Re: NetXtreme BCM5722 strangeness on Proliant ML115
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-kernel@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
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