Packet corruption in re0

Pyun YongHyeon pyunyh at
Thu Feb 21 03:50:23 UTC 2008

On Thu, Feb 21, 2008 at 11:03:02AM +1000, Robert Backhaus wrote:
 > I am experiencing roughly 15% packet corruption on the re interface on
 > my freebsd 7/amd64  box.
 > Tue Feb  5 09:49:55 EST 2008
 > root at  amd64
 > The attached 3 files demonstrate the problem: "ping" shows the output
 > of ping -c 100, and shows 15% packet loss. "tcpdump" shows the packets
 > leaving, and some of the lost packets being returned with addresses,
 > ports and data corrupted. The data in these packets seems to be coming
 > from other packets passing through other interfaces at the time.
 > "remote-tcpdump" shows the packets being received and returned from
 > the other machine. Note that some packets are being corrupted on the
 > way out, too.
 > Just to make troubleshooting difficult, this problem only shows up
 > after the system has been up for roughly 36 hours, depending on the
 > amount of traffic.

I didn't take a look attached tcpdump files but I guess the
instability issue was fixed in HEAD. It's not yet MFCed but
I'll handle it in a week.

Would you try re(4) in HEAD?

 > I am using the latest bios that I am aware of. The bios that I
 > recently applied did include a firmware update for the realtek
 > interface, but this did not affect the problem.

Pyun YongHyeon

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