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    No Buffer Space Available -> Loose wan connection?

    Scheduled Pinned Locked Moved General pfSense Questions
    21 Posts 4 Posters 24.8k Views
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    • J
      Justinw
      last edited by

      Also remember to look at UPNP, if it is on, try testing some torrents with it turned off and see if your results differ at all.

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      • G
        GoldServe
        last edited by

        It looks this this happens with HEAVY traffic (100% cpu) and with MINIUPNP running. I tried the fix in the SVN today (http://cvstrac.pfsense.com/chngview?cn=19407) and it still does not help. Something to do with buffers, memory…

        HRM!

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        • J
          Justinw
          last edited by

          What are your machine stats?  CPU, RAM, etc…

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          • G
            GoldServe
            last edited by

            It is just a WRAP 1E with 128mb of ram and Soekris net 4801 with 12mb of ram. Same config, two different machines and same problem.

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            • S
              sullrich
              last edited by

              Edit /boot/loader.conf

              Add to the file:

              kern.ipc.nmbclusters="0"

              Then save the changes and reboot the firewall.

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              • G
                GoldServe
                last edited by

                I did put this into the /boot/loader.conf already and it still doesn't work. Once mini-upnp complain about no buffer space, the firewall is dead. I have miniupnp listening on WLAN and not LAN. Any clues?

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                • G
                  GoldServe
                  last edited by

                  ARGG..this is very annoying. I already stopped mini-upnpd but under heavy traffic, connection cuts out but i'm still connected via wireless. It seems like a memory allocation problem and nmbufs in the loader.conf is not helping! I don't care if this thing net4801 is slower than my linksys wrt54g router but the linksys is VERY stable and pfsense + net4801 is one unstable setup. Any clues on how I can debug this so we can trace down the problem?? Thanks!

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                  • S
                    sullrich
                    last edited by

                    Your bios is the latest and greatest on the WRAP?

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                    • G
                      GoldServe
                      last edited by

                      On two different boards, althought similar hardware, it acts up on the NET4801 and WRAP. Both are being used as firewall/routers/ap so wan from ethernet and Atheros abg card in the mini-pci slot. Hope someone can come up with more memory tuning parameters.

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                      • G
                        GoldServe
                        last edited by

                        Arg, i'm getting this error again on my via 1ghz eden box still. It's got 512mb of ram and cpu utilization when using dual wan and downloading at 1MB/sec is only 25-40% usage.

                        Dec 2 21:51:46 miniupnpd[4936]: sendto(udp_notify): No buffer space available

                        I swear there is a bug but no one seems to be seeing it. I checked and the kernel no mnbclusters is in the loader.conf so that isn't the problem.

                        PLEASE help!

                        Thanks!

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                        • S
                          sullrich
                          last edited by

                          Check /boot/loader.conf

                          It should contain:

                          kern.ipc.nmbclusters="0"

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                          • G
                            GoldServe
                            last edited by

                            I do have that and miniupnpd is still crapping out. Makes me think if it is the daemon itself.

                            Here is my loader.conf:

                            via:/boot#  more loader.conf
                            hw.ata.atapi_dma="0"
                            hw.ata.ata_dma="0"
                            loader_color="NO"
                            autoboot_delay="5"
                            hw.ata.wc="0"
                            kern.ipc.nmbclusters="0"
                            beastie_disable="YES"

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                            • S
                              sullrich
                              last edited by

                              @GoldServe:

                              I do have that and miniupnpd is still crapping out. Makes me think if it is the daemon itself.

                              Sounds like it.  I would bet an application on the network is interacting with it and somehow is triggering a bug that happens to be making FreeBSD run out of resources.

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                              • R
                                rsw686
                                last edited by

                                It would be helpful if you could track down the application that causes that error. One way might be a tcpdump leading up to and at the time the error. Although I looked at the miniupnpd code and its just sending out a broadcast of miniupnpd's known services. This could be an issue relating to network issues and not the box or miniupnpd. I came across a thread while searching google

                                http://unix.derkeiler.com/Mailing-Lists/FreeBSD/isp/2003-07/0172.html

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                                • R
                                  rsw686
                                  last edited by

                                  I got an email back from Thomas the miniupnpd author stating

                                  The error indicate that the send buffer for the network interface is
                                  full. It can only happen when the network interface itself is down or
                                  having problems sending packets.

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                                  • G
                                    GoldServe
                                    last edited by

                                    Why am I the only person seeing this issue on my pfsense box with heavy torrent traffic? Now i get wireless disconnects after buffer space unavailable…

                                    Jan 7 23:34:15 hostapd: ath0: STA 00:0e:8e:15:95:0f IEEE 802.11: associated
                                    Jan 7 23:34:12 hostapd: ath0: STA 00:0e:8e:15:95:0f IEEE 802.11: deassociated
                                    Jan 7 23:34:12 hostapd: ath0: STA 00:0e:8e:15:95:0f IEEE 802.11: deauthenticated due to local deauth request
                                    Jan 7 23:33:09 last message repeated 2 times
                                    Jan 7 23:31:09 last message repeated 2 times
                                    Jan 7 23:29:09 hostapd: ath0: STA 00:0e:8e:15:95:0f WPA: group key handshake completed (RSN)
                                    Jan 7 23:28:09 hostapd: ath0: STA 00:0e:8e:15:95:0f WPA: group key handshake completed (RSN)
                                    Jan 7 23:27:15 hostapd: ath0: STA 00:0e:8e:15:95:0f WPA: pairwise key handshake completed (RSN)
                                    Jan 7 23:27:15 hostapd: ath0: STA 00:0e:8e:15:95:0f IEEE 802.11: associated
                                    Jan 7 23:27:12 hostapd: ath0: STA 00:0e:8e:15:95:0f IEEE 802.11: deassociated
                                    Jan 7 23:27:12 hostapd: ath0: STA 00:0e:8e:15:95:0f IEEE 802.11: deauthenticated due to local deauth request
                                    Jan 7 23:26:09 hostapd: ath0: STA 00:0e:8e:15:95:0f WPA: group key handshake completed (RSN)
                                    Jan 7 23:26:33 miniupnpd[67069]: sendto(udp_notify): No buffer space available

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