Date: Tue, 29 May 2012 22:14:02 +0530 From: Ziyan Maraikar <ziyanm@gmail.com> To: John Baldwin <jhb@freebsd.org> Cc: FreeBSD-gnats-submit@freebsd.org, freebsd-amd64@freebsd.org, Darshana Jayasinghe <darshana.jayasinghe@gmail.com> Subject: Re: amd64/168342: mbuf exhaustion hangs all daemons in keglimit state Message-ID: <1966F26E-3E73-4E78-8F54-DBDC11195954@gmail.com> In-Reply-To: <201205290812.40093.jhb@freebsd.org> References: <201205252034.q4PKYKcB038870@nanuoya.pdn.ac.lk> <201205290812.40093.jhb@freebsd.org>
index | next in thread | previous in thread | raw e-mail
Hello John, Thanks for the response. > > Have you tried increasing kern.ipc.nmbclusters? Alternatively, have you tried > restricting igb to only using 1 queue? It sounds like all your igb interfaces > are allocating all of your mbuf clusters for their receive rings. > I found this very suggestion on several mailing list discussions [1] and set these values on Saturday. kern.ipc.nmbclusters="131072" hw.igb.num_queues="2" So far everything seems to back to normal, and netstat -m shows plenty of headroom now. The problem cropped up after running several months on 9.0-RELEASE when I brought up another interface. Disabling the new interface didn't restore normal operation, however. I also tried 8.3-RELEASE but the problem was worse on it. [1] http://osdir.com/ml/freebsd-stable/2012-02/msg00563.html __ Regards Ziyan.home | help
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?1966F26E-3E73-4E78-8F54-DBDC11195954>