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Subject: [4.11] weekly panics - hints needed
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Hello,

we have problem with one of your 4.11 machine. About once a week it
has a kernel panic. I've tried many different kernel configs and a few
different -STABLE builds for different months. It always gets panic
one or two times each week, but in random time. This server is used
mainly as a web/database server. This problem occurs from time we have
run this server. Hardware seems to be good, we hadn't have any
hardware problems and server hangs.

Now it's:
# uname -a
FreeBSD server.foo 4.11-STABLE FreeBSD 4.11-STABLE #0: Sun Aug 14
23:11:31 CEST 2005     root@server.foo:/usr/src/sys/compile/XXX  i386

dmesg:

Aug 21 12:15:10 xxx /kernel: root@xxx.inten.pl:/usr/src/sys/compile/XXX
Aug 21 12:15:10 xxx /kernel: Timecounter "i8254"  frequency 1193182 Hz
Aug 21 12:15:10 xxx /kernel: CPU: Intel(R) Xeon(TM) CPU 3.06GHz (3065.81-MHz 686-class CPU)
Aug 21 12:15:10 xxx /kernel: Origin = "GenuineIntel"  Id = 0xf29  Stepping = 9
Aug 21 12:15:10 xxx /kernel: Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Aug 21 12:15:10 xxx /kernel: Hyperthreading: 2 logical CPUs
Aug 21 12:15:10 xxx /kernel: real memory  = 1073676288 (1048512K bytes)
Aug 21 12:15:10 xxx /kernel: avail memory = 1039650816 (1015284K bytes)
Aug 21 12:15:10 xxx /kernel: APIC_IO: MP table broken: ExtINT entry corrupt!
Aug 21 12:15:10 xxx /kernel: Programming 16 pins in IOAPIC #0
Aug 21 12:15:10 xxx /kernel: IOAPIC #0 intpin 2 -> irq 0
Aug 21 12:15:10 xxx /kernel: Programming 16 pins in IOAPIC #1
Aug 21 12:15:10 xxx /kernel: Programming 16 pins in IOAPIC #2
Aug 21 12:15:10 xxx /kernel: Programming 16 pins in IOAPIC #3
Aug 21 12:15:10 xxx /kernel: FreeBSD/SMP: Multiprocessor motherboard: 4 CPUs
Aug 21 12:15:11 xxx /kernel: cpu0 (BSP): apic id:  0, version: 0x00050014, at 0xfee00000
Aug 21 12:15:11 xxx /kernel: cpu1 (AP):  apic id:  1, version: 0x00050014, at 0xfee00000
Aug 21 12:15:11 xxx /kernel: cpu2 (AP):  apic id:  2, version: 0x00050014, at 0xfee00000
Aug 21 12:15:11 xxx /kernel: cpu3 (AP):  apic id:  3, version: 0x00050014, at 0xfee00000
Aug 21 12:15:11 xxx /kernel: io0 (APIC): apic id:  8, version: 0x000f0011, at 0xfec00000
Aug 21 12:15:11 xxx /kernel: io1 (APIC): apic id:  9, version: 0x000f0011, at 0xfec01000
Aug 21 12:15:11 xxx /kernel: io2 (APIC): apic id: 10, version: 0x000f0011, at 0xfec02000
Aug 21 12:15:11 xxx /kernel: io3 (APIC): apic id: 11, version: 0x000f0011, at 0xfec03000
Aug 21 12:15:11 xxx /kernel: Preloaded elf kernel "kernel" at 0xc053a000.
Aug 21 12:15:11 xxx /kernel: Warning: Pentium 4 CPU: PSE disabled
Aug 21 12:15:11 xxx /kernel: Pentium Pro MTRR support enabled
Aug 21 12:15:11 xxx /kernel: md0: Malloc disk
