Date: Tue, 5 Feb 2002 08:40:04 +0100 From: Miklos Niedermayer <mico@bsd.hu> To: Chris BeHanna <behanna@zbzoom.net> Cc: FreeBSD-Stable <stable@freebsd.org> Subject: lockmgr: locking against myself (was Re: 4.5 panic) Message-ID: <20020205084004.A365@bsd.hu> In-Reply-To: <20020204235441.S77182-100000@topperwein.dyndns.org> References: <20020202124805.A384@bsd.hu> <20020204235441.S77182-100000@topperwein.dyndns.org>
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[-- Attachment #1 --]
Hi,
On Mon, Feb 04, 2002 at 11:55:26PM -0500, Chris BeHanna wrote:
> Just a WAG, but have you built an SMP kernel for a UP machine?
No, it's an UP kernel. Kernel config is attached. I can make vmcore
and kernel.debug available if anyone has time to take a look at it, as this
would be a production server if the crashes didn't happen :(
______ o _. __
/ / / (_(_(__(_) @ bsd.hu
[-- Attachment #2 --]
machine i386
cpu I686_CPU
ident Lappi
maxusers 0
makeoptions DEBUG=-g
options MAXDSIZ="(512*1024*1024)"
options MAXSSIZ="(512*1024*1024)"
options DFLDSIZ="(256*1024*1024)"
options INET #InterNETworking
options INET6 #IPv6 communications protocols
options FFS #Berkeley Fast Filesystem
options FFS_ROOT #FFS usable as root device [keep this!]
options SOFTUPDATES #Enable FFS soft updates support
options MFS #Memory Filesystem
options CD9660 #ISO 9660 Filesystem
options PROCFS #Process filesystem
options COMPAT_43 #Compatible with BSD 4.3 [KEEP THIS!]
options SCSI_DELAY=5000 #Delay (in ms) before probing SCSI
options SYSVSHM #SYSV-style shared memory
options SYSVMSG #SYSV-style message queues
options SYSVSEM #SYSV-style semaphores
options P1003_1B #Posix P1003_1B real-time extensions
options _KPOSIX_PRIORITY_SCHEDULING
options ICMP_BANDLIM #Rate limit bad replies
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
# Firewall
options IPFILTER
options IPFILTER_LOG
options TCP_DROP_SYNFIN
options ICMP_BANDLIM #Rate limit bad replies
options NMBCLUSTERS=16384
options NBUF=4096
device isa
device pci
# ATA and ATAPI devices
device ata0 at isa? port IO_WD1 irq 14
device ata1 at isa? port IO_WD2 irq 15
device ata
device atadisk # ATA disk drives
device atapicd # ATAPI CDROM drives
device atapifd # ATAPI floppy drives
device atapist # ATAPI tape drives
options ATA_STATIC_ID #Static device numbering
# SCSI Controllers
device ahc # AHA2940 and onboard AIC7xxx devices
options SYM_SETUP_LP_PROBE_MAP=0x40
# SCSI peripherals
device scbus # SCSI bus (required)
device da # Direct Access (disks)
device sa # Sequential Access (tape etc)
device cd # CD
device pass # Passthrough device (direct SCSI access)
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc0 at isa? port IO_KBD
device atkbd0 at atkbdc? irq 1 flags 0x1
device psm0 at atkbdc? irq 12
device vga0 at isa?
pseudo-device splash
device sc0 at isa? flags 0x100
device npx0 at nexus? port IO_NPX irq 13
device apm0 at nexus? disable flags 0x20 # Advanced Power Management
# Serial (COM) ports
device sio0 at isa? port IO_COM1 flags 0x10 irq 4
device sio1 at isa? port IO_COM2 irq 3
device sio2 at isa? disable port IO_COM3 irq 5
device sio3 at isa? disable port IO_COM4 irq 9
device rl # RealTek 8129/8139
device dc
device tx
device miibus
pseudo-device loop # Network loopback
pseudo-device ether # Ethernet support
pseudo-device sl 1 # Kernel SLIP
pseudo-device ppp 1 # Kernel PPP
pseudo-device tun # Packet tunnel.
pseudo-device pty # Pseudo-ttys (telnet etc)
pseudo-device md # Memory "disks"
pseudo-device gif # IPv6 and IPv4 tunneling
pseudo-device faith 1 # IPv6-to-IPv4 relaying (translation)
pseudo-device bpf #Berkeley packet filter
pseudo-device vn
options HZ=1000
options RANDOM_IP_ID
options ACCEPT_FILTER_HTTP
options UFS_DIRHASH
options QUOTA
[-- Attachment #3 --]
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"...
