Would it be possible for the driver to report how many clusters it calculated that it needs, whenever it runs into this memory shortage during attach? That way an administrator might have some idea how much to increase their tunables in order to meet the driver's requirements.
As it is, it's merely a guessing game or requires digging into driver source to come up with the right numbers. -----Original Message----- From: owner-freebsd-...@freebsd.org [mailto:owner-freebsd-...@freebsd.org] On Behalf Of Jack Vogel Sent: Friday, November 21, 2014 10:23 AM To: Gerrit Kühn Cc: FreeBSD Net Subject: Re: igb Could not setup receive structures (again) The message is pretty straightforward, its only cause is the inability of the driver to get the necessary clusters to populate the RX rings. After you get the error do a `netstat -m` and see what the state of the 9K jumbo pool is, for that is the size you would be using. Depending on the specific device type you may have up to 8 rings per interface, and with a ring size of 1K... It does seem like you should have enough, but maybe something else in your system is using the pool? As I said, look at netstat, it should give you the truth, and then adjust the allocated size to fit your needs. Jack On Fri, Nov 21, 2014 at 2:48 AM, Gerrit Kühn <gerrit.ku...@aei.mpg.de> wrote: > Hi all, > > I get the error message above when trying to go for jumbo frames (mtu > 9000) on a system here. I found a lot of comments on this, but they all > state that this is due to a too low setting for mbufs in FreeBSD8/9 > settings. > However, I have 10-stable here, and the settings look rather high to me: > > kern.ipc.nmbclusters: 1014856 > kern.ipc.maxmbufmem: 8313700352 > kern.ipc.nmbufs: 6495090 > kern.ipc.nmbjumbop: 507428 > kern.ipc.nmbjumbo9: 451047 > kern.ipc.nmbjumbo16: 338284 > > FreeBSD mclane 10.0-STABLE FreeBSD 10.0-STABLE #5 r261710: Mon Feb 10 > 16:55:29 CET 2014 > r...@mclane.rt.aei.uni-hannover.de:/usr/obj/usr/src/sys/GENERIC > amd64 > > > Is this still too low? I have a 6core machine with 6 igb interfaces, and I > cannot even get one of these set to mtu 9000 without getting "Could not > setup receive structures". > > > cu > Gerrit > _______________________________________________ > 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" > _______________________________________________ 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" This email message is intended for the use of the person to whom it has been sent, and may contain information that is confidential or legally protected. If you are not the intended recipient or have received this message in error, you are not authorized to copy, distribute, or otherwise use this message or its attachments. Please notify the sender immediately by return e-mail and permanently delete this message and any attachments. Verio Inc. makes no warranty that this email is error or virus free. Thank you. _______________________________________________ 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"