Aug 21 12:15:11 xxx /kernel: Using $PIR table, 18 entries at 0xc00f8270
Aug 21 12:15:11 xxx /kernel: npx0: <math processor> on motherboard
Aug 21 12:15:11 xxx /kernel: npx0: INT 16 interface
Aug 21 12:15:11 xxx /kernel: pcib0: <ServerWorks host to PCI bridge(unknown chipset)> on motherboard
Aug 21 12:15:11 xxx /kernel: IOAPIC #1 intpin 0 -> irq 2
Aug 21 12:15:11 xxx /kernel: IOAPIC #1 intpin 1 -> irq 5
Aug 21 12:15:11 xxx /kernel: pci0: <PCI bus> on pcib0
Aug 21 12:15:11 xxx /kernel: pci0: <ATI Mach64-GR graphics accelerator> at 4.0 irq 2
Aug 21 12:15:11 xxx /kernel: fxp0: <Intel 82550 Pro/100 Ethernet> port 0x9c00-0x9c3f mem 0xfe000000-0xfe01ffff,0xfe100000-0xfe100fff irq 5 at device 5.0 on pc
i0
Aug 21 12:15:11 xxx /kernel: fxp0: Ethernet address 00:0d:61:37:30:62
Aug 21 12:15:11 xxx /kernel: inphy0: <i82555 10/100 media interface> on miibus0
Aug 21 12:15:11 xxx /kernel: inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
Aug 21 12:15:11 xxx /kernel: isab0: <PCI to ISA bridge (vendor=1166 device=0203)> at device 15.0 on pci0
Aug 21 12:15:11 xxx /kernel: isa0: <ISA bus> on isab0
Aug 21 12:15:11 xxx /kernel: atapci0: <ServerWorks CSB6 ATA100 controller (channel 0+1)> port 0x9fd0-0x9fdf,0x374-0x377,0x170-0x177,0x3f4-0x3f7,0x1f0-0x1f7 at
 device 15.1 on pci0
Aug 21 12:15:11 xxx /kernel: ata0: at 0x1f0 irq 14 on atapci0
Aug 21 12:15:11 xxx /kernel: ata1: at 0x170 irq 15 on atapci0
Aug 21 12:15:11 xxx /kernel: pcib1: <ServerWorks host to PCI bridge(unknown chipset)> on motherboard
Aug 21 12:15:11 xxx /kernel: IOAPIC #1 intpin 13 -> irq 9
Aug 21 12:15:11 xxx /kernel: IOAPIC #1 intpin 14 -> irq 10
Aug 21 12:15:11 xxx /kernel: pci1: <PCI bus> on pcib1
Aug 21 12:15:11 xxx /kernel: ahd0: <Adaptec AIC7902 Ultra320 SCSI adapter> port 0xc800-0xc8ff,0xcc00-0xccff mem 0xfe800000-0xfe801fff irq 9 at device 3.0 on p
ci1
Aug 21 12:15:11 xxx /kernel: aic7902: Ultra320 Wide Channel A, SCSI Id=0, PCI 33 or 66Mhz, 512 SCBs
Aug 21 12:15:11 xxx /kernel: ahd1: <Adaptec AIC7902 Ultra320 SCSI adapter> port 0xc000-0xc0ff,0xc400-0xc4ff mem 0xfe600000-0xfe601fff irq 10 at device 3.1 on
pci1
Aug 21 12:15:11 xxx /kernel: aic7902: Ultra320 Wide Channel B, SCSI Id=0, PCI 33 or 66Mhz, 512 SCBs
Aug 21 12:15:11 xxx /kernel: pcib2: <Host to PCI bridge> on motherboard
Aug 21 12:15:11 xxx /kernel: IOAPIC #1 intpin 3 -> irq 11
Aug 21 12:15:11 xxx /kernel: pci2: <PCI bus> on pcib2
Aug 21 12:15:11 xxx /kernel: em0: <Intel(R) PRO/1000 Network Connection, Version - 2.1.7> port 0xdc00-0xdc3f mem 0xfeb00000-0xfeb1ffff irq 11 at device 2.0 on
 pci2
Aug 21 12:15:11 xxx /kernel: em0:  Speed:N/A  Duplex:N/A
Aug 21 12:15:11 xxx /kernel: pcib3: <ServerWorks host to PCI bridge(unknown chipset)> on motherboard
Aug 21 12:15:11 xxx /kernel: pci3: <PCI bus> on pcib3
