On Fri, 06 Jul 2012 09:46:33 +0100, Berni Elbourn wrote: > 11:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5722 > Gigabit Ethernet PCI Express > > With standard squeeze kernel seemingly once a day this nic stops > working. Looking at the switch port it seems the nic is transmitting (or > retransmitting) something as fast as possible. A simple ifdown/ifup > seems to cure for another day. > > On latest backport kernel 3.2.20-1~bpo60+1 (installed today) the nic > does seems to be stable. iperf reports 1gb performance. However the > count of dropped packets is slowly growing:
(...) > RX packets:8801144 errors:0 dropped:1824 overruns:0 frame:0 (...) > This issue is present in the firmware nonfree from stable, and > backports, and the using the latest source compiled from broadcom > 3.122n. I have changed cables and switch ports. There is another other > gigabit nic on the switch is nVidia Corporation MCP77 and this has no > errors or dropped packets. So you have tested with almost all of the possibilities (you've discarded a hardware issue by replacing the patch cord and using a different switch port and you've discarded a software/driver problem by installing a different kernel and the latest available broadcom driver) yet still you don't see a noticeable improvement on this, right? Then it can be something specific to your setup/environment... I would start with the ouput of "ethtool eth0" and "ethtool -k eth0" just in case. Have you noted an increment of packets being dropped when the system is running a concrete task or process that can exhaust the available memory? I ask this because Google suggest that dropped packates can be related to low memory situations :-? > Anyone else seeing this? How to progress? .. should I log a debian bug, > or just go buy an Intel card? Or ? :-) In workstations and servers I always try to have at least a couple of different NIC cards (from different manufacturers and models) just to prevent these situations, because if you think about it, what's a server with no network connection? Nowadays, close to nothing; a toaster is even more useful :-) Greetings, -- Camaleón -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/jt9gfr$2af$1...@dough.gmane.org
