Re: kernel: eth0: card reports no resources.

On Wed, 16 Oct 2002, Alex Kramarov wrote:

> I have 2 ibm X330 servers, 2*PIII 1.1GHZ, 2 inter eepro100 onboard NICs,
> both of them running TUX (advanced kernel mode web server that puts all
> other web servers in a back pocket if measuring raw power). the boxes run
> 24/7, loaded, outputting between 20 to 40 MB/sec, with several thousands of
> concurrent connections each.
...
> "eepro100.c:v1.09j-t 9/29/99 Donald Becker
...
> "eepro100.c: $Revision: 1.36 $ 2000/11/17 Modified by Andrey V. Savochkin

Note that I don't support modified drivers.

> the card is 82557 based

That's a more reliable chip than the later versions, which have known
problems.

> I didn't try the vm proc settings change, but i don't believe that they
> would help - these machines serve from memory, they don't access the disk at
> all during normal operation.

They will help.  The skbuff shortage isn't related to whether the
content is served from kernel memory or a user process, or if the disk
is being accessed.

> now, i read something about sleep mode, didn't find exactly what it is, but
> i assume it's bad :

It's bad.  Turn it off.

>    Sleep mode is enabled.  This is not recommended.
>    Under high load the card may not respond to
>    PCI requests, and thus cause a master abort.
>    To clear sleep mode use the '-G 0 -w -w -f' options.

-- 
Donald Becker				[email protected]
Scyld Computing Corporation		http://www.scyld.com
410 Severn Ave. Suite 210		Scyld Beowulf cluster system
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