https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263062
paul vixie <p...@redbarn.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |p...@redbarn.org
--- Comment #14 from paul vixie <p...@redbarn.org> ---
> ...
> For now the server already has stopped working three times with:
> Aug 10 07:25:38 mailrelay kernel: [zone: udp_inpcb] kern.ipc.maxsockets limit
> reached
>
> I guess the DNS queries are the reason for this.
> ...
this is normal for all recursive dns servers not just unbound, because kaminsky
resistance requires randomized source udp port numbers for cache miss
transactions, which in turn requires a moderately large working set of bound
udp sockets, with heavy churn.
if this turns out to be chipset dependent, we should be looking at atomic test
and set operations. i long ago turned off hyperthreading because
microarchtectural details turned out to be motherboard dependent. there may be
similar problems still lurking, but on a lark, maybe try turning off
hyperthreading?
--
You are receiving this mail because:
You are the assignee for the bug.
