Date: Tue, 27 Aug 2002 01:30:04 -0700 (PDT) From: Arnvid Karstad <arnvid@karstad.org> To: freebsd-bugs@FreeBSD.org Subject: Re: i386/42046: System crashes Message-ID: <200208270830.g7R8U4ig034344@freefall.freebsd.org>
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The following reply was made to PR i386/42046; it has been noted by GNATS.
From: Arnvid Karstad <arnvid@karstad.org>
To: Giorgos Keramidas <keramida@FreeBSD.org>
Cc: bug-followup@FreeBSD.org
Subject: Re: i386/42046: System crashes
Date: Tue, 27 Aug 2002 10:24:05 +0200
root@irc:/home/crash# gdb -k kernel.debug vmcore.1 =20
GNU gdb 4.18 (FreeBSD)
Copyright 1998 Free Software Foundation, Inc.
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welcome to change it and/or distribute copies of it under certain condition=
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This GDB was configured as "i386-unknown-freebsd"...
IdlePTD at phsyical address 0x00315000
initial pcb at physical address 0x0028a000
panicstr: from debugger
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address =3D 0x0
fault code =3D supervisor write, page not present
instruction pointer =3D 0x8:0xc021c207
stack pointer =3D 0x10:0xff01ac7c
frame pointer =3D 0x10:0xff01acb0
code segment =3D base 0x0, limit 0xfffff, type 0x1b
=3D DPL 0, pres 1, def32 1, gran 1
processor eflags =3D interrupt enabled, resume, IOPL =3D 0
current process =3D 348 (find)
interrupt mask =3D bio=20
panic: from debugger
panic: from debugger
Uptime: 8h31m50s
dumping to dev #da/0x20001, offset 2590568
dump 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 1223 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 1178 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 1133 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 95=
7 956 955 954 953 952 951 950 949 948 947 946 945 944 943 942 941 940 939 9=
38 937 936 935 934 933 932 931 930 929 928 927 926 925 924 923 922 921 920 =
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 88=
2 881 880 879 878 877 876 875 874 873 872 871 870 869 868 867 866 865 864 8=
63 862 861 860 859 858 857 856 855 854 853 852 851 850 849 848 847 846 845 =
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 80=
7 806 805 804 803 802 801 800 799 798 797 796 795 794 793 792 791 790 789 7=
88 787 786 785 784 783 782 781 780 779 778 777 776 775 774 773 772 771 770 =
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 73=
2 731 730 729 728 727 726 725 724 723 722 721 720 719 718 717 716 715 714 7=
13 712 711 710 709 708 707 706 705 704 703 702 701 700 699 698 697 696 695 =
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 65=
7 656 655 654 653 652 651 650 649 648 647 646 645 644 643 642 641 640 639 6=
38 637 636 635 634 633 632 631 630 629 628 627 626 625 624 623 622 621 620 =
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 58=
2 581 580 579 578 577 576 575 574 573 572 571 570 569 568 567 566 565 564 5=
63 562 561 560 559 558 557 556 555 554 553 552 551 550 549 548 547 546 545 =
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 50=
7 506 505 504 503 502 501 500 499 498 497 496 495 494 493 492 491 490 489 4=
88 487 486 485 484 483 482 481 480 479 478 477 476 475 474 473 472 471 470 =
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 43=
2 431 430 429 428 427 426 425 424 423 422 421 420 419 418 417 416 415 414 4=
13 412 411 410 409 408 407 406 405 404 403 402 401 400 399 398 397 396 395 =
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 35=
7 356 355 354 353 352 351 350 349 348 347 346 345 344 343 342 341 340 339 3=
38 337 336 335 334 333 332 331 330 329 328 327 326 325 324 323 322 321 320 =
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 28=
2 281 280 279 278 277 276 275 274 273 272 271 270 269 268 267 266 265 264 2=
63 262 261 260 259 258 257 256 255 254 253 252 251 250 249 248 247 246 245 =
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 20=
7 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 1=
88 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 =
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 13=
2 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 1=
