--- On Fri, 4/2/10, K. Macy <km...@freebsd.org> wrote:
> From: K. Macy <km...@freebsd.org> > Subject: Re: kern/144917: Flowtable crashes system > To: "Ilya Zhuravlev" <i...@el-crane.net> > Cc: freebsd-net@freebsd.org, "Evgenii Davidov" <d...@korolev-net.ru> > Date: Friday, April 2, 2010, 11:07 PM > Please try with the latest 8-STABLE > and tell me if recent changes fix it. > > Thanks, > Kip > > On Thu, Mar 25, 2010 at 8:32 AM, Ilya Zhuravlev <i...@el-crane.net> > wrote: > > On 21.03.2010 17:04, Evgenii Davidov wrote: > >> > >> Здравствуйте, > >> > >> On Sat, Mar 20, 2010 at 11:06:35PM +0000, Doychin > Dokov пишет: > >> > >>>> Description: > >>> > >>> It seems like flowtable has been merged and > enabled by default in 8.0.... > >>> which is a really really bad idea. > >>> On a system which handles two full BGP tables > it makes one of the CPU > >>> cores run at 100% right after most of the > prefixes get installed in the > >>> routing table. > >> > >> i saw the same effect with ospf > >> > > > > 8.0-p2, 2 full-view with openbgpd > > "tuning": > > net.inet.tcp.blackhole=2 > > net.inet.udp.blackhole=1 > > net.inet.icmp.icmplim_output=0 > > net.inet.icmp.drop_redirect=1 > > net.inet.flowtable.nmbflows=32768 > > > > 1 week uptime.Now I think only about increasing tx/rx > descriptors to reduce > > interrupts (default values was not changed) > > > > > > netstat -w1 -Iigb0 > > input (igb0) > output > > packets errs bytes packets errs > bytes colls > > 49100 0 12290513 23693 0 > 27268884 0 > > 48322 0 12688283 24332 0 > 28099404 0 > > 50602 0 12759620 24437 0 > 27698341 0 > > 47857 0 11354124 21410 0 > 23845155 0 > > > > netstat -w1 -Iigb1 > > input (igb1) > output > > packets errs bytes packets errs > bytes colls > > 32428 0 35027019 24562 0 > 5624934 0 > > 30621 0 33384339 23569 0 > 4456944 0 > > 28419 0 31014269 21571 0 > 3638083 0 > > 29409 0 32524760 22137 0 > 3503600 0 > > 30965 0 33532742 23973 0 > 5089231 0 > > > > netstat -w1 -Iem0 > > input (em0) > output > > packets errs bytes packets errs > bytes colls > > 17217 0 3929366 72741 0 > 46377762 0 > > 17412 0 3745112 75522 0 > 49338883 0 > > 18385 0 4014568 77444 0 > 50532101 0 > > 17142 0 3875518 77125 0 > 47646681 0 > > 16870 0 3528316 73188 0 > 47940959 0 > > 17069 0 3682891 80268 0 > 52904747 0 > > 17313 0 4101576 75586 0 > 51933330 0 > > _______________________________________________ > > freebsd-net@freebsd.org How about telling us how to turn it off; or better yet how to not compile it into the kernel at all. Thats the best solution. As my Dad used to say on a regular basis, we need this like we need a hole in our head. Is 8.0 the Kip Macy personal test bed? Why is something that virtually no-one needs enabled by default? Barney _______________________________________________ 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"
