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    PfSense 2.3 LAN interface stops routing traffic - stops working after 2 or 3 day

    Scheduled Pinned Locked Moved General pfSense Questions
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    • C Offline
      cmb
      last edited by

      @j.koopmann:

      I am afraid this did not do the trick. It happened again yesterday evening. So I disabled Cores 1,2,3 with

      hint.lapic.1.disabled=1
      hint.lapic.2.disabled=1
      hint.lapic.3.disabled=1

      and rebooted. This morning: LAN was dead once again. I logged in on the serial console, did

      ifconfig igb2 down
      ifconfig igb2 up

      and 5-10 seconds later everything else was back online.

      That all looks correct. The only really solid confirmation I have that it fixes it is with em and re NICs. They're single-queue, where igb is multi-queue, so it's possible there's more to it in the igb case. igb's num_queues could be set to 1, but that has a pretty significant impact on achievable top end throughput.

      an ifconfig down and up of the interfaces with SMP doesn't do anything that I've seen, the fact the network comes back with that suggests it's "better" than before. Not that dead is any better than dead.

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      • J Offline
        j.koopmann
        last edited by

        Only that the ifconfig down/up stuff even worked before I disabled the cores… :-)

        I now have a cronjob that checks the LAN interface every minute and if it cannot ping internal systems restarts the interface and logs it to system.log. If you need me to run additional debugs: Go ahead please! :-)

        Regards,
          JP

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        • E Offline
          erdmensch
          last edited by

          Thank you for this workaround!

          Disabling the CPUs seems to solve my problems for the moment.

          On my Supermicro MBD-X7SPA-HF with Quad em pcie card, using multiple vlans and ipsec tunnels:

          • Traffic on vlan Interfaces dead after some time. From 15min up to a few hours at most.
          • Wan and pfsense still responding
          • Reboot solves the problem (multiple times a day)

          Same behaviour with a replacement asrock Q1900M and Quad em card.

          Other observations:

          Old alix 2d13 runs fine with the same vlan/ipsec setup (very slow, but ok as backup).

          2 boxes with a gigabyte j1900n-d3v also run fine without disabling the cores:

          • using the onboard re interfaces
          • they also have some ipsec tunnels
          • they do not have vlan interfaces
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          • C Offline
            covex
            last edited by

            @j.koopmann:

            Only that the ifconfig down/up stuff even worked before I disabled the cores… :-)

            I now have a cronjob that checks the LAN interface every minute and if it cannot ping internal systems restarts the interface and logs it to system.log. If you need me to run additional debugs: Go ahead please! :-)

            Regards,
              JP

            hey jp, could you share the script for that cron job?
            in my case alix apu box stays up, no problems with it. sg2440 locked up once and soekris 6501 locks every couple days.

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            • J Offline
              j.koopmann
              last edited by

              Sure..

              
              #!/usr/local/bin/perl
              
              use Net::Ping;
              use Sys::Syslog;
              
              $server_to_ping="192.168.1.1";
              $server_to_ping2="192.168.1.2";
              
              sub check_ping_server
              {
              $host_alive=1;
              $ping=Net::Ping->new('icmp');
              if( $ping->ping($_[0]) ) { $host_alive=1;}
               else  {$host_alive=0;}
              return $host_alive;
              }
              
              if(!check_ping_server($server_to_ping) && !check_ping_server($server_to_ping2))
                  {
                  system("ifconfig igb2 down");
                  system("sleep 2");
                  system("ifconfig igb2 up");
                  system("sleep 5");
                  openlog("checkigb2", "ndelay", LOG_USER);
                  syslog('notice', 'IP check failed, igb2 restarted');
                  closelog();
                  }
                  else
                  {
                    openlog("checkigb2", "ndelay", LOG_USER);
                    syslog('notice', 'IP check ok');
                    closelog();
                  }
              
              exit;
              
              

              Not the best piece of coding but it seems to do the trick.

              Regards,
                JP

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              • O Offline
                OLBaID
                last edited by

                Hi been tracking the bug (thanks CMB!):

                https://redmine.pfsense.org/issues/6296

                A comment on the bug tracker had this link:

                https://forum.pfsense.org/index.php?topic=107471.msg602590#msg602590

                This user disabled the following in System/ Advanced / Networking:

                I had all enabled:

                Disable hardware checksum offload
                Disable hardware TCP segmentation offload
                Disable hardware large receive offload

                Can anyone else here confirm if this helps if they are experiencing the issue (I am working to get this hardware back online soon to test myself)

                Not trying to muddy any waters, but hoping for a fast resolution.

                Thanks

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                • E Offline
                  erdmensch
                  last edited by

                  I had these options disabled even before the upgrade to 2.3.
                  Only disabling the CPU cores solves the issue for me.

                  1 Reply Last reply Reply Quote 0
                  • J Offline
                    jeffvfren
                    last edited by

                    I'm having the same issue. Disable CPU cores, still under monitoring.
                    Hopefully the fix release asap.

                    Update:
                    It does not work for me, the issue just happen again.

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                    • H Offline
                      h311m4n
                      last edited by

                      Add us to the list as well.

                      We have a virtual pfsense cluster on our DRC site with and ipsec tunnel to our prod site. Since the update, we've had constant crashes from the master on the DRC site.

