On Mar 15, Mathew Kanner wrote:
> On Mar 15, Greg Lehey wrote:
> > attention yet, but I do see that your problem relates to soft
> > updates. It's not clear that the soft updates themselves are a cause
> > of the problem, or just a facilitator, but it would be interesting to
> I did try it couple of days back with and without softupdates.
> Softupdates only made the problems appear more quickly but
> I've lost track of all the combinations that's I've tried so I
> should try one more time without.
After some more time spent with the system. It turns out it
is softupdates. I can complete the script (which copies /usr/ports to
a newfs'ed system) without softupdates but with, it will stall and
then crash. An interesting note, with softupdates, during a stall I
did a sysctl vfs.hidirtbuffers=500 and it completed, howver, if I do
this before running the script, it crashes as well (but doesn't take
nearly as long to do so).
Included is a traceback of when it crashed witht he hibuffers
at 500.
--Mat
Script started on Thu Mar 23 15:23:03 2000
bash-2.03# gdb -k
GNU gdb 4.18
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) core[Kexec-file kernel2.
kernel2.: No such file or directory.
(kgdb) ecxxec-file kernel.2
(kgdb) coresuymbol-file /usr/src/sys/compile/KZAZE/kernel.debug
Reading symbols from /usr/src/sys/compile/KAZE/kernel.debug...done.
(kgdb) core-file vmcore.2
IdlePTD 4165632
initial pcb at 364ea0
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x0
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc026745a
stack pointer = 0x10:0xc03218e4
frame pointer = 0x10:0xc03218f0
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = Idle
interrupt mask = bio
trap number = 12
panic: page fault
syncing disks...
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x30
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc025e10c
stack pointer = 0x10:0xc032171c
frame pointer = 0x10:0xc0321720
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = Idle
interrupt mask = bio
trap number = 12
panic: page fault
Uptime: 6m53s
dumping to dev #ad/0x20001, offset 3047552
dump ata0: resetting devices .. done
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 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 0xc017f688 in boot ()
(kgdb) where
#0 0xc017f688 in boot ()
#1 0xc017fa0c in poweroff_wait ()
#2 0xc02ba969 in trap_fatal ()
#3 0xc02ba641 in trap_pfault ()
#4 0xc02ba237 in trap ()
#5 0xc025e10c in acquire_lock ()
#6 0xc026327c in softdep_count_dependencies ()
#7 0xc02663b0 in ffs_fsync ()
#8 0xc0264f5f in ffs_sync ()
#9 0xc01aac93 in sync ()
#10 0xc017f45b in boot ()
#11 0xc017fa0c in poweroff_wait ()
#12 0xc02ba969 in trap_fatal ()
#13 0xc02ba641 in trap_pfault ()
#14 0xc02ba237 in trap ()
#15 0xc026745a in bufqdisksort ()
#16 0xc0290c21 in adstrategy ()
#17 0xc0188779 in diskstrategy ()
#18 0xc274da58 in ?? ()
#19 0xc274d3ba in ?? ()
#20 0xc01a329f in biodone ()
#21 0xc02913f2 in ad_interrupt ()
#22 0xc028ddea in ata_intr ()
#23 0xc02ccfe1 in intr_mux ()
(kgdb) bash-2.03# exit
Script done on Thu Mar 23 15:23:36 2000
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-current" in the body of the message
