BIRD - iBGP between RS over IPv6 lead to crash (segfault)

[Ondrej Zajicek]

On Fri, Jul 09, 2021 at 11:43:53AM +0300, Javor Kliachev wrote:
> Hello, 
> 
> We're using BIRD 1.6.4 as Route Server. 
> 
> Recently we have decided to establish an internal BGP session between both RS over IPv6 
> 
> But when we added our config in BIRD then it has crashed immediately with the following error: 
> [35878512.553496] bird6[2545]: segfault at 0 ip 000055f60242c331 sp 00007ffd43689460 error 4 in bird6[55f60240a000+86000] 
> Another more strange: 
> 
> Initially before the crash we have added the following config below and RS was stable but session was not able to establish. 
> We have made a capture of the traffic during the attempt of session establishment and seems TCP handshake works but then not procced futher. 
>
> ...
> 
> Could someone BIRD developer to suggest some solution for fixing this issue? 
> We highly appreciate any kind of support. 

Hello

Well, first upgrade and try latest legacy version (1.6.8). Version 1.6.4
is too old and not worth to us to check whether it was already fixed or
not.

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."