Date: Fri, 16 Jun 2000 18:55:01 -0500 (CDT) From: Kevin Day <toasty@dragondata.com> To: freebsd-current@freebsd.org Cc: mckusick@mckusick.com Subject: Panic with userquota(softupdates?) Message-ID: <200006162355.SAA03404@celery.dragondata.com>
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I keep getting panics in dqget(ufs_quota.c), with a -current from a couple
of days ago. I think this might be softupdates related, since I can't make
it happen with softupdates turned off, although it's quite possible that it
has nothing to do with it. Does anyone have any idea what might be causing
this?
Any other information that might be useful here?
-- Kevin
SMP 2 cpus
IdlePTD 3813376
initial pcb at 3178c0
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
mp_lock = 00000002; cpuid = 0; lapic.id = 00000000
fault virtual address = 0x0
fault code = supervisor write, page not present
instruction pointer = 0x8:0xc023d3d2
stack pointer = 0x10:0xd9176d28
frame pointer = 0x10:0xd9176d78
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 = 3384 (smbd)
interrupt mask = none <- SMP: XXX
trap number = 12
panic: page fault
mp_lock = 00000002; cpuid = 0; lapic.id = 00000000
boot() called on cpu#0
syncing disks...
done
Uptime: 5h9m37s
dumping to dev #da/0x20001, offset 1735462
dump 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 26!
5 264 263 262 261 260 259 258 257 256 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 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 boot (howto=256) at ../../kern/kern_shutdown.c:303
303 dumppcb.pcb_cr3 = rcr3();
(kgdb) bt
#0 boot (howto=256) at ../../kern/kern_shutdown.c:303
#1 0xc016a2d9 in panic (fmt=0xc02c532f "page fault") at ../../kern/kern_shutdown.c:553
#2 0xc0282190 in trap_fatal (frame=0xd9176ce8, eva=0) at ../../i386/i386/trap.c:927
#3 0xc0281e01 in trap_pfault (frame=0xd9176ce8, usermode=0, eva=0) at ../../i386/i386/trap.c:820
#4 0xc028196b in trap (frame={tf_fs = 24, tf_es = 16, tf_ds = -652804080, tf_edi = -653726848,
tf_esi = -1041411164, tf_ebp = -652776072, tf_isp = -652776172, tf_ebx = -1038103936,
tf_edx = 0, tf_ecx = -1012515072, tf_eax = 0, tf_trapno = 12, tf_err = 2,
tf_eip = -1071393838, tf_cs = 8, tf_eflags = 66118, tf_esp = -1012515072, tf_ss = -633865984})
at ../../i386/i386/trap.c:426
#5 0xc023d3d2 in dqget (vp=0xda37f900, id=65534, ump=0xc1f76200, type=0, dqp=0xc3a63f44)
at ../../ufs/ufs/ufs_quota.c:763
#6 0xc023c796 in getinoquota (ip=0xc3a63f00) at ../../ufs/ufs/ufs_quota.c:95
#7 0xc023ddb5 in ufs_access (ap=0xd9176dfc) at ../../ufs/ufs/ufs_vnops.c:324
#8 0xc02408e9 in ufs_vnoperate (ap=0xd9176dfc) at ../../ufs/ufs/ufs_vnops.c:2287
#9 0xc019fc4b in vn_open (ndp=0xd9176ec8, fmode=3, cmode=484) at vnode_if.h:247
#10 0xc019bd8d in open (p=0xd916eac0, uap=0xd9176f80) at ../../kern/vfs_syscalls.c:995
#11 0xc02824c1 in syscall2 (frame={tf_fs = 47, tf_es = 47, tf_ds = -1078001617,
tf_edi = -1077940192, tf_esi = 144677504, tf_ebp = -1077939168, tf_isp = -652775468,
tf_ebx = 484, tf_edx = 2, tf_ecx = 135418240, tf_eax = 5, tf_trapno = 7, tf_err = 2,
tf_eip = 673002960, tf_cs = 31, tf_eflags = 663, tf_esp = -1077941548, tf_ss = 47})
at ../../i386/i386/trap.c:1126
#12 0xc027027b in Xint0x80_syscall ()
#13 0x80796b1 in ?? ()
#14 0x8068c32 in ?? ()
#15 0x424d53ff in ?? ()
Cannot access memory at address 0x23000000.
