[OpenAFS-port-freebsd] Kernel panic on fs mkmount

[Richard Jones]

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Hi,

I'm getting a kernel panic whenever I try and "fs mkmount".

for example:

# vos create daedalus.jonze.com /vicepa usr
# fs mkmount -dir /afs/.jonze.com/usr -vol usr

I was asked for a stack trace on the openafs-info list. I've never tried
to debug anything before[1] let alone a kernel dump, so I had a look at
the developers handbook, compiled a debug kernel and managed to produce
a kernel.0 and vmcore.0.

Then according to the handbook I did the following:

# cd /usr/src/sys/compile/DEBUG
# gdb -k
(kgdb) symbol-file kernel.debug
(kgdb) exec-file /usr/local/var/crash/kernel.0
(kgdb) core-file /usr/local/var/crash/vmcore.0

And the output is attached, but it doesn't look very useful. Can anyone
help, can I provide any more useful information? And let me know if this
is inappropriate for the list, previous posts seem to imply that this
list is several orders more clueful than me :-|

Cheers,

Richard

-- 
Richard Jones
http://www.jonze.com

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Script started on Fri May 16 16:33:34 2003
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".
(kgdb) symbol-file kernel.debug
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 /usr/local/var/crash/kernel.0
(kgdb) core-file /usr/local/var/crash/vmcore.0
IdlePTD at phsyical address 0x00588000
initial pcb at physical address 0x003720e0
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address	=3D 0x4
fault code		=3D supervisor read, page not present
instruction pointer	=3D 0x8:0xc01a6ddf
stack pointer	        =3D 0x10:0xee9f6e30
frame pointer	        =3D 0x10:0xee9f6e44
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 713 (fs)
interrupt mask		=3D none
trap number		=3D 12
panic: page fault

syncing disks... 3=20
done
Uptime: 47m52s

dumping to dev #ad/0x20006, offset 786432
dump ata0: resetting devices .. done
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 60=
3 602 601 600 599 598 597 596 595 594 593 592 591 590 589 588 587 586 585 5=
84 583 582 581 580 579 578 577 576 575 574 573 572 571 570 569 568 567 566 =
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 52=
8 527 526 525 524 523 522 521 520 519 518 517 516 515 514 513 512 511 510 5=
09 508 507 506 505 504 503 502 501 500 499 498 497 496 495 494 493 492 491 =
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 45=
3 452 451 450 449 448 447 446 445 444 443 442 441 440 439 438 437 436 435 4=
34 433 432 431 430 429 428 427 426 425 424 423 422 421 420 419 418 417 416 =
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 37=
8 377 376 375 374 373 372 371 370 369 368 367 366 365 364 363 362 361 360 3=
59 358 357 356 355 354 353 352 351 350 349 348 347 346 345 344 343 342 341 =
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 30=
3 302 301 300 299 298 297 296 295 294 293 292 291 290 289 288 287 286 285 2=
84 283 282 281 280 279 278 277 276 275 274 273 272 271 270 269 268 267 266 =
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 22=
8 227 226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 2=
09 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 =
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 15=
3 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 1=
34 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 =
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=20
---
#0  dumpsys () at ../../kern/kern_shutdown.c:487
487		if (dumping++) {
(kgdb)=20
Script done on Fri May 16 16:34:08 2003

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