[Oisf-users] Suricata 4.0.3 with Napatech problems

[Steve Castellarin]

Here is the zipped stats.log.  I restarted the Napatech drivers before
running Suricata 4.0.3 to clear out any previous drop counters, etc.

The first time I saw a packet drop was at the 12:20:51 mark, and you'll see
"nt12.drop" increment.  During this time one of the CPUs acting as a
"worker" was at 100%.  But these drops recovered at the 12:20:58 mark,
where "nt12.drop" stays constant at 13803.  The big issue triggered at
the 12:27:05 mark in the file - where one worker CPU was stuck at 100%
followed by packet drops in host buffer "nt3.drop".  Then came a second CPU
at 100% (another "worker" CPU) and packet drops in buffer "nt2.drop" at
12:27:33.  I finally killed Suricata just before 12:27:54, where you see
all host buffers beginning to drop packets.

I'm also including the output from the "suricata --dump-config" command.

On Thu, Jan 11, 2018 at 11:40 AM, Peter Manev <petermanev at gmail.com> wrote:

> On Thu, Jan 11, 2018 at 8:02 AM, Steve Castellarin
> <steve.castellarin at gmail.com> wrote:
> > Peter, yes that is correct.  I worked for almost a couple weeks with
> > Napatech support and they believed the Napatech setup (ntservice.ini and
> > custom NTPL script) are working as they should.
> >
>
> Ok.
>
> One major difference between Suricata 3.x and 4.0.x in terms of
> Napatech is that they did update the code, some fixes and updated the
> counters.
> There were a bunch of upgrades in Suricata too.
> Is it possible to send over a stats.log - when the issue starts occuring?
>
>
> > On Thu, Jan 11, 2018 at 9:52 AM, Peter Manev <petermanev at gmail.com>
> wrote:
> >>
> >> I
> >>
> >> On 11 Jan 2018, at 07:19, Steve Castellarin <
> steve.castellarin at gmail.com>
> >> wrote:
> >>
> >> After my last email yesterday I decided to go back to our 3.1.1 install
> of
> >> Suricata, with
> >>
> >>
> >> the upgraded Napatech version.  Since then I've seen no packets dropped
> >> with sustained bandwidth of between 1 and 1.7Gbps.  So I'm not sure
> what is
> >> going on with my configuration/setup of Suricata 4.0.3.
> >>
> >>
> >>
> >> So the only thing that you changed is the upgrade of the Napatech
> drivers
> >> ?
> >> The Suricata config stayed the same -  you just upgraded to 4.0.3 (from
> >> 3.1.1) and the observed effect was - after a while all (or most) cpus
> get
> >> pegged at 100% - is that correct ?
> >>
> >>
> >> On Wed, Jan 10, 2018 at 4:46 PM, Steve Castellarin
> >> <steve.castellarin at gmail.com> wrote:
> >>>
> >>> Hey Peter, no there is no error messages.
> >>>
> >>> On Jan 10, 2018 4:37 PM, "Peter Manev" <petermanev at gmail.com> wrote:
> >>>
> >>> On Wed, Jan 10, 2018 at 11:29 AM, Steve Castellarin
> >>> <steve.castellarin at gmail.com> wrote:
> >>> > Hey Peter,
> >>>
> >>> Are there any errors msgs in suricata.log when that happens ?
> >>>
> >>> Thank you
> >>>
> >>>
> >>>
> >>> --
> >>> Regards,
> >>> Peter Manev
> >>>
> >>>
> >>
> >
>
>
>
> --
> Regards,
> Peter Manev
>
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