Date: Wed, 30 Mar 2011 09:58:11 +0400 From: Andrey Zonov <andrey@zonov.org> To: Jack Vogel <jfvogel@gmail.com> Cc: freebsd-net@freebsd.org Subject: Re: igb(4) won't start with "igb0: Could not setup receive structures" Message-ID: <4D92C673.2080107@zonov.org> In-Reply-To: <AANLkTinZ=Js_pqwtAWX8yqPw==3Fm-7FA50MHDuz0Y86@mail.gmail.com> References: <4D923931.2070606@zonov.org> <AANLkTinZ=Js_pqwtAWX8yqPw==3Fm-7FA50MHDuz0Y86@mail.gmail.com>
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Hi, 9k jumbos is ubiquitous now. I believe we use 9k jumbos for last four years or more. You've got unworkable system after upgrade from 8.1 to 8.2 and documentation doesn't help here. It isn't a good way is made driver (or system) which doesn't work with jumbo by default. My point is if you're using machine with 8 CPUs than maxusers/clusters/9k mbufs should have been increased by system, because on this machine minimum 2Gb memory is available. -- Andrey Zonov 30.03.2011 1:55, Jack Vogel ?????: > Our validation group has a default postinstall process, every > installed system gets those changes, > and these mbuf pool sizes are in that set of changes. While I'm not > opposed to system default settings > changing its usually necessary to have local sys changes anyway, after > all you don't get 9K jumbos > without manually specifying them as well :) > > Regards, > > Jack > > > On Tue, Mar 29, 2011 at 12:55 PM, Andrey Zonov <andrey@zonov.org > <mailto:andrey@zonov.org>> wrote: > > Hi, > > New igb driver (and I think em too) is required too much 9k mbufs > when it's been configured with mtu = 9000. On machine with 8 CPUs, > driver is required 8192 9k mbufs, but by default there is only > 6400 and network won't start. In previous versions for big mtu it > was used 4k mbufs, by default there is 12800 and all worked fine. > > Maybe it's time to think about increasing default > kern.maxusers/kern.ipc.nmbclusters? or use mp_ncpus for > calculation these values? or just increase amount of > mbuf_cluster/mbuf_jumbo_page/mbuf_jumbo_9k from that driver... > > I just want igb to work out-of-the-box. > > -- > Andrey Zonov > > _______________________________________________ > freebsd-net@freebsd.org <mailto:freebsd-net@freebsd.org> mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to > "freebsd-net-unsubscribe@freebsd.org > <mailto:freebsd-net-unsubscribe@freebsd.org>" > >
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