- Bird-users - Mailing Lists

Re: Out of memory crash of 3000 routes in BGP
by Madhu 21 Oct '16

21 Oct '16

Looks like the problem is still there. I used 1.6.0 and also 1.6.2. On Mon, Oct 10, 2016 at 10:56 AM, james machado <hvgeekwtrvl(a)gmail.com> wrote: > Madhu check out the following thread. http://bird.network.cz/ > pipermail/bird-users/2016-September/010578.html > > > > On Mon, Oct 10, 2016 at 10:02 AM, Madhu <informmadhu(a)gmail.com> wrote: > >> Hi, >> >> I am seeing a out of memory crash with 3000 routes in BGP. Is this a >> known issue? I m seeing this issue in 1.6.0 and 1.6.2 . >> >> >> [ 1098.912753] Call Trace: >> [ 1098.915481] [<ffffffff81b96521>] dump_stack+0x64/0x82 >> [ 1098.921225] [<ffffffff81b91a46>] dump_header+0x7f/0x1f1 >> [ 1098.927163] [<ffffffff810b3e76>] ? put_online_cpus+0x56/0x80 >> [ 1098.933587] [<ffffffff811110ac>] ? rcu_oom_notify+0xcc/0xf0 >> [ 1098.939914] [<ffffffff811a2735>] oom_kill_process+0x205/0x360 >> [ 1098.946435] [<ffffffff814595b5>] ? security_capable_noaudit+0x15/0x20 >> [ 1098.953733] [<ffffffff811a2ee2>] out_of_memory+0x492/0x4d0 >> [ 1098.959962] [<ffffffff811a8f30>] __alloc_pages_nodemask+0xa00/0xb60 >> [ 1098.967067] [<ffffffff811eb1fa>] alloc_pages_vma+0x9a/0x160 >> [ 1098.973393] [<ffffffff811cd5c8>] handle_mm_fault+0xd38/0x1080 >> [ 1098.979914] [<ffffffff811d4b74>] ? change_protection+0x594/0x850 >> [ 1098.986726] [<ffffffff8109f5ae>] __do_page_fault+0x19e/0x560 >> [ 1098.993149] [<ffffffff811d4f81>] ? mprotect_fixup+0x151/0x290 >> [ 1098.999669] [<ffffffff8109f9a1>] do_page_fault+0x31/0x70 >> [ 1099.005704] [<ffffffff81ba40e8>] page_fault+0x28/0x30 >> >> Madhu >> > >

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bird 1.6.2 rpm
by Alex Dodson 18 Oct '16

18 Oct '16

Hello, We are using bird on RHEL7. When trying to update from the rpm we get the following errors. Failed to check for updates with the following error message: Failed to build transaction: bird-1.6.2-1.x86_64 requires libncurses.so.6()(64bit) bird-1.6.2-1.x86_64 requires libtinfo.so.6()(64bit) Is there a specific reason to build against the more modern non baseline version of ncurses for RHEL7 or am I fine to rebuild this and deploy it with it built against ncurses 5.9 which is included with RHEL7? Thanks for your assistance. Alex

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Bird upgrade kills all sessions for minutes.
by Alexander Morlang 14 Oct '16

14 Oct '16

Hi, We are using bird als a routing daemon in a meshed ethernet fabric. Bird runs on the connected hosts as well as on the network equipment to archive full layer 3 connectivity. When we upgrade the installed packages on the Hosts, the upgrade process stops bird, does upgrades and starts bird again. These behavior lead to a loss of connectivity for one up to several minutes, which make the upgrade process very disruptive. Usually, i would expect an upgrade and a restart of the daemon after the upgrade, which would keep the time in which the host is offline rather short. Following questions arise: * is this behavior intended, or is it a unintended side effect? * did you consider this type of setups, when you implemented the upgrade process this disruptive? * Can you consider to fix it, easing the upgrade process in this type of setups? In our careful evaluation, we think, using the -R parameter of dh_installinit could ease our suffering, resulting in following patch: diff -ruN bird-1.6.2.old/debian/rules bird-1.6.2/debian/rules --- bird-1.6.2.old/debian/rules 2016-09-29 20:49:00.000000000 +0200 +++ bird-1.6.2/debian/rules 2016-10-11 10:27:00.717429976 +0200 @@ -69,8 +69,8 @@ dh_strip -O--dbgsym-migration='bird-dbg (<< 1.6.0-2~), bird-bgp-dbg (<< 1.6.0-2~)' override_dh_installinit: - dh_installinit --name=bird - dh_installinit --name=bird6 + dh_installinit --name=bird -R + dh_installinit --name=bird6 -R DB2MAN = /usr/share/sgml/docbook/stylesheet/xsl/nwalsh/manpages/docbook.xsl XP = xsltproc -''-nonet -''-param man.charmap.use.subset "0" Regards, Alexander Morlang ------ SysEleven GmbH Ohlauer Straße 43 10999 Berlin T +49 30 233 2012 0 F +49 30 616 7555 0 http://www.syseleven.de http://www.facebook.com/SysEleven Aktueller System-Status immer unter: http://www.twitter.com/syseleven Firmensitz: Berlin Registergericht: AG Berlin Charlottenburg, HRB 108571 B Geschäftsführer: Marc Korthaus, Jens Ihlenfeld

