Date: Thu, 21 Feb 2008 13:15:54 +0800 From: "Eric L. Chen" <d9364104@mail.nchu.edu.tw> To: Robert Backhaus <robbak@robbak.com> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: Packet corruption in re0 Message-ID: <1203570954.1696.2.camel@localhost> In-Reply-To: <d4499580802201703t1dcc3143x96e85cd8e562489@mail.gmail.com> References: <d4499580802201703t1dcc3143x96e85cd8e562489@mail.gmail.com>
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On Thu, 2008-02-21 at 11:03 +1000, Robert Backhaus wrote: > I am experiencing roughly 15% packet corruption on the re interface on > my freebsd 7/amd64 box. > > FreeBSD gw.flexi.robbak.com 7.0-PRERELEASE FreeBSD 7.0-PRERELEASE #8: > Tue Feb 5 09:49:55 EST 2008 > root@gw.flexi.robbak.com:/usr/obj/usr/src/sys/GW 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 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. > _______________________________________________ I disabled some hw features and works fine. like this (/etc/rc.conf) ifconfig_re0="inet 192.168.1.10 netmask 255.255.255.0 -rxcsum -txcsum -tso -lr o" /Eric
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