Segfaults with 1.6.1 (was: Re: Version 1.6.1)

[Justin Cattle]

Me too!

Config:

#
# BIRD configuration
#
# Generated by Puppet, DO NOT EDIT!
#

log syslog { info, remote, warning, error, auth, fatal, bug };

router id 10.2.3.0;

# Filter that
filter bgp_import {
accept;
}

# Accept locally-generated host routes only
filter bgp_export {
if source ~ [RTS_STATIC, RTS_DEVICE, RTS_INHERIT] && net.len = 32 then
accept;
else reject;
}

# Set source and only accept BGP routes
filter kernel_export {
krt_prefsrc = 10.2.3.0;

if source = RTS_BGP then accept;
else reject;
}

protocol kernel {
persist; # Don't remove routes on bird shutdown
scan time 2; # Scan kernel routing table every 2 seconds
device routes;
import all;
export filter kernel_export;
learn on;
merge paths on; # Multipath
preference 230; # Prefer kernel routes to BGP/OSPF
}

protocol device {
scan time 2; # Scan interfaces every 2 seconds
}

protocol static {
}

protocol direct {
}

template bgp tor {
local as 4288283392;
bfd on;
import filter bgp_import;
export filter bgp_export;
}

protocol bgp tor1 from tor {
neighbor 10.2.4.0 as 65432;
}

protocol bgp tor2 from tor {
neighbor 10.2.4.128 as 65432;
}


protocol bfd {
interface "eth0" {
interval 1000 ms;
multiplier 4;
};
interface "eth1" {
interval 1000 ms;
multiplier 4;
};
}




Cheers,
Just

On 27 September 2016 at 09:50, Maximilian Wilhelm <max at rfc2324.org> wrote:

> Anno domini 2016 Tim Weippert scripsit:
>
> Hi,
>
> > On Thu, Sep 22, 2016 at 01:52:20PM +0200, Ondrej Filip wrote:
> > > Dear users,
> > > a new version of the 1.6.x branch is out:
> >
> > Nice job.
>
> Indeed.
>
> > But on one of my environment Bird 1.6.1 immediately segfaults. I tried
> > both the provided Debian package from cz.nic and also an recompile on my
> > own.
>
> > Both seems to have the same segfault. It tried something and think i can
> > narrow it down on an PIPE with ~ 500 routes for ipv4 and ~ 300 routes
> > for ipv6.
> >
> > If i disable this pipe, bird runs without problems, all BGP Peerings and
> > OSPF works ok. In another Environment, where muss less routes, i hadn't
> > an segfault since update.
> >
> > It seems only segfaults, when pipe to master/kernel and with "more"
> > routes. I tried some testing with:
> >
> > BGP Peering <-> T_BGP_PEER
> >
> > with 422 routes, but if i enable an Pipe from T_BPG_PEER <-> master,
> > bird segfaults.
> >
> > [1033333.489725] bird[17404]: segfault at 0 ip           (null) sp
> 00007ffe5d057a68 error 14 in bird[5604b045a000+70000]
> > [1033333.870901] bird[17735]: segfault at 0 ip           (null) sp
> 00007ffcf41235f8 error 14 in bird[55b35dbdc000+70000]
> >
> > Attached is an strace file. If you need my config, please give me a
> > short notice, i can provide it.
>
> I'm facing the same problem here:
>
> gw05.pad.ffho.net:~# dmesg -T | grep bird
> [Tue Sep 27 06:53:06 2016] bird[14102]: segfault at 0 ip (null) sp
> 00007ffd855c52d8 error 14 in libnss_files-2.13.so[ 7f0ac813e000+b000]
> [Tue Sep 27 06:53:12 2016] bird6[14133]: segfault at 0 ip (null) sp
> 00007fffe5a85f98 error 14 in libnss_files-2.13.so [7f50f6dce000+b000]
>
> We are using a PIPE protocol as well, handling 560 routes.
>
> I can provide you with the config as well, if needed.
>
> Best
> Max
>

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