13 112 111 110 109 108 107 106 105 104 103 102 101 100 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=20
---
#0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
487 if (dumping++) {
(kgdb) where
#0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:487
#1 0xc015ca6c in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:3=
16
#2 0xc015ceb9 in panic (fmt=3D0xc0236da4 "from debugger") at /usr/src/sys/=
kern/kern_shutdown.c:595
#3 0xc012ea65 in db_panic (addr=3D-1071529465, have_addr=3D0, count=3D-1, =
modif=3D0xff01aae8 "") at /usr/src/sys/ddb/db_command.c:435
#4 0xc012ea03 in db_command (last_cmdp=3D0xc0269b98, cmd_table=3D0xc02699d=
8, aux_cmd_tablep=3D0xc0285578)
at /usr/src/sys/ddb/db_command.c:333
#5 0xc012eaca in db_command_loop () at /usr/src/sys/ddb/db_command.c:457
#6 0xc0130c9b in db_trap (type=3D12, code=3D0) at /usr/src/sys/ddb/db_trap.=
c:71
#7 0xc0210378 in kdb_trap (type=3D12, code=3D0, regs=3D0xff01ac3c) at /usr=
/src/sys/i386/i386/db_interface.c:158
#8 0xc021d700 in trap_fatal (frame=3D0xff01ac3c, eva=3D0) at /usr/src/sys/=
i386/i386/trap.c:961
#9 0xc021d3c1 in trap_pfault (frame=3D0xff01ac3c, usermode=3D0, eva=3D0) a=
t /usr/src/sys/i386/i386/trap.c:859
#10 0xc021cf53 in trap (frame=3D{tf_fs =3D 16, tf_es =3D -637534192, tf_ds =
=3D -221052912, tf_edi =3D 0, tf_esi =3D -619887872,=20
tf_ebp =3D -16667472, tf_isp =3D -16667544, tf_ebx =3D 0, tf_edx =3D =
0, tf_ecx =3D 42, tf_eax =3D 0, tf_trapno =3D 12, tf_err =3D 2,=20
tf_eip =3D -1071529465, tf_cs =3D 8, tf_eflags =3D 66050, tf_esp =3D =
-221036064, tf_ss =3D -1072127810})
at /usr/src/sys/i386/i386/trap.c:458
#11 0xc021c207 in generic_bzero ()
#12 0xc01e1534 in ffs_vget (mp=3D0xda1bfe00, ino=3D356949, vpp=3D0xff01ad60=
) at /usr/src/sys/ufs/ffs/ffs_vfsops.c:1109
#13 0xc01e42d7 in ufs_lookup (ap=3D0xff01adb8) at /usr/src/sys/ufs/ufs/ufs_=
lookup.c:611
#14 0xc01e8c2d in ufs_vnoperate (ap=3D0xff01adb8) at /usr/src/sys/ufs/ufs/u=
fs_vnops.c:2422
#15 0xc018637e in vfs_cache_lookup (ap=3D0xff01ae10) at vnode_if.h:77
#16 0xc01e8c2d in ufs_vnoperate (ap=3D0xff01ae10) at /usr/src/sys/ufs/ufs/u=
fs_vnops.c:2422
#17 0xc018935d in lookup (ndp=3D0xff01ae8c) at vnode_if.h:52
#18 0xc0188e48 in namei (ndp=3D0xff01ae8c) at /usr/src/sys/kern/vfs_lookup.=
c:153
#19 0xc018ecb9 in lstat (p=3D0xf2d341e0, uap=3D0xff01af80) at /usr/src/sys/=
kern/vfs_syscalls.c:1823
#20 0xc021d99d in syscall2 (frame=3D{tf_fs =3D 134545455, tf_es =3D 1345454=
55, tf_ds =3D -1078001617, tf_edi =3D 134562304,=20
tf_esi =3D 134562376, tf_ebp =3D -1077937392, tf_isp =3D -16666668, t=
f_ebx =3D 672084388, tf_edx =3D 4, tf_ecx =3D 134562368,=20
tf_eax =3D 190, tf_trapno =3D 12, tf_err =3D 2, tf_eip =3D 671764108,=
tf_cs =3D 31, tf_eflags =3D 663, tf_esp =3D -1077937532, tf_ss =3D 47})
at /usr/src/sys/i386/i386/trap.c:1167
#21 0xc0211285 in Xint0x80_syscall ()
#22 0x280a14dd in ?? ()
#23 0x280a0d5a in ?? ()
#24 0x80496e6 in ?? ()
#25 0x804b5ec in ?? ()
#26 0x8049395 in ?? ()
(kgdb)=20
(kgdb) up 11
#11 0xc021c207 in generic_bzero ()
(kgdb) up 1
#12 0xc01e1534 in ffs_vget (mp=3D0xda1bfe00, ino=3D356949, vpp=3D0xff01ad60=
) at /usr/src/sys/ufs/ffs/ffs_vfsops.c:1109
1109 error =3D getnewvnode(VT_UFS, mp, ffs_vnodeop_p, &vp);
(kgdb) p &vp
$1 =3D (struct vnode **) 0xff01acec
(kgdb) p ffs_vnodeop_p
$2 =3D (vop_t **) 0xd9fec000
(kgdb) p mp
$3 =3D (struct mount *) 0xda1bfe00
(kgdb) p VT_UFS
$4 =3D VT_UFS
(kgdb)=20
(kgdb) down 1
#11 0xc021c207 in generic_bzero ()
(kgdb) up 2
#13 0xc01e42d7 in ufs_lookup (ap=3D0xff01adb8) at /usr/src/sys/ufs/ufs/ufs_=
lookup.c:611
611 error =3D VFS_VGET(vdp->v_mount, dp->i_ino, &tdp);
(kgdb) up 1
#14 0xc01e8c2d in ufs_vnoperate (ap=3D0xff01adb8) at /usr/src/sys/ufs/ufs/u=
fs_vnops.c:2422
2422 return (VOCALL(ufs_vnodeop_p, ap->a_desc->vdesc_offset, ap)=
);
(kgdb) up 1
#15 0xc018637e in vfs_cache_lookup (ap=3D0xff01ae10) at vnode_if.h:77
77 rc =3D VCALL(dvp, VOFFSET(vop_cachedlookup), &a);
(kgdb) up 1
#16 0xc01e8c2d in ufs_vnoperate (ap=3D0xff01ae10) at /usr/src/sys/ufs/ufs/u=
fs_vnops.c:2422
2422 return (VOCALL(ufs_vnodeop_p, ap->a_desc->vdesc_offset, ap)=
);
Mvh/Best regards,
Arnvid L. Karstad
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