Fatal trap 12: page fault while in kernel mode

From: Jeremy Gaddis (jeremy_at_gaddis.org)
Date: 07/22/03

  • Next message: frank brierley: "Printing problems" 
    To: freebsd-questions@freebsd.org
Date: 21 Jul 2003 19:13:39 -0500

    One of my machines spontaneously rebooted today, during a run
    of `portsdb -Uu` after a cvsup of the ports collection. It's
    also done it a few times before, but I wasn't around and wasn't
    able to catch anything that it spit it before it rebooted. I
    was able to reproduce it, and here's what was output before the
    reboot:

    Fatal trap 12: page fault while in kernel mode
    fault virtual address = 0xc0f95240
    fault code = supervisor read, page not present
    instruction pointer = 0x8:0xc018306c
    stack pointer = 0x10:0xc40aaba4
    frame pointer = 0x10:0xc40aabc4
    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 = 2550 (sh)
    interrupt mask = none
    trap number = 12
    panic: page fault

    [jeremy@PLUTO:ttyp0:~]$ uname -a
    FreeBSD pluto.main.gaddis.org 4.8-STABLE FreeBSD 4.8-STABLE #0: Sun Jun
    1 01:12:47 EST 2003
    root@jupiter.main.gaddis.org:/usr/obj/usr/src/sys/PLUTO i386

    [jeremy@PLUTO:ttyp0:~]$ dmesg
    Copyright (c) 1992-2003 The FreeBSD Project.
    Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
            The Regents of the University of California. All rights
    reserved.
    FreeBSD 4.8-STABLE #0: Sun Jun 1 01:12:47 EST 2003
        root@jupiter.main.gaddis.org:/usr/obj/usr/src/sys/PLUTO
    Timecounter "i8254" frequency 1193182 Hz
    Timecounter "TSC" frequency 199310034 Hz
    CPU: Pentium/P54C (199.31-MHz 586-class CPU)
      Origin = "GenuineIntel" Id = 0x52c Stepping = 12
      Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
    real memory = 33554432 (32768K bytes)
    config> di ppc0
    No such device: ppc0
    Invalid command or syntax. Type `?' for help.
    config> di bt0
    No such device: bt0
    Invalid command or syntax. Type `?' for help.
    config> di aic0
    No such device: aic0
    Invalid command or syntax. Type `?' for help.
    config> di aha0
    No such device: aha0
    Invalid command or syntax. Type `?' for help.
    config> di adv0
    No such device: adv0
    Invalid command or syntax. Type `?' for help.
    config> en ed0
    No such device: ed0
    Invalid command or syntax. Type `?' for help.
    config> po ed0 0x300
    No such device: ed0
    Invalid command or syntax. Type `?' for help.
    config> ir ed0 10
    No such device: ed0
    Invalid command or syntax. Type `?' for help.
    config> iom ed0 0xd8000
    No such device: ed0
    Invalid command or syntax. Type `?' for help.
    config> f ed0 0
    No such device: ed0
    Invalid command or syntax. Type `?' for help.
    config> q
    avail memory = 29859840 (29160K bytes)
    Preloaded elf kernel "kernel" at 0xc02ea000.
    Preloaded userconfig_script "/boot/kernel.conf" at 0xc02ea09c.
    Intel Pentium detected, installing workaround for F00F bug
    md0: Malloc disk
    npx0: <math processor> on motherboard
    npx0: INT 16 interface
    pcib0: <Host to PCI bridge> on motherboard
    pci0: <PCI bus> on pcib0
    isab0: <Intel 82371SB PCI to ISA bridge> at device 7.0 on pci0
    isa0: <ISA bus> on isab0
    atapci0: <Intel PIIX3 ATA controller> port 0xf000-0xf00f at device 7.1
    on pci0
    ata0: at 0x1f0 irq 14 on atapci0
    ata1: at 0x170 irq 15 on atapci0
    pci0: <SiS 6326 SVGA controller> at 19.0
    rl0: <Accton MPX 5030/5038 10/100BaseTX> port 0x6100-0x61ff mem
    0xe0810000-0xe08100ff irq 11 at device 20.0 on pci0
    rl0: Ethernet address: 00:e0:29:96:62:f9
    miibus0: <MII bus> on rl0
    rlphy0: <RealTek internal media interface> on miibus0
    rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
    orm0: <Option ROM> at iomem 0xc0000-0xc7fff on isa0
    fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on
    isa0
    fdc0: FIFO enabled, 8 bytes threshold
    fd0: <1440-KB 3.5" drive> on fdc0 drive 0
    atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
    atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
    kbd0 at atkbd0
    vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on
    isa0
    sc0: <System console> at flags 0x100 on isa0
    sc0: VGA <16 virtual consoles, flags=0x300>
    sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
    sio0: type 16550A
    sio1 at port 0x2f8-0x2ff irq 3 on isa0
    sio1: type 16550A
    ad0: 19541MB <Maxtor 5T020H2> [39704/16/63] at ata0-master WDMA2
    acd0: CDROM <BCD-44XH CD-ROM> at ata1-master PIO4
    Mounting root from ufs:/dev/ad0s1a
    WARNING: / was not properly dismounted
    [jeremy@PLUTO:ttyp0:~]$

    The box in question is a P200 w/ 32 MB of RAM and 20 GB HDD,
    running 4.8-STABLE.

    I'd appreciate any comments or suggestions as to what I might
    do to track down the source of this problem.

    Thanks,
    j. 

    -- 
Jeremy L. Gaddis   <jeremy@gaddis.org>   <http://www.gaddis.org>
_______________________________________________
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"
  • Next message: frank brierley: "Printing problems"

    Relevant Pages