Aug 21 12:15:11 xxx /kernel: pcib4: <ServerWorks host to PCI bridge(unknown chipset)> on motherboard
Aug 21 12:15:11 xxx /kernel: pci4: <PCI bus> on pcib4
Aug 21 12:15:11 xxx /kernel: orm0: <Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xd07ff on isa0
Aug 21 12:15:11 xxx /kernel: pmtimer0 on isa0
Aug 21 12:15:11 xxx /kernel: fdc0: ready for input in output
Aug 21 12:15:11 xxx /kernel: fdc0: cmd 3 failed at out byte 1 of 3
Aug 21 12:15:11 xxx /kernel: atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
Aug 21 12:15:11 xxx /kernel: vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Aug 21 12:15:11 xxx /kernel: sc0: <System console> at flags 0x100 on isa0
Aug 21 12:15:11 xxx /kernel: sc0: VGA <16 virtual consoles, flags=0x100>
Aug 21 12:15:11 xxx /kernel: sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
Aug 21 12:15:11 xxx /kernel: sio0: type 16550A, console
Aug 21 12:15:11 xxx /kernel: sio1 at port 0x2f8-0x2ff irq 3 on isa0
Aug 21 12:15:11 xxx /kernel: sio1: type 16550A
Aug 21 12:15:11 xxx /kernel: ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
Aug 21 12:15:11 xxx /kernel: ppc0: Generic chipset (ECP/PS2/NIBBLE) in COMPATIBLE mode
Aug 21 12:15:11 xxx /kernel: ppc0: FIFO with 16/16/8 bytes threshold
Aug 21 12:15:11 xxx /kernel: plip0: <PLIP network interface> on ppbus0
Aug 21 12:15:11 xxx /kernel: lpt0: <Printer> on ppbus0
Aug 21 12:15:11 xxx /kernel: lpt0: Interrupt-driven port
Aug 21 12:15:11 xxx /kernel: ppi0: <Parallel I/O> on ppbus0
Aug 21 12:15:11 xxx /kernel: APIC_IO: Testing 8254 interrupt delivery
Aug 21 12:15:11 xxx /kernel: APIC_IO: Broken MP table detected: 8254 is not connected to IOAPIC #0 intpin 2
Aug 21 12:15:11 xxx /kernel: APIC_IO: routing 8254 via 8259 and IOAPIC #0 intpin 0
Aug 21 12:15:11 xxx /kernel: Waiting 15 seconds for SCSI devices to settle
Aug 21 12:15:11 xxx /kernel: SMP: AP CPU #3 Launched!
Aug 21 12:15:11 xxx /kernel: SMP: AP CPU #2 Launched!
Aug 21 12:15:11 xxx /kernel: SMP: AP CPU #1 Launched!
Aug 21 12:15:11 xxx /kernel: Mounting root from ufs:/dev/da0s1a
Aug 21 12:15:11 xxx /kernel: da0 at ahd0 bus 0 target 1 lun 0
Aug 21 12:15:11 xxx /kernel: da0: <QUANTUM ATLAS10K3_73_SCA 020W> Fixed Direct Access SCSI-3 device
Aug 21 12:15:11 xxx /kernel: da0: 160.000MB/s transfers (80.000MHz, offset 127, 16bit), Tagged Queueing Enabled
Aug 21 12:15:11 xxx /kernel: da0: 70149MB (143666192 512 byte sectors: 255H 63S/T 8942C)
Aug 21 12:15:11 xxx /kernel: da1 at ahd0 bus 0 target 2 lun 0
Aug 21 12:15:11 xxx /kernel: da1: <QUANTUM ATLAS10K3_73_SCA 020W> Fixed Direct Access SCSI-3 device
Aug 21 12:15:11 xxx /kernel: da1: 160.000MB/s transfers (80.000MHz, offset 127, 16bit), Tagged Queueing Enabled
Aug 21 12:15:11 xxx /kernel: da1: 70149MB (143666192 512 byte sectors: 255H 63S/T 8942C)

