System freezes with Bird running on FreeBSD 11.1

Alexander Shikov a.shikov at
Mon Jan 8 14:04:39 CET 2018

On Wed, Jan 03, 2018 at 11:30:48AM -0200, Clistenes Viana wrote:
> Hello Guys,
> Let me do a question about bird 1.6.3 to see if you can help me on
> this, we are trying to running it in a server with freebsd 11.1, but
> the system freeze every 20 seconds, looking for the logs we found some
> I/O loop cycle messages like this:
> Jan  2 14:03:15 tau bird: I/O loop cycle took 12509 ms for 8 events
> We think that the problem can be have a relationship to the Kernel
> protocol, when the scan run every 20 seconds to the search for changes
> and insert in the table, we know that this time can be manipulated by
> the flag scan time, but it will just to delay the problem and not
> solves that.
> Enabling or not the learn flag also is not making difference to solve
> the problem.


We had the similar problem when server had run out of RAM.

Alexander Shikov
Technical Staff, Digital Telecom IX
Tel.: +380 44 201 14 07

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