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    Fatal Trap 12 every few days…

    Scheduled Pinned Locked Moved General pfSense Questions
    20 Posts 6 Posters 8.3k Views
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    • G
      GoldServe
      last edited by

      Nope, i don't think this is ram related. Same error just happened.

      Fatal trap 12: page fault while in kernel mode
      cpuid = 0; apic id = 00
      fault virtual address   = 0xc050048
      fault code              = supervisor read, page not present
      instruction pointer     = 0x20:0xc0b0c4d1
      stack pointer           = 0x28:0xeb0ba7d8
      frame pointer           = 0x28:0xeb0ba7fc
      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         = 12 (irq259: em1:rx 0)
      [thread]
      Stopped at      rn_match+0x11:  movl    0xc(%eax),%ebx
      db> bt
      Tracing pid 12 tid 64034 td 0xc4afe280
      rn_match(c130852c,c5ada300,c5c3f710,c55f381e,eb0ba8b4,...) at rn_match+0x11
      pfr_match_addr(c5be4000,c55f381a,2,e072,eb0ba89c,...) at pfr_match_addr+0xe0
      pf_test_udp(eb0ba978,eb0ba974,1,c4c59500,c5829500,...) at pf_test_udp+0x8aa
      pf_test(1,c4b36c00,eb0bab44,0,0,...) at pf_test+0x242f
      pf_check_in(0,eb0bab44,c4b36c00,1,0,...) at pf_check_in+0x46
      pfil_run_hooks(c1353e60,eb0bab94,c4b36c00,1,0,...) at pfil_run_hooks+0x93
      ip_input(c5829500,10,c203000,0,0,...) at ip_input+0x359
      netisr_dispatch_src(1,0,c5829500,eb0bac00,c0af9e4f,...) at netisr_dispatch_src+0x70
      netisr_dispatch(1,c5829500,c4b35000,c4b36c00) at netisr_dispatch+0x20
      ether_demux(c4b36c00,c5829500,3,0,3,...) at ether_demux+0x19f
      ether_input(c4b36c00,c5829500,eb0bac58,c4afe280,eb0bac4c,...) at ether_input+0x15d
      em_rxeof(0,b7ad47a,c4b57340,c4b50080,eb0bacc0,...) at em_rxeof+0x184
      em_msix_rx(c4b35000,0,109,8c57ea70,117a2,...) at em_msix_rx+0x23
      intr_event_execute_handlers(c498f7f8,c4b50080,c0ee391c,52d,c4b500f0,...) at intr_event_execute_handlers+0xde
      ithread_loop(c4b4ca40,eb0bad38,0,0,0,...) at ithread_loop+0x66
      fork_exit(c0a11ad0,c4b4ca40,eb0bad38) at fork_exit+0x88
      fork_trampoline() at fork_trampoline+0x8
      --- trap 0, eip = 0, esp = 0xeb0bad70, ebp = 0 ---
      [/thread]
      
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      • E
        eri--
        last edited by

        Can you check on the system log what events appear when this happens?

        1 Reply Last reply Reply Quote 0
        • G
          GoldServe
          last edited by

          Sorry, how am I able to view the system log file from the db> prompt?

          1 Reply Last reply Reply Quote 0
          • E
            eri--
            last edited by

            After you reboot the machine!

            1 Reply Last reply Reply Quote 0
            • G
              GoldServe
              last edited by

              Hrm, doesn't the system log files get overwritten on every boot?

              1 Reply Last reply Reply Quote 0
              • E
                eskild
                last edited by

                My fw had a similar crash today! psSense 2.0.

                I have never experienced this before. If there anyway I can collect information from pfSense after a reboot that makes troubleshooting easier? Logs, coredumps?

                I have used pfSense since Rel1 was in alpha stage, and this is the first time I had to physically reset the fw due to instabillity.

                Please see the attached image.

                pfSenseCrash-05dec2011.jpg
                pfSenseCrash-05dec2011.jpg_thumb

                1 Reply Last reply Reply Quote 0
                • G
                  GoldServe
                  last edited by

                  Can you type "bt" at the prompt?

                  1 Reply Last reply Reply Quote 0
                  • E
                    eskild
                    last edited by

                    bt: Command not found.

                    I have restarted the fw though as no traffic was possible after the crash.

