tx_full v.s tx_free race fix in 8xx_io/enet.c?

Tom Rini trini at kernel.crashing.org
Sat Dec 6 06:53:21 EST 2003


On Thu, Dec 04, 2003 at 03:32:04PM +0100, Joakim Tjernlund wrote:
> > Something I find a bit odd is that I can run ping -s 1472 -f
> > <myTargetIp>
> > without problems, but if i "jump start" the ping with "ping
> > -s 800 -f <myTargetIp> -l 8"
> > I start to loose packages. Ifconfig shows no errors for both cases.
> > Do you get the same?
> >
> >  Jocke
>
> Found this problem. It is the backoff/retry logic thats
> causing very long TX delays. If I reduce "retlim"(retry limit) from
> 15 to 6, the system recovers from a large packet ping storm.
>
> Is it a bad idea to reduce the retry limit?

I don't know, sorry.

--
Tom Rini
http://gate.crashing.org/~trini/

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