No it has GENERIC smp kernel with these options added:
options         PMAP_SHPGPERPROC=501
options         QUOTA                   # enable disk quotas
But as I mentioned we have used many different kernel configs.

# gdb -k kernel.debug /var/crash/vmcore.0
SMP 4 cpus
IdlePTD at physical address 0x00559000
initial pcb at physical address 0x00489da0
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
mp_lock = 01000002; cpuid = 1; lapic.id = 01000000
fault virtual address   = 0x8037
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc0342204
stack pointer           = 0x10:0xe6d9dbdc
frame pointer           = 0x10:0xe6d9dbe8
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         = 40977 (httpd)
interrupt mask          = net bio cam  <- SMP: XXX
trap number             = 12
panic: page fault
mp_lock = 01000002; cpuid = 1; lapic.id = 01000000
boot() called on cpu#1

syncing disks... 115 6 6 6 6 6 6 6 25 26 26 26 26 26 26 26 26 26 26 26 26
giving up on 24 buffers
Uptime: 6d10h14m52s

dumping to dev #da/0x20001, offset 2097280
dump 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 9
91 990 989 988 987 986 985 984 983 982 981 980 979 978 977 976 975 974 973 972 971 970 969 968 967 966 965 964 963 962 961 960 959 958 957 956 955 954 953 952
 951 950 949 948 947 946 945 944 943 942 941 940 939 938 937 936 935 934 933 932 931 930 929 928 927 926 925 924 923 922 921 920 919 918 917 916 915 914 913 9
12 911 910 909 908 907 906 905 904 903 902 901 900 899 898 897 896 895 894 893 892 891 890 889 888 887 886 885 884 883 882 881 880 879 878 877 876 875 874 873
 872 871 870 869 868 867 866 865 864 863 862 861 860 859 858 857 856 855 854 853 852 851 850 849 848 847 846 845 844 843 842 841 840 839 838 837 836 835 834 8
33 832 831 830 829 828 827 826 825 824 823 822 821 820 819 818 817 816 815 814 813 812 811 810 809 808 807 806 805 804 803 802 801 800 799 798 797 796 795 794
 793 792 791 790 789 788 787 786 785 784 783 782 781 780 779 778 777 776 775 774 773 772 771 770 769 768 767 766 765 764 763 762 761 760 759 758 757 756 755 7
54 753 752 751 750 749 748 747 746 745 744 743 742 741 740 739 738 737 736 735 734 733 732 731 730 729 728 727 726 725 724 723 722 721 720 719 718 717 716 715
 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 6
75 674 673 672 671 670 669 668 667 666 665 664 663 662 661 660 659 658 657 656 655 654 653 652 651 650 649 648 647 646 645 644 643 642 641 640 639 638 637 636
 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 5
96 595 594 593 592 591 590 589 588 587 586 585 584 583 582 581 580 579 578 577 576 575 574 573 572 571 570 569 568 567 566 565 564 563 562 561 560 559 558 557
 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 5
17 516 515 514 513 512 511 510 509 508 507 506 505 504 503 502 501 500 499 498 497 496 495 494 493 492 491 490 489 488 487 486 485 484 483 482 481 480 479 478
 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 4
38 437 436 435 434 433 432 431 430 429 428 427 426 425 424 423 422 421 420 419 418 417 416 415 414 413 412 411 410 409 408 407 406 405 404 403 402 401 400 399
 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 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
 319 318 317 316 315 314 313 312 311 310 309 308 307 306 305 304 303 302 301 300 299 298 297 296 295 294 293 292 291 290 289 288 287 286 285 284 283 282 281 2
80 279 278 277 276 275 274 273 272 271 270 269 268 267 266 265 264 263 262 261 260 259 258 257 256 255 254 253 252 251 250 249 248 247 246 245 244 243 242 241
 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 2
01 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162
 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 1
22 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 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 \^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@
\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^
@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\
[... (there are may ^@ lines) ...]
@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@\^@
---
#0  dumpsys () at ../../kern/kern_shutdown.c:487
487             if (dumping++) {


