On Tue, Sep 23, 2014 at 07:17:08PM +0400, Alexander V. Chernikov wrote: > On 23.09.2014 18:44, Luigi Rizzo wrote: ... > However, in addition to non-symmetric RSS (which is hopefully being > addressed), there is another > usual "producer - multuple consumers" problem: one snort process can > start process packets very slowly, or hang, or crash. > In that case host RX ring is getting full, NIC fails to push packets to > given queue and start storing them inside > its skid buffer (512k for Niantic afair). After that buffer becomes full > traffic and all processing stops.
interesting. Actually, scary! Do you have any reference to the data sheets documenting that behaviour ? I have indeed received reports saying something similar but always suspected user errors. The fact that a starved queue can consume the entire internal buffer seems a really bad bug. At least you can overcome this one by having the demux done in software. cheers luigi _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
