Date: Mon, 25 Feb 2013 12:38:05 -0600 From: "Christopher D. Harrison" <harrison@biostat.wisc.edu> To: Jack Vogel <jfvogel@gmail.com> Cc: freebsd-net@freebsd.org Subject: Re: igb network lockups Message-ID: <512BAF8D.7080308@biostat.wisc.edu> In-Reply-To: <CAFOYbckDFJKRip%2Be=a%2B_JPHhk%2BHbAikRBK0dHEBDDEgdsZT6sw@mail.gmail.com> References: <512BAA60.3060703@biostat.wisc.edu> <CAFOYbckDFJKRip%2Be=a%2B_JPHhk%2BHbAikRBK0dHEBDDEgdsZT6sw@mail.gmail.com>
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Sure, The problem appears on both systems running with ALTQ and vanilla. -C On 02/25/13 12:29, Jack Vogel wrote: > I've not heard of this problem, but I think most users do not use > ALTQ, and we (Intel) do not > test using it. Can it be eliminated from the equation? > > Jack > > > On Mon, Feb 25, 2013 at 10:16 AM, Christopher D. Harrison > <harrison@biostat.wisc.edu <mailto:harrison@biostat.wisc.edu>> wrote: > > I recently have been experiencing network "freezes" and network > "lockups" on our Freebsd 9.1 systems which are running zfs and nfs > file servers. > I upgraded from 9.0 to 9.1 about 2 months ago and we have been > having issues with almost bi-monthly. The issue manifests in the > system becomes unresponsive to any/all nfs clients. The system > is not resource bound as our I/O is low to disk and our network is > usually in the 20mbit/40mbit range. We do notice a correlation > between temporary i/o spikes and network freezes but not enough to > send our system in to "lockup" mode for the next 5min. Currently > we have 4 igb nics in 2 aggr's with 8 queue's per nic and our > dev.igb reports: > > dev.igb.3.%desc: Intel(R) PRO/1000 Network Connection version - 2.3.4 > > I am almost certain the problem is with the ibg driver as a friend > is also experiencing the same problem with the same intel igb nic. > He has addressed the issue by restarting the network using netif > on his systems. According to my friend, once the network > interfaces get cleared, everything comes back and starts working > as expected. > > I have noticed an issue with the igb driver and I was looking for > thoughts on how to help address this problem. > http://freebsd.1045724.n5.nabble.com/em-igb-if-transmit-drbr-and-ALTQ-td5760338.html > > Thoughts/Ideas are greatly appreciated!!! > > -C > > _______________________________________________ > 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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