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bird-1.6.2 rpm
by Roman Romanyak 13 Oct '16

13 Oct '16

Hello bird users, is there bird-1.6.2 rpm available? The latest versin at bird.network.cz is bird-1.6.0-1. Thanks!

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CLI debugging
by micah anderson 12 Oct '16

12 Oct '16

Hi, I wanted to debug the states of a neighbor, but I cannot seem to figure out how to change debugging on the command-line in a way that *seems* according to the argument options: debug (<protocol> | <pattern> | all) (all | off | { states | routes | filters | interfaces | events | packets }) Control protocol debugging via BIRD logs BIRD 1.6.0 ready. bird> debug all states syntax error bird> debug all events syntax error bird> debug cogent states syntax error bird> debug cogent events syntax error bird> debug cogent all bird> The 'all' works, but the others do not. Do I misunderstand the argument option specification? Thanks, micah

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Out of memory crash of 3000 routes in BGP
by Madhu 10 Oct '16

10 Oct '16

Hi, I am seeing a out of memory crash with 3000 routes in BGP. Is this a known issue? I m seeing this issue in 1.6.0 and 1.6.2 . [ 1098.912753] Call Trace: [ 1098.915481] [<ffffffff81b96521>] dump_stack+0x64/0x82 [ 1098.921225] [<ffffffff81b91a46>] dump_header+0x7f/0x1f1 [ 1098.927163] [<ffffffff810b3e76>] ? put_online_cpus+0x56/0x80 [ 1098.933587] [<ffffffff811110ac>] ? rcu_oom_notify+0xcc/0xf0 [ 1098.939914] [<ffffffff811a2735>] oom_kill_process+0x205/0x360 [ 1098.946435] [<ffffffff814595b5>] ? security_capable_noaudit+0x15/0x20 [ 1098.953733] [<ffffffff811a2ee2>] out_of_memory+0x492/0x4d0 [ 1098.959962] [<ffffffff811a8f30>] __alloc_pages_nodemask+0xa00/0xb60 [ 1098.967067] [<ffffffff811eb1fa>] alloc_pages_vma+0x9a/0x160 [ 1098.973393] [<ffffffff811cd5c8>] handle_mm_fault+0xd38/0x1080 [ 1098.979914] [<ffffffff811d4b74>] ? change_protection+0x594/0x850 [ 1098.986726] [<ffffffff8109f5ae>] __do_page_fault+0x19e/0x560 [ 1098.993149] [<ffffffff811d4f81>] ? mprotect_fixup+0x151/0x290 [ 1098.999669] [<ffffffff8109f9a1>] do_page_fault+0x31/0x70 [ 1099.005704] [<ffffffff81ba40e8>] page_fault+0x28/0x30 Madhu

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Fwd: ECMP BGP issue of more than 16 paths
by Madhu 07 Oct '16