(kgdb) where
#0  dumpsys () at ../../kern/kern_shutdown.c:487
#1  0xc024269c in boot (howto=256) at ../../kern/kern_shutdown.c:316
#2  0xc0242b04 in poweroff_wait (junk=0xc0422359, howto=-1069408753) at ../../kern/kern_shutdown.c:595
#3  0xc0398059 in trap_fatal (frame=0xe6d9db9c, eva=32823) at ../../i386/i386/trap.c:974
#4  0xc0397cd1 in trap_pfault (frame=0xe6d9db9c, usermode=0, eva=32823) at ../../i386/i386/trap.c:867
#5  0xc039785b in trap (frame={tf_fs = 24, tf_es = -421986288, tf_ds = -1070333936, tf_edi = 1744879616, tf_esi = 1, tf_ebp = -421930008,
      tf_isp = -421930040, tf_ebx = -431321596, tf_edx = 32768, tf_ecx = -430729024, tf_eax = 1744879616, tf_trapno = 12, tf_err = 0, tf_eip = -1070325244,
      tf_cs = 8, tf_eflags = 66054, tf_esp = -430729024, tf_ss = 0}) at ../../i386/i386/trap.c:466
#6  0xc0342204 in vm_object_terminate (object=0xe64a8e04) at ../../vm/vm_object.c:467
#7  0xc026f826 in vop_stddestroyvobject (ap=0xe6d9dc24) at ../../kern/vfs_default.c:587
#8  0xc026f3ed in vop_defaultop (ap=0xe6d9dc24) at ../../kern/vfs_default.c:152
#9  0xc03383c9 in ufs_vnoperate (ap=0xe6d9dc24) at ../../ufs/ufs/ufs_vnops.c:2376
#10 0xc0272d9b in vclean (vp=0xe65398c0, flags=8, p=0xe6ae2520) at vnode_if.h:1400
#11 0xc0273010 in vgonel (vp=0xe65398c0, p=0xe6ae2520) at ../../kern/vfs_subr.c:2058
#12 0xc02715f7 in getnewvnode (tag=VT_UFS, mp=0xc5029800, vops=0xc4e04200, vpp=0xe6d9dcdc) at ../../kern/vfs_subr.c:682
#13 0xc032faf7 in ffs_vget (mp=0xc5029800, ino=1950, vpp=0xe6d9dd48) at ../../ufs/ffs/ffs_vfsops.c:1111
#14 0xc03334a7 in ufs_lookup (ap=0xe6d9dda8) at ../../ufs/ufs/ufs_lookup.c:611
#15 0xc03383c9 in ufs_vnoperate (ap=0xe6d9dda8) at ../../ufs/ufs/ufs_vnops.c:2376
#16 0xc026d6b2 in vfs_cache_lookup (ap=0xe6d9de00) at vnode_if.h:77
#17 0xc03383c9 in ufs_vnoperate (ap=0xe6d9de00) at ../../ufs/ufs/ufs_vnops.c:2376
#18 0xc0270745 in lookup (ndp=0xe6d9de7c) at vnode_if.h:52
#19 0xc0270230 in namei (ndp=0xe6d9de7c) at ../../kern/vfs_lookup.c:153
#20 0xc0276625 in stat (p=0xe6ae2520, uap=0xe6d9df80) at ../../kern/vfs_syscalls.c:1794
#21 0xc039839d in syscall2 (frame={tf_fs = -1078001617, tf_es = -1078001617, tf_ds = -1078001617, tf_edi = 41, tf_esi = -1077946472, tf_ebp = -1077944064,
      tf_isp = -421929004, tf_ebx = -1077945344, tf_edx = 37, tf_ecx = 0, tf_eax = 188, tf_trapno = 7, tf_err = 2, tf_eip = 672226872, tf_cs = 31,
      tf_eflags = 663, tf_esp = -1077946556, tf_ss = 47}) at ../../i386/i386/trap.c:1175
#22 0xc038528b in Xint0x80_syscall ()
#23 0x285a5224 in ?? ()
#24 0x285a3430 in ?? ()
#25 0x285a45eb in ?? ()
#26 0x28646d86 in ?? ()
#27 0x28635ff8 in ?? ()
#28 0x2861266b in ?? ()
#29 0x2864c97a in ?? ()
#30 0x2864d31c in ?? ()
#31 0x2864d368 in ?? ()
#32 0x80568bd in ?? ()
#33 0x806cf78 in ?? ()
#34 0x806cfe2 in ?? ()
#35 0x8063667 in ?? ()
#36 0x8063910 in ?? ()
#37 0x8063c94 in ?? ()
#38 0x8064281 in ?? ()
#39 0x80648e0 in ?? ()
#40 0x804f7ce in ?? ()

(kgdb) up 6
#6  0xc0342204 in vm_object_terminate (object=0xe64a8e04) at ../../vm/vm_object.c:467
467             while ((p = TAILQ_FIRST(&object->memq)) != NULL) {
(kgdb) up 7
#13 0xc032faf7 in ffs_vget (mp=0xc5029800, ino=1950, vpp=0xe6d9dd48) at ../../ufs/ffs/ffs_vfsops.c:1111
1111            error = getnewvnode(VT_UFS, mp, ffs_vnodeop_p, &vp);
(kgdb) up 8
#21 0xc039839d in syscall2 (frame={tf_fs = -1078001617, tf_es = -1078001617, tf_ds = -1078001617, tf_edi = 41, tf_esi = -1077946472, tf_ebp = -1077944064,
      tf_isp = -421929004, tf_ebx = -1077945344, tf_edx = 37, tf_ecx = 0, tf_eax = 188, tf_trapno = 7, tf_err = 2, tf_eip = 672226872, tf_cs = 31,
      tf_eflags = 663, tf_esp = -1077946556, tf_ss = 47}) at ../../i386/i386/trap.c:1175
1175            error = (*callp->sy_call)(p, args);
(kgdb)


There is nothing in the panic time in kernel logs and Apache
error_logs (keeped on partition without sofupdates).

Current process (when panic) is very often httpd, but I belive it
don't cause the panic directly, we have many httpd processess all the
time. There was one panic, when it was mysqld and one when it was
pagedaemon, so I'm sure panic is FreeBSD releated. 

Thank you for any hints which can help me resolving this issue. I can
provide more crash dumps if needed.

Regards,
Peter S.