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    Fatal Trap 12 every few days…

    Scheduled Pinned Locked Moved General pfSense Questions
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    • G
      GoldServe
      last edited by

      I can see in a few days if this happens but it all started after i upgraded to an august build and it seems to happen every few days. If i can get the BT and it looks the same, i don't think it is the ram so much. Thanks for looking though…

      1 Reply Last reply Reply Quote 0
      • 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?

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                    • 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.

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                        • E
                          eskild
                          last edited by

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

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                          • 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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