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Date:      Sat, 20 Nov 2010 17:09:28 +0200
From:      rolnas@gmail.com
To:        freebsd-stable@freebsd.org
Subject:   problems with network on em
Message-ID:  <FAAB9340-52AB-4874-97D7-152B7FA0B466@gmail.com>

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I'm experiencing network interface stalls on em in FreeBSD 8.1-RELEASE =
(-p1).
It looks like the problem could be solved in 8-STABLE, but should I =
upgrade to it ?
Is it OK to try to get only em driver code and recompile as module and =
try to run it ?

sysctl dev.em.2.stats=3D1:
...
em2: Missed Packets =3D 101334
em2: Receive No Buffers =3D 488
...
em2: RX overruns =3D 1356
em2: watchdog timeouts =3D 1
...

Only "ifconfig em2 down;ifconfig em2 up" helps for some time.
The same happens on em0 interface only, but not in the same time.
It is production (NAT) router with pf+pfsync+carp and failover over =
another router.
They are old "SunFire X4100" boxes (4GB RAM, 2*2 AMD Opteron 2.2GHz).

Regards, Rolandas Naujikas=



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