[Unbound-users] segfault when using dnstap at high load
writeme at rogeriobastos.eti.br
Tue Apr 7 11:46:51 UTC 2015
On 2015-04-06 22:44, Robert Edmonds wrote:
> Rogerio Bastos wrote:
>> I'm trying to test unbound witk dnstap. It works fine with low load,
>> exists with segfault at high load. The segfault only happens when
>> dnstap is
>> enabled in configuration.
>> I am using the debian package (version 1.5.3) avaible in  and
>> with dnstap enabled.
>> I'm following instruction descripted in  and using fstrm version
>> To test the server, I'm using dnsblast  with the follow command:
>> ./dnsblast <server address> 50000 500
> Hi, Rogerio:
> Sorry to hear that. I would be happy to help debug dnstap (I wrote the
> dnstap patchset for Unbound). Can I get some information about your
> Can you show the "dnstap:" block of settings from your config, and the
> "num-threads" server setting?
I'm using optimisation settings based on  (the Debian version is
compiled with libevent):
I'm using the example from dnstap's site :
> Does fstrm's "make check" test suite succeed?
Yes, all tests is ok.
> What version of protobuf-c are you using? (Did you compile from
> or did you use a packaged version?)
The packaged version from Debian Jessie (version 1.0.2).
> What OS version are you using? (Based on your mention of the Debian
> package from experimental, I would guess Debian or Ubuntu.)
Debian Jessie, the next-stable version.
> Are you using a uniprocessor or SMP machine? Also, since there are
> architecture-specific parts in fstrm, what architecture are you using?
I'm using a amd64 virtual machine with a two core CPU.
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