(kgdb) up
#1 0xc016a2d9 in panic (fmt=0xc02c532f "page fault") at ../../kern/kern_shutdown.c:553
553 boot(bootopt);
(kgdb) up
#2 0xc0282190 in trap_fatal (frame=0xd9176ce8, eva=0) at ../../i386/i386/trap.c:927
927 panic(trap_msg[type]);
(kgdb) up
#3 0xc0281e01 in trap_pfault (frame=0xd9176ce8, usermode=0, eva=0) at ../../i386/i386/trap.c:820
820 trap_fatal(frame, eva);
(kgdb) up
#4 0xc028196b in trap (frame={tf_fs = 24, tf_es = 16, tf_ds = -652804080, tf_edi = -653726848,
tf_esi = -1041411164, tf_ebp = -652776072, tf_isp = -652776172, tf_ebx = -1038103936,
tf_edx = 0, tf_ecx = -1012515072, tf_eax = 0, tf_trapno = 12, tf_err = 2,
tf_eip = -1071393838, tf_cs = 8, tf_eflags = 66118, tf_esp = -1012515072, tf_ss = -633865984})
at ../../i386/i386/trap.c:426
426 (void) trap_pfault(&frame, FALSE, eva);
(kgdb) up
#5 0xc023d3d2 in dqget (vp=0xda37f900, id=65534, ump=0xc1f76200, type=0, dqp=0xc3a63f44)
at ../../ufs/ufs/ufs_quota.c:763
763 TAILQ_REMOVE(&dqfreelist, dq, dq_freelist);
(kgdb) list
758 /*
759 * Cache hit with no references. Take
760 * the structure off the free list.
761 */
762 if (dq->dq_cnt == 0)
763 TAILQ_REMOVE(&dqfreelist, dq, dq_freelist);
764 DQREF(dq);
765 *dqp = dq;
766 return (0);
767 }
(kgdb) print *dq
Cannot access memory at address 0x0.
(kgdb) print dqfreelist
$1 = {tqh_first = 0x0, tqh_last = 0x0}
(kgdb) up
#6 0xc023c796 in getinoquota (ip=0xc3a63f00) at ../../ufs/ufs/ufs_quota.c:95
95 if (ip->i_dquot[USRQUOTA] == NODQUOT &&
(kgdb) list
90 ump = VFSTOUFS(vp->v_mount);
91 /*
92 * Set up the user quota based on file uid.
93 * EINVAL means that quotas are not enabled.
94 */
95 if (ip->i_dquot[USRQUOTA] == NODQUOT &&
96 (error =
97 dqget(vp, ip->i_uid, ump, USRQUOTA, &ip->i_dquot[USRQUOTA])) &&
98 error != EINVAL)
99 return (error);
(kgdb) print *ip
$3 = {i_lock = {lk_interlock = {lock_data = 0}, lk_flags = 1088, lk_sharecount = 0,
lk_waitcount = 0, lk_exclusivecount = 1, lk_prio = 8, lk_wmesg = 0xc02b8782 "inode",
lk_timo = 0, lk_lockholder = 3384}, i_hash = {le_next = 0xc2cdc100, le_prev = 0xc1eb6238},
i_vnode = 0xda37f900, i_devvp = 0xd694c480, i_flag = 128, i_dev = 0xc20ccc00, i_number = 1543310,
i_effnlink = 1, inode_u = {fs = 0xc20bf800, e2fs = 0xc20bf800}, i_dquot = {0x0, 0x0},
i_modrev = 79788453508906, i_lockf = 0x0, i_count = 0, i_endoff = 0, i_diroff = 0, i_offset = 0,
i_ino = 0, i_reclen = 0, i_spare = {0, 0, 0, 0}, i_din = {di_mode = 33252, di_nlink = 1, di_u = {
oldids = {0, 0}, inumber = 0}, di_size = 1573, di_atime = 944101460, di_atimensec = 0,
di_mtime = 957925745, di_mtimensec = 0, di_ctime = 961126653, di_ctimensec = 0, di_db = {
49643207, 0 <repeats 11 times>}, di_ib = {0, 0, 0}, di_flags = 0, di_blocks = 4,
di_gen = 78167767, di_uid = 65534, di_gid = 65534, di_spare = {0, 0}}}
(kgdb) print ip->i_dquot
$4 = {0x0, 0x0}
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