IdlePTD at phsyical address 0x003be000
initial pcb at physical address 0x002af480
panicstr: lockmgr: locking against myself
panic messages:
---
panic: lockmgr: locking against myself
syncing disks... 90 22 10 7 5 2
done
Uptime: 3d21h37m24s
dumping to dev #da/0x20009, offset 524448
dump 767 766 765 764 763 762 761 760 759 758 757 756 755 754 753 752 751 750 749 748 747 746 745 744 743 742 741 740 739 738 737 736 735 734 733 732 731 730 729 728 727 726 725 724 723 722 721 720 719 718 717 716 715 714 713 712 711 710 709 708 707 706 705 704 703 702 701 700 699 698 697 696 695 694 693 692 691 690 689 688 687 686 685 684 683 682 681 680 679 678 677 676 675 674 673 672 671 670 669 668 667 666 665 664 663 662 661 660 659 658 657 656 655 654 653 652 651 650 649 648 647 646 645 644 643 642 641 640 639 638 637 636 635 634 633 632 631 630 629 628 627 626 625 624 623 622 621 620 619 618 617 616 615 614 613 612 611 610 609 608 607 606 605 604 603 602 601 600 599 598 597 596 595 594 593 592 591 590 589 588 587 586 585 584 583 582 581 580 579 578 577 576 575 574 573 572 571 570 569 568 567 566 565 564 563 562 561 560 559 558 557 556 555 554 553 552 551 550 549 548 547 546 545 544 543 542 541 540 539 538 537 536 535 534 533 532 531 530 529 528 527 526 525 524 523 522 !
521 520 519 518 517 516 515 514 51
3 512 511 510 509 508 507 506 505 504 503 502 501 500 499 498 497 496 495 494 493 492 491 490 489 488 487 486 485 484 483 482 481 480 479 478 477 476 475 474 473 472 471 470 469 468 467 466 465 464 463 462 461 460 459 458 457 456 455 454 453 452 451 450 449 448 447 446 445 444 443 442 441 440 439 438 437 436 435 434 433 432 431 430 429 428 427 426 425 424 423 422 421 420 419 418 417 416 415 414 413 412 411 410 409 408 407 406 405 404 403 402 401 400 399 398 397 396 395 394 393 392 391 390 389 388 387 386 385 384 383 382 381 380 379 378 377 376 375 374 373 372 371 370 369 368 367 366 365 364 363 362 361 360 359 358 357 356 355 354 353 352 351 350 349 348 347 346 345 344 343 342 341 340 339 338 337 336 335 334 333 332 331 330 329 328 327 326 325 324 323 322 321 320 319 318 317 316 315 314 313 312 311 310 309 308 307 306 305 304 303 302 301 300 299 298 297 296 295 294 293 292 291 290 289 288 287 286 285 284 283 282 281 280 279 278 277 276 275 274 273 272 271 270 269 268 267 266!
265 264 263 262 261 260 259 258 2
57 256 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 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 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:474
474 printf("Dump already in progress, bailing...\n");
(kgdb) where
#0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:474
#1 0xc016c3b0 in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:313
#2 0xc016c79c in poweroff_wait (junk=0xc0267900, howto=-1070893428)
at /usr/src/sys/kern/kern_shutdown.c:582
#3 0xc0166e0f in lockmgr (lkp=0xc02b76bc, flags=2, interlkp=0x0, p=0xda378920)
at /usr/src/sys/kern/kern_lock.c:337
#4 0xc02115a8 in vm_map_remove (map=0xc02b768c, start=3751591936,
end=3755786240) at /usr/src/sys/vm/vm_map.c:1949
#5 0xc020f376 in kmem_free (map=0xc02b768c, addr=3751591936, size=4194304)
at /usr/src/sys/vm/vm_kern.c:233
#6 0xc0324e7a in ?? ()
#7 0xc032524d in ?? ()
#8 0xc023dd9a in set_mode (scp=0xc02bf980)
at /usr/src/sys/dev/syscons/syscons.c:3285
#9 0xc023c152 in restore_scrn_saver_mode (scp=0xc02bf980, changemode=1)
at /usr/src/sys/dev/syscons/syscons.c:1989
#10 0xc023bf5d in scsplash_saver (sc=0xc02c4f00, show=0)
at /usr/src/sys/dev/syscons/syscons.c:1876
#11 0xc023c1bb in stop_scrn_saver (sc=0xc02c4f00,
