0)
at ../../ufs/ffs/ffs_softdep.c:622
#9 0xc01bcf9b in sched_sync () at ../../kern/vfs_subr.c:1177
I've scheduled an update for the system when spring break rolls around
for us (in another week). Since this was a once in a blue-moon thing (i.e.,
this is the first time I've seen this panic in the two years the system
has been operational :-), I'm not in any rush.
Cheers,
Ryan
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