Date: Thu, 6 Mar 2008 07:55:18 -0300 From: JoaoBR <joao@matik.com.br> To: freebsd-current@freebsd.org, pyunyh@gmail.com Cc: Niki Denev <nike_d@cytexbg.com>, "Eric L. Chen" <d9364104@mail.nchu.edu.tw>, Robert Backhaus <robbak@robbak.com> Subject: Re: Packet corruption in re0 Message-ID: <200803060755.18906.joao@matik.com.br> In-Reply-To: <20080221075438.GD26427@cdnetworks.co.kr> References: <d4499580802201703t1dcc3143x96e85cd8e562489@mail.gmail.com> <2e77fc10802202343j2ac419bay89a2442a4832b2d@mail.gmail.com> <20080221075438.GD26427@cdnetworks.co.kr>
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On Thursday 21 February 2008 04:54:38 Pyun YongHyeon wrote: > On Thu, Feb 21, 2008 at 07:43:18AM +0000, Niki Denev wrote: > > On Thu, Feb 21, 2008 at 5:15 AM, Eric L. Chen <d9364104@mail.nchu.edu.= tw>=20 wrote: > > > On Thu, 2008-02-21 at 11:03 +1000, Robert Backhaus wrote: > > > > I am experiencing roughly 15% packet corruption on the re interfa= ce > > > > 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 packe= ts > > > > 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 t= he > > > > 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=3D"inet 192.168.1.10 netmask 255.255.255.0 -rxcsum > > > -txcsum -tso -lr > > > o" > > > > > > /Eric > > > > I experienced the same problems shortly after upgrading to 7.0-PRE > > After about a day and something of uptime my ssh shells began to drop > > with messages about corrupted/mismatched checksums. > > I "fixed" the problem by putting an em(4) interface in the machine, > > because I need it to be online and accessible remotely at all times. > > There had been several bus_dma(9) related bugs in re(4) for a long > time and I guess I fixed most of them. Hiding actual bugs by > replacing interfaces is not a good way to fix root cause of the issue. > If you can reproduce above issues in HEAD please let me know. Hi is here any change in site for 7.0? Because the problem still persist on=20 releng_7 or better to change the hardware ? thank's =2D-=20 Jo=E3o A mensagem foi scaneada pelo sistema de e-mail e pode ser considerada segura. Service fornecido pelo Datacenter Matik https://datacenter.matik.com.br
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