Alix 2c3 fatal trap

  • I sucessfuly installed latest embeded image to CF card and booted the board. Everything ok. A soon as I plug in LAN cable on vr1, reboot is triggered.

    Here is what I get:

    *** Welcome to pfSense 1.3-ALPHA-ALPHA-embedded on pfSense ***

    WAN*                    ->  vr0    ->
      LAN                      ->  vr1    ->
      OPT1(OPT1)              ->  vr2    ->      NONE
      OPT2(OPT2)              ->  ath0    ->      NONE

    pfSense console setup

    0)  Logout (SSH only)
    1)  Assign Interfaces
    2)  Set interface(s) IP address
    3)  Reset webConfigurator password
    4)  Reset to factory defaults
    5)  Reboot system
    6)  Halt system
    7)  Ping host
    8)  Shell
    9)  PFtop
    10)  Filter Logs
    11)  Restart webConfigurator
    12)  pfSense PHP shell
    13)  Upgrade from console
    14)  Enable/Disable SSHD

    Enter an option:

    Fatal trap 12: page fault while in kernel mode
    fault virtual address  = 0x10004
    fault code              = supervisor write, page not present
    instruction pointer    = 0x20:0xc0949ef7
    stack pointer          = 0x28:0xcd069a9c
    frame pointer          = 0x28:0xcd069acc
    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        = 34768 (sh)
    trap number            = 12
    panic: page fault
    Uptime: 3m57s
    Cannot dump. No dump device defined.
    Automatic reboot in 15 seconds - press a key on the console to abort
    –> Press a key on the console to reboot,
    --> or switch off the system now.
    PC Engines ALIX.2 v0.99
    640 KB Base Memory
    261120 KB Extended Memory

  • Today I did some more tests and found out that reboots are constant, and not only in case if I attach the LAN cable. Did someone experience the same problems with alix 2C3? Max uptime is around 5 min and then reboot. I have some problems with this board also with 1.2 version and I'm suspecting also fault hardware.

    Can someone confirm that is running 1.3 alpha successful on alix 2C3.

    Thank you,


  • The vr(4) driver was back ported from FreeBSD RELENG_7, guessing that's related to this. We'll check into it.

  • thanks for looking into this. Let me know if you need aditional info/symptoms.

  • Try disabling acpi and report back if it makes any difference.

    I do not know if the ALix2c3 has any MSI features in it but if you can check there might be even a msi disabling test that would be interesting.


  • I'm running the 1.3AA on a 2c3 and it has not rebooted unexpectedly. I have LAN on vr0 and WAN on vr1.
    Connected a laptop to LAN and plugged WAN into my network (dhcp) and browsed the Internet, downloaded files through the box. I then switched the LAN to my private network to play with the AD auth in the usermanager leaving it running all day- no stability issues so far.

  • Disabled ACPI at boot, but no luck, it still reboots. dotdash what kind of CF card are you using?, I will try with different CF card, is pfsense sensitive with different cards? I'm currently using Sandisk extreme II 2Gb card.

  • Use a debugging enabled kernel and post the output of the "bt" command on the debugger prompt.

  • Hi ermal,

    Is there by any chance embeded image with debugging kernel available? I'm not really an expert with this stuff. I found some info here:

    tnx for your help.


  • Check under /kernels there usually you will find different kernels. Not sure if embedded has those too.

  • @dimi3:

    dotdash what kind of CF card are you using?, I will try with different CF card, is pfsense sensitive with different cards? I'm currently using Sandisk extreme II 2Gb card.

    My test box has a 1 GB Kingston. I've got 1.2 production boxes with A-Data, Lexar, Kingston cards. I've never had a problem writing an image to a card.

  • I think he has a hardware problems but better check ;)

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