igb network lockups

[Christopher D. Harrison]

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 at biostat.wisc.edu <mailto:harrison at 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 at freebsd.org <mailto:freebsd-net at freebsd.org> mailing list
>     http://lists.freebsd.org/mailman/listinfo/freebsd-net
>     To unsubscribe, send any mail to
>     "freebsd-net-unsubscribe at freebsd.org
>     <mailto:freebsd-net-unsubscribe at freebsd.org>"
>
>