Date: Wed, 21 Dec 2005 09:47:14 -0500 From: "John B. Wood" <john.wood@nrl.navy.mil> To: freebsd-ipfw@freebsd.org Subject: FreeBSD 6.0-RELEASE+Dummynet+Bridging Message-ID: <43A96AF2.3010504@nrl.navy.mil>
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Hello, all. I am running the subject software on a Dell Dimension 3000
desktop with two Ethernet interfaces (using the em and fxp drivers).
The kernel modules that are being used are dummynet.ko, ipfw.ko, and
if_bridge.ko. After setting up the pipes, etc. the platform runs as
expected doing its bridging and desired dummynet traffic shaping
function but consistently crashes the platform after about 15 minutes
requiring a power off/on restart (or logging in on a virtual terminal
and issuing a shutdown). If I just do bridging with IPFW but without
dummynet.ko loaded everything is fine. The same behavior results if I
recompile the kernel to support firewalling and dummynet.
I am consistently obtaining what appears to be a FIFO overrun (kernel:
em0: Rx overrun).
I also tried all this with an IBM T22 Thinkpad (internal + PC Card
Ethernet interfaces) and got the same result. Has anyone had a similar
experience and found a fix? Thanks for your time and comment. Sincerely,
--
__ __ ______ __ John Wood
/ |\ / /\ / ____ \ / /\ Code 5551
/ | ||/ / / / /\__/ /| / / / U.S. Naval Research Lab
/ /| |/ / / / /_/_/ / / / / / 4555 Overlook Avenue, SW
/ / | / / / ___ / / / / / Washington, DC 20375-5337
/ / /| / / / /\_| |\_/ / /_/_ (202) 767-2608
/_/ / |_/ / /_/ / |_|| /_____/\ (202) 767-3377 (FAX)
\_\/ \_\/ \_\/ \_\| \_____\/ e-mail: wood@itd.nrl.navy.mil
WWW: http://server5550.itd.nrl.navy.mil
To have and to want more that is life. - F. Nietzsche
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