                    1 Reply Last reply Reply Quote 0
                    • G
                      GoldServe
                      last edited by

                      you must have an embedded platform where the kernel does not allow "back trace"

                      I believe there is a way to change the kernel on the embedded platform. Someone more knowledgeable can chime in.

                      1 Reply Last reply Reply Quote 0
                      • E
                        eskild
                        last edited by

                        I do not have embedded plattform. I have a default x86 install: pfSense 2.0-RELEASE-pfSense (i386)

                        1 Reply Last reply Reply Quote 0
                        • stephenw10S
                          stephenw10 Netgate Administrator
                          last edited by

                          You can only run a back trace at the db> prompt, after a crash, not if:

                          @eskild:

                          I have restarted the fw though as no traffic was possible after the crash.

                          Steve

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                          • E
                            eskild
                            last edited by

                            Thanks, I suspected that.
                            It might be good to evaluate features that captures system information that can be used for troubleshooting by the dev team later.
                            I was surprised that after the boot, there were no traces from the crash at all, and impossible to provide any hard evidence of what have happened.
                            I doubt that there are many firewalls that can be offline for a long time while consulting support. Most of us need to reboot and have the system back in service right away.

                            Just my two cents.

                            Back to the problem at hand. Is it possible that the crash can be caused by memory issue (RAM)? I have seen instabillities on other systems being caused by failing RAM.

                            Thanks

                            1 Reply Last reply Reply Quote 0
                            • jimpJ
                              jimp Rebel Alliance Developer Netgate
                              last edited by

                              We fixed the fact that some crashes do not automatically restart in 2.0.1/2.1, but it's an easy fix:

                              Edit /etc/ddb.conf and change

                              script kdb.enter.panic=textdump set; capture on; run lockinfo; show pcpu; bt; ps; alltrace; capture off; call doadump; reset
                              

                              to

                              script kdb.enter.default=textdump set; capture on; run lockinfo; show pcpu; bt; ps; alltrace; capture off; call doadump; reset
                              

                              (So just change kdb.enter.panic to kdb.enter.default)

                              Then run:

                              /sbin/ddb /etc/ddb.conf
                              

                              From that point on it should collect the debug data and reboot itself automatically, and also give you a crash report notice in the GUI that you can use to upload the data to our servers (or grab it from /var/crash yourself)

                              From that panic it could be faulty hardware, but it's hard to say for sure. Usually if it's bad RAM the crashes would be in a different place every time, not in the exact same path. Though it could be a faulty NIC.

                              Remember: Upvote with the 👍 button for any user/post you find to be helpful, informative, or deserving of recognition!

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                              Do not Chat/PM for help!

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                              • A
                                atul
                                last edited by

                                Hello,

                                I am also getting the same error every few days, or sometimes more than once a day. I have recently upgraded from 1.2.3 to 2.0.1. But, the pfSense was crashing and restarting before the upgrade, so it is not "only" associated with 2.0.1 release.

                                I am attaching the entire crash log (long) that I was able to see on the GUI. I have sent it to pfSense team for further analysis.

                                Atul.

                                [Crash Report.txt](/public/imported_attachments/1/Crash Report.txt)

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                                • jimpJ
                                  jimp Rebel Alliance Developer Netgate
                                  last edited by

                                  @atul:

                                  Hello,

                                  I am also getting the same error every few days, or sometimes more than once a day. I have recently upgraded from 1.2.3 to 2.0.1. But, the pfSense was crashing and restarting before the upgrade, so it is not "only" associated with 2.0.1 release.

                                  I am attaching the entire crash log (long) that I was able to see on the GUI. I have sent it to pfSense team for further analysis.

                                  Atul.

                                  That crash is in code writing to the filesystem. There is very little likelihood there is a problem in that code, it's been solid for years on FreeBSD.

                                  More likely your HDD or storage media has issues, or it could be cabling/controller/DMA issues, but it's definitely storage.

                                  Remember: Upvote with the 👍 button for any user/post you find to be helpful, informative, or deserving of recognition!

                                  Need help fast? Netgate Global Support!

                                  Do not Chat/PM for help!

                                  1 Reply Last reply Reply Quote 0
                                  • A
                                    atul
                                    last edited by

                                    Thanks jimp. I will change the hard disk and check again.

                                    Out of curiosity - how did you know that this is storage related?

                                    Atul.

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