On Mon, 09 Jul 2012 10:35:24 +0100, Berni Elbourn wrote: > On 07/07/12 15:18, Camaleón wrote:
(...) >> 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 :-) >> > Strangest thing. The dropped packets stopped at 3000 odd. After reboots > (this machine is shutdown overnight) the number of dropped packets seems > to stop incrementing at 20 or 30 or so even after several gigabytes of > transfer. You mean with Squeeze's stock kernel or the backported one? :-? > Performance however is fine with the backports kernel: If there's a noticeable difference between both kernels, I would report it just in the event the problem can be addressed and patched for the upcoming dot point releases. > $ cat /proc/version > Linux version 3.2.0-0.bpo.2-amd64 (Debian 3.2.20-1~bpo60+1) > (debian-ker...@lists.debian.org) (gcc version 4.4.5 (Debian 4.4.5-8) ) > #1 SMP Fri Jun 29 20:42:29 UTC 2012 > > $ sudo ethtool eth0 (...) This output looks normal. > $ sudo ethtool -k eth0 (...) > $ sudo ethtool -i eth0 > driver: tg3 > version: 3.121 > firmware-version: 5722-v3.07, ASFIPMI v6.02 bus-info: 0000:11:00.0 ^^^^^^^^^^ And also these. Well, you can check if there's the possibility fo getting an updated firmware but for NICs I never had to did an update before :-? > eth0 Link encap:Ethernet HWaddr 00:21:5a:d3:d0:0c > inet addr:192.168.2.10 Bcast:192.168.2.255 > Mask:255.255.255.0 inet6 addr: fe80::221:5aff:fed3:d00c/64 > Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:123154 errors:0 *dropped:26* overruns:0 frame:0 TX > packets:131936 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:15913111 (15.1 MiB) TX bytes:107913843 (102.9 MiB) > Interrupt:19 Despite the small number of dropped packages (26) the total ammount of received packages is also very low (15.1 MiB), there shouldn't be a single drop. Is "dmesg | grep -i eth0" showing any anomaly? 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/jtep03$sc9$1...@dough.gmane.org