Date: Mon, 25 Feb 2013 10:29:27 -0800 From: Jack Vogel <jfvogel@gmail.com> To: "Christopher D. Harrison" <harrison@biostat.wisc.edu> Cc: freebsd-net@freebsd.org Subject: Re: igb network lockups Message-ID: <CAFOYbckDFJKRip%2Be=a%2B_JPHhk%2BHbAikRBK0dHEBDDEgdsZT6sw@mail.gmail.com> In-Reply-To: <512BAA60.3060703@biostat.wisc.edu> References: <512BAA60.3060703@biostat.wisc.edu>
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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> 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<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 mailing list > http://lists.freebsd.org/**mailman/listinfo/freebsd-net<http://lists.freebsd.org/mailman/listinfo/freebsd-net>; > To unsubscribe, send any mail to "freebsd-net-unsubscribe@**freebsd.org<freebsd-net-unsubscribe@freebsd.org> > " >
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