saver=0xc023bea0 <scsplash_saver>)
at /usr/src/sys/dev/syscons/syscons.c:2007
#12 0xc023b9ee in scrn_timer (arg=0xc02c4f00)
at /usr/src/sys/dev/syscons/syscons.c:1648
#13 0xc017223d in softclock () at /usr/src/sys/kern/kern_timeout.c:131
#14 0xc0242860 in splz_swi ()
#15 0xc0249df7 in pmap_remove_pte (pmap=0xc02c4a60, ptq=0xbff7f8ec,
va=3756240896) at /usr/src/sys/i386/i386/pmap.c:1678
#16 0xc0249f3e in pmap_remove (pmap=0xc02c4a60, sva=3756240896, eva=3756257280)
at /usr/src/sys/i386/i386/pmap.c:1802
---Type <return> to continue, or q <return> to quit---
#17 0xc02114d8 in vm_map_delete (map=0xc02b768c, start=3756240896,
end=3756257280) at /usr/src/sys/vm/vm_map.c:1903
#18 0xc02115cd in vm_map_remove (map=0xc02b768c, start=3756240896,
end=3756257280) at /usr/src/sys/vm/vm_map.c:1951
#19 0xc020f376 in kmem_free (map=0xc02b768c, addr=3756240896, size=16384)
at /usr/src/sys/vm/vm_kern.c:233
#20 0xc017d51d in pipe_free_kmem (cpipe=0xdf198620)
at /usr/src/sys/kern/sys_pipe.c:1165
#21 0xc017d69b in pipeclose (cpipe=0xdf198620)
at /usr/src/sys/kern/sys_pipe.c:1221
#22 0xc017d4de in pipe_close (fp=0xc5588cc0, p=0xda378920)
at /usr/src/sys/kern/sys_pipe.c:1152
#23 0xc0162b9c in fdrop (fp=0xc5588cc0, p=0xda378920)
at /usr/src/sys/sys/file.h:217
#24 0xc0162ae3 in closef (fp=0xc5588cc0, p=0xda378920)
at /usr/src/sys/kern/kern_descrip.c:1220
#25 0xc0162021 in close (p=0xda378920, uap=0xda380f80)
at /usr/src/sys/kern/kern_descrip.c:581
#26 0xc024ce62 in syscall2 (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
tf_edi = 0, tf_esi = 672995984, tf_ebp = -1077937928,
tf_isp = -633860140, tf_ebx = 672922148, tf_edx = 0, tf_ecx = 672995984,
tf_eax = 6, tf_trapno = 7, tf_err = 2, tf_eip = 672876044, tf_cs = 31,
tf_eflags = 647, tf_esp = -1077937972, tf_ss = 47})
at /usr/src/sys/i386/i386/trap.c:1157
#27 0xc02413a5 in Xint0x80_syscall ()
#28 0x281a2328 in ?? ()
#29 0x28084b47 in ?? ()
#30 0x28084936 in ?? ()
#31 0x280bd2a0 in ?? ()
---Type <return> to continue, or q <return> to quit---
#32 0x280bcd34 in ?? ()
#33 0x28081965 in ?? ()
#34 0x2807fe71 in ?? ()
#35 0x2807ffa5 in ?? ()
#36 0x2807fdd5 in ?? ()
#37 0x28092e93 in ?? ()
#38 0x28094bb8 in ?? ()
#39 0x2809485f in ?? ()
#40 0x280955fa in ?? ()
#41 0x80484ea in ?? ()
#42 0x8048445 in ?? ()
(kgdb) up
#1 0xc016c3b0 in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:313
313 dumpsys();
(kgdb) up
#2 0xc016c79c in poweroff_wait (junk=0xc0267900, howto=-1070893428)
at /usr/src/sys/kern/kern_shutdown.c:582
582 }
(kgdb) up
#3 0xc0166e0f in lockmgr (lkp=0xc02b76bc, flags=2, interlkp=0x0, p=0xda378920)
at /usr/src/sys/kern/kern_lock.c:337
337 if ((extflags & LK_CANRECURSE) != 0) {
(kgdb) list
332 /*
333 * Recursive lock.
334 */
335 if ((extflags & (LK_NOWAIT | LK_CANRECURSE)) == 0)
336 panic("lockmgr: locking against myself");
337 if ((extflags & LK_CANRECURSE) != 0) {
338 lkp->lk_exclusivecount++;
339 COUNT(p, 1);
340 break;
341 }
(kgdb) up
#4 0xc02115a8 in vm_map_remove (map=0xc02b768c, start=3751591936,
end=3755786240) at /usr/src/sys/vm/vm_map.c:1949
1949
(kgdb) list up
#5 0xc020f376 in kmem_free (map=0xc02b768c, addr=3751591936, size=4194304)
at /usr/src/sys/vm/vm_kern.c:233
233 (void) vm_map_remove(map, trunc_page(addr), round_page(addr + size));
(kgdb) up
#6 0xc0324e7a in ?? ()
(kgdb) up
#7 0xc032524d in ?? ()
(kgdb) up
#8 0xc023dd9a in set_mode (scp=0xc02bf980)
at /usr/src/sys/dev/syscons/syscons.c:3285
3285 sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
(kgdb) quit
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