                      It has been stable for the past 2-3 days now, but with a VCENTER session open, I see a constant CPU usage warning on the master on the other side. We have done the CPU workaround too but as soon as we launch our VEEAM replications, we can be pretty much sure that the ipsec tunnel will fall. Def looks like all the UDP traffic is basically doing a DOS…

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                      • C Offline
                        cmb
                        last edited by

                        We're still working on tracking this down. Have it narrowed down to something in our IPsec changes (which are just back-ports from FreeBSD -CURRENT), but that's still 80 change sets potentially related.

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                        • H Offline
                          h311m4n
                          last edited by

                          @cmb:

                          We're still working on tracking this down. Have it narrowed down to something in our IPsec changes (which are just back-ports from FreeBSD -CURRENT), but that's still 80 change sets potentially related.

                          Good to know you're working on it!  :)

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                          • M Offline
                            marcvb
                            last edited by

                            We also are having this problem with 2.3 , it happens each week.
                            We use multiple ipsec connections.
                            The pfsense is inside a vmware.
                            2Gb ram
                            4 cores

                            I think the state table size is also bigger: 82% (165500/201000)
                            When i want to open the state table it also crashes Allowed memory size of 268435456 bytes exhausted.
                            I will put more ram in the system when i have a downtime window.

                            –--
                            Yes i got my down window upgraded the ram to 4Gb, can now view the states without any problem.

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                            • J Offline
                              j.koopmann
                              last edited by

                              Happened again today twice but with different details.

                              1. LAN went down. For whatever reason my script doing ifconfig down and up did not help. I tried manually with no luck. Retried and introduced longer sleep between down and up and then it worked. This was the first crash in several days.

                              2. appr. 60 minutes later LAN was down again. However this time I did not even manage to get any result on the serial console. I had to power down/up. No core dump I was able to find however after login I saw a crash and uploaded it. not sure if it is related. I would say it happened around the time of (1).

                              
                              Fatal trap 12: page fault while in kernel mode
                              cpuid = 0; apic id = 00
                              fault virtual address	= 0x0
                              fault code		= supervisor read data, page not present
                              instruction pointer	= 0x20:0xffffffff80d22566
                              stack pointer	        = 0x28:0xfffffe001a38c590
                              frame pointer	        = 0x28:0xfffffe001a38c770
                              code segment		= base 0x0, limit 0xfffff, type 0x1b
                              			= DPL 0, pres 1, long 1, def32 0, gran 1
                              processor eflags	= interrupt enabled, resume, IOPL = 0
                              current process		= 12 (irq260: igb2:que 0)
                              version.txt06000025412713111367  7616 ustarrootwheelFreeBSD 10.3-RELEASE #31 01118b4(RELENG_2_3): Thu Apr 28 03:57:55 CDT 2016
                                  root@ce23-amd64-builder:/builder/pfsense/tmp/obj/builder/pfsense/tmp/FreeBSD-src/sys/pfSense
                              

                              Regards,
                                JP

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                              • J Offline
                                jswope
                                last edited by

                                I have 5 locations and we use the Dell R210 servers all sites except 2 have this issue. Only difference between them are Internet Service Providers.

                                Site 1 R210 Charter Fiber no issues

                                Site 2 AT&T LTE charter fiber bo issues

                                Site 3 Charter Fiber issues every 2-3 days watchdog error no lan routing

                                Site 4 charter coax internet issues every 3-days

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                                • M Offline
                                  marcvb
                                  last edited by

                                  A other firewall of us got stuck just now, when i looked at the console it was showing a different wan adres.
                                  It seems to have been reverted to a private, will take a screenshot next time.

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                                  • C Offline
                                    cmb
                                    last edited by

                                    We seem to have a fix for this. It's not yet merged into the source tree, but will be soon.

                                    @jswope:

                                    I have 5 locations and we use the Dell R210 servers all sites except 2 have this issue. Only difference between them are Internet Service Providers.

                                    It's not universal or even close to it or we wouldn't have released with the issue. Not ISP-specific. Just happens the traffic profile of some systems will encounter it. Certain UDP streams is what triggers it.

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                                    • A Offline
                                      afreaken
                                      last edited by

                                      @cmb:

                                      We seem to have a fix for this. It's not yet merged into the source tree, but will be soon.

                                      @jswope:

                                      I have 5 locations and we use the Dell R210 servers all sites except 2 have this issue. Only difference between them are Internet Service Providers.

                                      It's not universal or even close to it or we wouldn't have released with the issue. Not ISP-specific. Just happens the traffic profile of some systems will encounter it. Certain UDP streams is what triggers it.

                                      Do you have an ETA?

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                                      • C Offline
                                        cmb
                                        last edited by

                                        Sometime this week.

                                        1 Reply Last reply Reply Quote 0
                                        • E Offline
                                          eeit
                                          last edited by

                                          Hello,

                                          any news on this ? Is there a special setting or a patch to fix the issue available ?

                                          Thx.

                                          1 Reply Last reply Reply Quote 0
                                          • C Offline
                                            cmb
                                            last edited by

                                            Reducing the system to one core is the only workaround. The fix was merged into devel branch today and hopefully into RELENG_2_3 tomorrow, in which case it'll hit snapshots tomorrow.

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