07 Oct '16

Hi, I have an issue with bird routing daemon where I have EBGP between S1 and S2 with 62 paths. I am able to learn all the BGP routes with 62 paths in bird. But the kernel only showing 16 paths. I configured “merge paths 255” under protocol kernel, but still it shows only 16 paths. Can somebody help me with this? 120.100.104.96/28 via 100.1.2.0 on br1003 [AG1-CR1-link0 17:06:48] * (100) [i] via 100.1.62.0 on br1063 [AG1-CR1-link61 17:07:14] (100) [i] via 100.1.59.0 on br1060 [AG1-CR1-link58 17:07:14] (100) [i] via 100.1.57.0 on br1058 [AG1-CR1-link56 17:07:14] (100) [i] via 100.1.56.0 on br1057 [AG1-CR1-link55 17:07:12] (100) [i] via 100.1.55.0 on br1056 [AG1-CR1-link54 17:07:12] (100) [i] via 100.1.54.0 on br1055 [AG1-CR1-link53 17:07:12] (100) [i] via 100.1.53.0 on br1054 [AG1-CR1-link52 17:07:12] (100) [i] via 100.1.52.0 on br1053 [AG1-CR1-link51 17:07:10] (100) [i] via 100.1.50.0 on br1051 [AG1-CR1-link49 17:07:10] (100) [i] via 100.1.47.0 on br1048 [AG1-CR1-link46 17:07:10] (100) [i] via 100.1.46.0 on br1047 [AG1-CR1-link45 17:07:10] (100) [i] via 100.1.45.0 on br1046 [AG1-CR1-link44 17:07:08] (100) [i] via 100.1.44.0 on br1045 [AG1-CR1-link43 17:07:08] (100) [i] via 100.1.42.0 on br1043 [AG1-CR1-link41 17:07:08] (100) [i] via 100.1.41.0 on br1042 [AG1-CR1-link40 17:07:08] (100) [i] via 100.1.37.0 on br1038 [AG1-CR1-link36 17:07:04] (100) [i] via 100.1.35.0 on br1036 [AG1-CR1-link34 17:07:04] (100) [i] via 100.1.34.0 on br1035 [AG1-CR1-link33 17:07:04] (100) [i] via 100.1.32.0 on br1033 [AG1-CR1-link31 17:07:04] (100) [i] via 100.1.31.0 on br1032 [AG1-CR1-link30 17:07:01] (100) [i] via 100.1.30.0 on br1031 [AG1-CR1-link29 17:07:01] (100) [i] via 100.1.29.0 on br1030 [AG1-CR1-link28 17:07:01] (100) [i] via 100.1.27.0 on br1028 [AG1-CR1-link25 17:07:01] (100) [i] via 100.1.26.0 on br1027 [AG1-CR1-link24 17:06:57] (100) [i] via 100.1.25.0 on br1026 [AG1-CR1-link23 17:06:57] (100) [i] via 100.1.21.0 on br1022 [AG1-CR1-link19 17:06:57] (100) [i] via 100.1.19.0 on br1020 [AG1-CR1-link17 17:06:57] (100) [i] via 100.1.18.0 on br1019 [AG1-CR1-link16 17:06:54] (100) [i] via 100.1.17.0 on br1018 [AG1-CR1-link15 17:06:54] (100) [i] via 100.1.15.0 on br1016 [AG1-CR1-link13 17:06:54] (100) [i] via 100.1.13.0 on br1014 [AG1-CR1-link11 17:06:54] (100) [i] via 100.1.12.0 on br1013 [AG1-CR1-link10 17:06:51] (100) [i] via 100.1.9.0 on br1010 [AG1-CR1-link7 17:06:51] (100) [i] via 100.1.7.0 on br1008 [AG1-CR1-link5 17:06:51] (100) [i] via 100.1.5.0 on br1006 [AG1-CR1-link3 17:06:51] (100) [i] via 100.1.3.0 on br1004 [AG1-CR1-link1 17:04:43] (100) [i] via 100.1.63.0 on br1064 [AG1-CR1-link62 17:05:54] (100) [i] via 100.1.61.0 on br1062 [AG1-CR1-link60 17:05:54] (100) [i] via 100.1.60.0 on br1061 [AG1-CR1-link59 17:05:54] (100) [i] via 100.1.58.0 on br1059 [AG1-CR1-link57 17:05:49] (100) [i] via 100.1.51.0 on br1052 [AG1-CR1-link50 17:05:49] (100) [i] via 100.1.49.0 on br1050 [AG1-CR1-link48 17:05:49] (100) [i] via 100.1.48.0 on br1049 [AG1-CR1-link47 17:05:49] (100) [i] via 100.1.43.0 on br1044 [AG1-CR1-link42 17:05:43] (100) [i] via 100.1.40.0 on br1041 [AG1-CR1-link39 17:05:43] (100) [i] via 100.1.39.0 on br1040 [AG1-CR1-link38 17:05:43] (100) [i] via 100.1.38.0 on br1039 [AG1-CR1-link37 17:05:43] (100) [i] via 100.1.36.0 on br1037 [AG1-CR1-link35 17:05:39] (100) [i] via 100.1.33.0 on br1034 [AG1-CR1-link32 17:05:39] (100) [i] via 100.1.28.0 on br1029 [AG1-CR1-link27 17:05:39] (100) [i] via 100.1.24.0 on br1025 [AG1-CR1-link22 17:05:39] (100) [i] via 100.1.23.0 on br1024 [AG1-CR1-link21 17:05:36] (100) [i] via 100.1.22.0 on br1023 [AG1-CR1-link20 17:05:36] (100) [i] via 100.1.20.0 on br1021 [AG1-CR1-link18 17:05:36] (100) [i] via 100.1.16.0 on br1017 [AG1-CR1-link14 17:05:36] (100) [i] via 100.1.14.0 on br1015 [AG1-CR1-link12 17:05:35] (100) [i] via 100.1.11.0 on br1012 [AG1-CR1-link9 17:05:35] (100) [i] via 100.1.10.0 on br1011 [AG1-CR1-link8 17:05:35] (100) [i] via 100.1.8.0 on br1009 [AG1-CR1-link6 17:05:35] (100) [i] via 100.1.6.0 on br1007 [AG1-CR1-link4 17:05:35] (100) [i] via 100.1.4.0 on br1005 [AG1-CR1-link2 17:05:35] (100) [i] # ip route list 120.100.104.96/28 120.100.104.96/28 proto bird nexthop via 100.1.2.0 dev br1003 weight 1 nexthop via 100.1.3.0 dev br1004 weight 1 nexthop via 100.1.4.0 dev br1005 weight 1 nexthop via 100.1.5.0 dev br1006 weight 1 nexthop via 100.1.6.0 dev br1007 weight 1 nexthop via 100.1.7.0 dev br1008 weight 1 nexthop via 100.1.8.0 dev br1009 weight 1 nexthop via 100.1.9.0 dev br1010 weight 1 nexthop via 100.1.10.0 dev br1011 weight 1 nexthop via 100.1.11.0 dev br1012 weight 1 nexthop via 100.1.12.0 dev br1013 weight 1 nexthop via 100.1.13.0 dev br1014 weight 1 nexthop via 100.1.14.0 dev br1015 weight 1 nexthop via 100.1.15.0 dev br1016 weight 1 nexthop via 100.1.16.0 dev br1017 weight 1 nexthop via 100.1.17.0 dev br1018 weight 1 router id 100.0.2.1; log syslog all; protocol kernel { scan time 60; import all; merge paths 255; export all; # Actually insert routes into the kernel routing table } Thanks, Madhu

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Minimalist BGP Anycast Lab Built from VMs?
by Traiano Welcome 05 Oct '16

05 Oct '16

Hi List What is the simplest BGP anycast lab I can set up using Linux VMs running on virtualbox? I'm trying to build the minimum virtual lab to test an Anycast configuration based on BGP. I have enough computing power to run about 4 linux VMs on Virtualbox on a single laptop. I'm using BIRD as a route server (not Quagga, not Zebra) on Linux. Is this even viable? I'd appreciate it if anyone could share their experiences/configurations, diagrams if they've set up a similar lab. Thanks in advance, Traiano

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protocol kernel segfault
by Julien Sansonnens 29 Sep '16

29 Sep '16

Hi list, I'm using bird 1.6.1 on debian Jessie. For some reason (COULD be related to updating to 1.6.1, but not sure), bird6 is not working anymore. It used to work some weeks ago. The problem is related to "protocol kernel". When I set it like this: protocol kernel { import none; export all; } it crashed bird6. Everytime I get this segfault: Sep 29 12:24:11 mymachine kernel: [ 8588.114910] bird6[2974]: segfault at 0 ip (null) sp 00007ffd04645608 error 14 in libnss_files-2.19.so[ 7f91281db000+b000] When I remove this protocol, everything is working fine. Please can you help ? Thanks Julien

2 1

OSPF "hack translation" sought
by Clemens Schrimpe 29 Sep '16

29 Sep '16

Gentlepeople - I was wondering what the "translation" of the usual hack on Quagga/JunOS/etc. for OSPF into a proper BIRD config was to allow OSPF to propagate routes to directly connected networks, which are not really part of an OSPF area. In those other systems I would make those interfaces just "passive" members, but BIRD doesn't know "passive interfaces". Making them stubs has obvious other side effects, which is why I just want the "passive" hack to work under BIRD. So what's the equivalent to do this in BIRD? Thanks, Clemens Schrimpe

2 1